International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
This paper presents the design and the implementation of a new microcontroller-based solar
Power inverter. The aim of this paper is to design single phase inverter which can convert DC voltage
to AC voltage at high efficiency and low cost. Solar and wind powered electricity generation are
being favored nowadays as the world increasingly focuses on environmental concerns. Power
inverters, which convert solar-cell DC into domestic-use AC, are one of the key technologies for
delivering efficient AC power The hardware and software design are oriented towards a single-chip
microcontroller-based system, hence minimizing the size and cost. With this new approach the
modularization of the conversion from solar power to electric power at its maximum power point can
be made more compact and more reliable.
A hybrid DC/DC/AC converter connected to the grid without a three-phase transformer is controlled. The decentralized control method is applied to the hybrid DC-DC converter such that the maximum power of PV flows to the grid side. This controller must charge and discharge the battery at the proper time. It must also regulate DC-link voltage. An additional advantage of the proposed control is that the three-phase inverter does not need a separate controller such as PWM and SPWM. A simple technique is used for creating the desired phase shift in the three-phase inverter, which makes the active and reactive power of the inverter controllable. A new configuration is also proposed to transmit and manage the generation power of PV. In this scheme, the battery and fuel cell are employed as an auxiliary source to manage the generation power of PV. Finally, a real-time simulation is performed to verify the effectiveness of the proposed controller and system by considering the real characteristics of PV and FC.
This paper explained details of Comparison of solar based closed loop DC -DC converter using PID and ANN Control for Shunt motor drive. Solar panel output is given to full bridge converter, stepup transformer, full wave converter, ∏ filter and Shunt motor drive are connected.Comparator compare the set value and the output signal of the motor produce a signal, based on the signal, full wave conveter produce the voltage to run the motor, Speed of motor,Torque and Armature current,Rise time,Peak time, Settling time and Steady state error are measured and evaluated by experimental.A circuit operation and simulation designed for a 1000 RPM speed of shunt motor arrived and tested.
High step up boost converter based micro inverter with mppt and current controlIAEME Publication
This document summarizes a research paper that proposes a high step-up boost converter-based micro inverter system for grid-connected photovoltaic power generation. A high step-up boost converter is used to efficiently transfer maximum power from the solar panel to the grid. An incremental conductance maximum power point tracking algorithm controls the converter to extract maximum power. A single-phase inverter with current control is also implemented for grid synchronization. The proposed system was modeled and simulated in MATLAB/Simulink to validate the design of the high step-up converter and maximum power point tracking approach.
This document summarizes a research paper on a hybrid AC-DC microgrid system with intelligent load flow control. The system consists of an AC grid connected to conventional AC loads and a DC grid connected to photovoltaic arrays, DC loads, and a battery. An intelligent load flow control system allows users to prioritize devices as critical or non-critical and divert power accordingly. The system aims to reduce multiple AC-DC conversions through direct connections of DC sources and loads, improving efficiency over individual AC or DC grids. Power electronic interfaces like DC-DC converters and a modified sine wave inverter are used to integrate the AC and DC systems. A microprocessor-based intelligent load monitoring system with a web interface is also incorporated.
An improved luo converter for high power applicationseSAT Journals
Abstract
Power conversion is one of the major requirements in various industries and in daily life. Among various types of power
conversion, DC-DC conversion has greater importance. DC-DC conversion can be reliably performed using luo converter. It
employs voltage lift technique so that output voltage is increased stage by stage, in arithmetic progression. Luo converter can be
incorporated with the Z network or impedance network so as to ensure simple start up and smooth power conversion. An
impedance network consist of two identical inductors and two identical capacitors connected in ‘X’ shape. Besides power
conversion it also offers filtering operation. The luo converter in this scheme is of switched capacitor type. It helps to provide
regulated output voltage from an unregulated source of power supply. The major benefits of this proposed scheme is that it
combines the advantages of the switched capacitor, voltage lift technique and the impedance network. Hence the proposed scheme
has various advantages such as high power density, larger range of output DC voltage, lower or no inrush current, lower
harmonic injection, simple circuit, high voltage transfer gain, can process upto several tens of watts of power. The simulation
analysis and the hardware implementation shows that the output voltage obtained is higher than the expected theoretical value.
i.e, it is the highly boosted voltage output.
Keywords: Z-network, boost voltage, voltage lift technique
This document summarizes an article that reports on developing an automatic active cooling system for a solar panel with real-time energy monitoring using Internet of Things (IoT) technology. The system aims to improve solar panel efficiency by maintaining optimal operating temperature through active cooling. It consists of sensors to measure temperature, light intensity and energy output, a microcontroller to control the cooling system, and an IoT interface to monitor the system remotely. Experimental results show that active cooling increases the solar panel's average output voltage, current and power by lowering its surface temperature compared to passive cooling.
IRJET- Designing and Fault Analysis of a Charge Controller for PV SystemIRJET Journal
This document summarizes a research paper that designed and analyzed faults in a charge controller for a photovoltaic (PV) system. The charge controller prevents overcharging of batteries to extend their lifespan and prevents reverse current flow from batteries to solar panels without solar power. The paper models the PV system and charge controller in MATLAB/Simulink. It analyzes faults like input overvoltage, battery overvoltage, undervoltage, output overcurrent, and ground faults. Graphical user interfaces display the system operation and detected faults to help rectify issues and improve stability. Simulation results demonstrate the charge controller's performance in managing battery charging and discharging based on solar irradiation levels to meet load demand.
This paper presents the design and the implementation of a new microcontroller-based solar
Power inverter. The aim of this paper is to design single phase inverter which can convert DC voltage
to AC voltage at high efficiency and low cost. Solar and wind powered electricity generation are
being favored nowadays as the world increasingly focuses on environmental concerns. Power
inverters, which convert solar-cell DC into domestic-use AC, are one of the key technologies for
delivering efficient AC power The hardware and software design are oriented towards a single-chip
microcontroller-based system, hence minimizing the size and cost. With this new approach the
modularization of the conversion from solar power to electric power at its maximum power point can
be made more compact and more reliable.
A hybrid DC/DC/AC converter connected to the grid without a three-phase transformer is controlled. The decentralized control method is applied to the hybrid DC-DC converter such that the maximum power of PV flows to the grid side. This controller must charge and discharge the battery at the proper time. It must also regulate DC-link voltage. An additional advantage of the proposed control is that the three-phase inverter does not need a separate controller such as PWM and SPWM. A simple technique is used for creating the desired phase shift in the three-phase inverter, which makes the active and reactive power of the inverter controllable. A new configuration is also proposed to transmit and manage the generation power of PV. In this scheme, the battery and fuel cell are employed as an auxiliary source to manage the generation power of PV. Finally, a real-time simulation is performed to verify the effectiveness of the proposed controller and system by considering the real characteristics of PV and FC.
This paper explained details of Comparison of solar based closed loop DC -DC converter using PID and ANN Control for Shunt motor drive. Solar panel output is given to full bridge converter, stepup transformer, full wave converter, ∏ filter and Shunt motor drive are connected.Comparator compare the set value and the output signal of the motor produce a signal, based on the signal, full wave conveter produce the voltage to run the motor, Speed of motor,Torque and Armature current,Rise time,Peak time, Settling time and Steady state error are measured and evaluated by experimental.A circuit operation and simulation designed for a 1000 RPM speed of shunt motor arrived and tested.
High step up boost converter based micro inverter with mppt and current controlIAEME Publication
This document summarizes a research paper that proposes a high step-up boost converter-based micro inverter system for grid-connected photovoltaic power generation. A high step-up boost converter is used to efficiently transfer maximum power from the solar panel to the grid. An incremental conductance maximum power point tracking algorithm controls the converter to extract maximum power. A single-phase inverter with current control is also implemented for grid synchronization. The proposed system was modeled and simulated in MATLAB/Simulink to validate the design of the high step-up converter and maximum power point tracking approach.
This document summarizes a research paper on a hybrid AC-DC microgrid system with intelligent load flow control. The system consists of an AC grid connected to conventional AC loads and a DC grid connected to photovoltaic arrays, DC loads, and a battery. An intelligent load flow control system allows users to prioritize devices as critical or non-critical and divert power accordingly. The system aims to reduce multiple AC-DC conversions through direct connections of DC sources and loads, improving efficiency over individual AC or DC grids. Power electronic interfaces like DC-DC converters and a modified sine wave inverter are used to integrate the AC and DC systems. A microprocessor-based intelligent load monitoring system with a web interface is also incorporated.
An improved luo converter for high power applicationseSAT Journals
Abstract
Power conversion is one of the major requirements in various industries and in daily life. Among various types of power
conversion, DC-DC conversion has greater importance. DC-DC conversion can be reliably performed using luo converter. It
employs voltage lift technique so that output voltage is increased stage by stage, in arithmetic progression. Luo converter can be
incorporated with the Z network or impedance network so as to ensure simple start up and smooth power conversion. An
impedance network consist of two identical inductors and two identical capacitors connected in ‘X’ shape. Besides power
conversion it also offers filtering operation. The luo converter in this scheme is of switched capacitor type. It helps to provide
regulated output voltage from an unregulated source of power supply. The major benefits of this proposed scheme is that it
combines the advantages of the switched capacitor, voltage lift technique and the impedance network. Hence the proposed scheme
has various advantages such as high power density, larger range of output DC voltage, lower or no inrush current, lower
harmonic injection, simple circuit, high voltage transfer gain, can process upto several tens of watts of power. The simulation
analysis and the hardware implementation shows that the output voltage obtained is higher than the expected theoretical value.
i.e, it is the highly boosted voltage output.
Keywords: Z-network, boost voltage, voltage lift technique
This document summarizes an article that reports on developing an automatic active cooling system for a solar panel with real-time energy monitoring using Internet of Things (IoT) technology. The system aims to improve solar panel efficiency by maintaining optimal operating temperature through active cooling. It consists of sensors to measure temperature, light intensity and energy output, a microcontroller to control the cooling system, and an IoT interface to monitor the system remotely. Experimental results show that active cooling increases the solar panel's average output voltage, current and power by lowering its surface temperature compared to passive cooling.
IRJET- Designing and Fault Analysis of a Charge Controller for PV SystemIRJET Journal
This document summarizes a research paper that designed and analyzed faults in a charge controller for a photovoltaic (PV) system. The charge controller prevents overcharging of batteries to extend their lifespan and prevents reverse current flow from batteries to solar panels without solar power. The paper models the PV system and charge controller in MATLAB/Simulink. It analyzes faults like input overvoltage, battery overvoltage, undervoltage, output overcurrent, and ground faults. Graphical user interfaces display the system operation and detected faults to help rectify issues and improve stability. Simulation results demonstrate the charge controller's performance in managing battery charging and discharging based on solar irradiation levels to meet load demand.
This document summarizes an article from the International Journal of Power Electronics and Drive Systems that presents a dynamic power management model for a standalone DC microgrid using a Combined PI and Hysteresis Control (CPIHC) technique. The proposed microgrid includes a solar PV array, lead-acid battery storage, and constant/dynamic loads. Simulation results show the CPIHC technique efficiently manages power flow, regulates the DC link voltage, and maintains the battery's state of charge, performing better than a conventional Combined PI and Droop Control approach. The document provides background on various control methods used in microgrids and describes the modeling and simulation of the key components in the proposed standalone DC microgrid system.
This study investigates experimentally the performance of two-dimensional solar tracking systems with reflector using commercial silicon based photovoltaic module, with open and closed loop control systems. Different reflector materials were also investigated. The experiments were performed at the Hashemite University campus in Zarqa at a latitude of 32⁰, in February and March. Photovoltaic output power and performance were analyzed. It was found that the modified photovoltaic module with mirror reflector generated the highest value of power, while the temperature reached a maximum value of 53 ̊ C. The modified module suggested in this study produced 5% more PV power than the two-dimensional solar tracking systems without reflector and produced 12.5% more PV power than the fixed PV module with 26⁰ tilt angle.
Analysis and design of grid connected photovoltaic systems Karthik Dm
This paper proposes a new architecture for grid-connected photovoltaic systems called multiple-integrated converter modules sharing an unfolding full-bridge inverter with a pseudo dc link (MIPs). The proposed MIPs configuration can improve power conversion efficiency, reduce control circuit complexity, and lower costs. It consists of distributed flyback DC-DC converters and an unfolding full-bridge inverter with an AC filter. Experimental results validate the performance of the proposed design and confirm over 99% maximum power point tracking efficiency.
Modelling of fuzzy logic controller for variable step mppt in photovoltaic sy...eSAT Journals
Abstract
The output power of photovoltaic electrical systems is highly dynamic and non-linear in nature. In order to extract maximum power
from such systems, maximum power point tracking (MPPT) technique is required. MPPT techniques with variable step-size of
perturbation track the maximum power point (MPP) with more efficiency. In this paper, a model of a fuzzy logic controller (FLC) for
determining the step-size of perturbation in duty-cycle of a photovoltaic electrical system to track MPP is presented. The model is
simulated in MATLAB/Simulink®.
Keywords: Maximum power point tracking, perturb and observe, boost converter, fuzzy logic control, membership
function, crisp universe, centre of area, pulse width modulation
This document summarizes a research paper about using sliding mode control to track the maximum power point of a DC-DC boost converter in a photovoltaic system. A sliding mode controller estimates the maximum power point as a reference to force the PV system to operate at this point. The proposed system with sliding mode control is tested using MATLAB/SIMULINK under constant and varying solar irradiance conditions. The maximum power is tracked and delivered to charge a battery, increasing the charging current and reducing charging time. Keywords include sliding manifold, solar irradiance, and photovoltaic system.
This paper presents the analysis, modeling and control of a grid connected photovoltaic generation system. The model contains a detailed representation of the solar array, grid side multilevel neutral point clamped voltage source inverter. Fuzzy logic controller for the maximum power point tracking of a photovoltaic system under variable temperature and insulation conditions is discussed. The PQ control approach has been presented for the multilevel inverter. One of the most common control strategies structures applied to decentralized power generator is based on power direct control employing a controller for the dc link voltage and a controller to regulate the injected current to the utility network. The proposed models were implemented in Matlab/Simulink.
The output characteristics of the photovoltaic (PV) installation normally depend on solar radiation and ambient temperature, the charge impedance, its maximum power point (MPP) is not constant. In each state of the PV module has a point where it can produce its MPP. Therefore, MPPT (Maximum Power Point Tracking) methods can be used to keep the photovoltaic panel running on its MPP. In this article, the objective was to determine how the different maximum point power monitoring (MPPT) techniques applied to PV systems work. Therefore, two MPPT algorithms are presented and compared under different temperature and radiation conditions: MRAC methods and sliding mode controller combined with the Incremental Conductivity (IC) algorithm. These algorithms are widely used in PV systems because of their easy implementation and low cost. These techniques were analyzed and their performance evaluated using the PSIM software under different types of solar radiation and temperature.
Enhanced MPPT Technique For DC-DC Luo Converter Using Model Predictive Contro...IJERD Editor
The present study explored an enhanced maximum power point tracking technique which ensures fast tracking in PV systems. This system represents a Model Predictive Control (MPC) MPPT technique. Extracting the maximum power from PV systems has been widely investigated. The main benefaction of this article is an improvement of the Perturb and Observe (P&O) method through a fixed step predictive control under measured fast solar radiation. The preferred predictive control to achieve Maximum Power Point (MPP) speeds up the control loop since it predicts error before the switching signal is applied to the DC-DC Luo converter. Comparing the improved technique to the conventional P&O method indicates significant improvement in PV system performance. The proposed MPC-MPPT technique for a Luo converter is implemented using the MAT LAB SIMULINK
Comparison of P&O and fuzzy MPPT Methods for Photovoltaic SystemLOUKRIZ Abdelouadoud
This document compares the perturb and observe (P&O) method and fuzzy logic control method for maximum power point tracking (MPPT) in photovoltaic systems. It presents the mathematical modeling of solar panels and the MPPT system configuration including a PV array, boost converter, and MPPT controller. Both the P&O and fuzzy logic MPPT controllers are described and their simulation results are compared under varying irradiation and temperature conditions, showing that the fuzzy logic controller provides smoother power output and more stable operation at the maximum power point.
The document compares the performance of three MPPT (maximum power point tracking) controllers - Perturb & Observe, PID, and fuzzy logic control - for a photovoltaic system in southwest Algeria. It first provides background on energy conversion and MPPT control in photovoltaic systems. It then describes the modeled system components - the photovoltaic generator, DC-DC boost converter, storage battery, and three MPPT algorithms. The goal of the comparison is to explain the precision, rapidity, and stability of the standalone photovoltaic system under each MPPT control strategy.
Fast photovoltaic IncCond-MPPT and backstepping control, using DC-DC boost c...IJECEIAES
In this paper, we present our contribution in photovoltaic energy optimization subject. In this research work, the goal is to determinate fastly the optimal PV Module working point, allowing maximum power extraction. In this work we use DC-DC Boost converter to control the working point, by adjusting PV voltage trough duty cycle. In order to achieve our goal, we use the combination of incremental conductance MPPT technique and DC-DC Boost converter backstepping control. The validation of this control is made by Matlab simulation; the obtained results prove its effectiveness and its good maximum power tracking dynamics for different irradiance and temperature profiles.
Design an electric vehicle using PV array with five phase permanent magnet sy...ijtsrd
The purpose of this project is to design an Electrical vehicle with help renewable energy source which can carry the lab equipment, books and other goods from one building to other building of AL FALAH UNIVERSITY also student as well as professors can go easily from one building to other building of AL FALAH UNIVERSITY. This paper gives a review of the electric vehicle technology that focuses on the types of drives and the control of speed of five phase permanent magnet synchronous motor. This paper highlights the characteristics, performance measure, requirements and the operational procedure of the electric vehicle drives and control. Dhirender Kumar | Ameen Uddin Ahmad "Design an electric vehicle using PV array with five-phase permanent magnet synchronous motor." Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-6 , October 2019, URL: https://www.ijtsrd.com/papers/ijtsrd29173.pdf Paper URL: https://www.ijtsrd.com/engineering/electrical-engineering/29173/design-an-electric-vehicle-using-pv-array-with-five-phase-permanent-magnet-synchronous-motor/dhirender-kumar
This thesis proposes advanced control strategies for photovoltaic and energy storage power conversion systems to improve energy harvesting, ensure grid compliance, and provide grid support. The first improvement extends the input voltage range of inverters to increase solar energy capture. A voltage-reactive power control strategy and modified modulation technique provide a lower voltage limit. Maximizing semiconductor utilization achieves a higher limit, improving energy capture by 30%. A second strategy integrates grid fault detection within control algorithms to enable compliance. The final contribution provides frequency and voltage support functions for grid stability beyond existing standards. Combined, these approaches develop high-performance, efficient, safe and grid-friendly solar power solutions.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
This document describes the design of a battery charging circuit for a solar photovoltaic (SPV) system. It proposes using an intelligent fuzzy logic based discrete proportional-integral-derivative (FL-DPID) maximum power point tracking (MPPT) algorithm to operate the SPV panel at its maximum power point (MPP) under varying solar irradiance. The output of the FL-DPID MPPT-driven boost converter is used to charge a battery via an optimal proportional-integral-derivative (O-PID) controlled buck converter. The O-PID controller parameters are obtained using genetic algorithm to provide constant voltage and current for effective battery charging. A 200W prototype SPV panel is simulated in MATLAB/Simul
This paper provides a new approach to reducing high-order harmonics in 400 Hz inverter using a three-level neutral-point clamped (NPC) converter. A voltage control loop using the harmonic compensation combined with NPC clamping diode control technology. The capacitor voltage imbalance also causes harmonics in the output voltage. For 400 Hz inverter, maintain a balanced voltage between the two input (direct current) (DC) capacitors is difficult because the pulse width modulation (PWM) modulation frequency ratio is low compared to the frequency of the output voltage. A method of determining the current flowing into the capacitor to control the voltage on the two balanced capacitors to ensure fast response reversal is also given in this paper. The combination of a high-harmonic resonator controller and a neutral-point voltage controller working together on the 400 Hz NPC inverter structure is given in this paper.
This document compares buck and boost converter topologies for use in photovoltaic power systems to maximize power extraction from solar panels. It finds that the boost converter is better suited as the PV interface as it can maintain continuous input current flow to the load. Simulation results show that a boost converter tracking the maximum power point of a PV array can increase the output voltage from 17.1V to 24.9V and deliver 60W of power to the load. The boost converter also performs well under varying temperature and solar irradiation conditions according to the simulations.
Operational performance of a PV generator feeding DC shunt and induction moto...IJECEIAES
This paper presented the transient and operational behavior of a parallel Combination of DC Shunt Motor and IM fed by a photovoltaic generator at different solar irradiance levels. The maximum power point of current/voltage (I/V) characteristic of the PV generator was achieved for different solar intensities, by utilizing an open circuit voltage method. The nonlinear operational behavior of (I/V) characteristics of the PV generator at various solar intensities and the magnetization curve of the ferromagnetic material of the DC shunt motor were both modeled by high order polynomial mathematical expressions. The study investigated the response of the system at different solar irradiance levels and changing the torque loads for both motors and then following step change in solar intensity levels with fixed loading torques for both motors. All numerical simulations were executed using MATLAB software.
Modeling Simulation and Design of Photovoltaic Array with MPPT Control Techni...IJAPEJOURNAL
The Renewable energy is important part of power generation system due to diminution of fossils fuel. Energy production from photovoltaic (PV) is widely accepted as it is clean, available in abundance, & free of cost. This paper deals with modeling of PV array including the effects of temperature and irradiation. The DC-DC converter is used for boosting low voltage of the PV array to high DC voltage. Since the efficiency of a PV array is around 13% which is low, it is desirable to operate the module at the peak power point to improve the utilization of the PV array. A maximum power point tracker (MPPT) is used for extracting the maximum power from the solar PV array and transferring that power to the load. To track maximum power point (MPP) Perturb & Observe (P & O) algorithm is used which periodically perturbs the array voltage or current and compare PV output power with that of previous perturbation cycle which controls duty cycle of DC-DC converter. The entire system is simulated in MATLAB /SIMULINK and simulation results are presented.
This summary provides the key details from the document in 3 sentences:
The document presents a study on implementing an anti-windup PI controller for speed control of an induction machine using direct torque control (DTC) strategy. Simulation and experimental results showed that the proposed anti-windup PI controller improved the dynamic step response of speed control in terms of overshoot compared to a conventional PI controller. The validity of the control strategy was verified by implementing the anti-windup PI controller on a dSPACE 1104 board to control the speed of a 1.5 kW induction machine.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
This document summarizes an article from the International Journal of Power Electronics and Drive Systems that presents a dynamic power management model for a standalone DC microgrid using a Combined PI and Hysteresis Control (CPIHC) technique. The proposed microgrid includes a solar PV array, lead-acid battery storage, and constant/dynamic loads. Simulation results show the CPIHC technique efficiently manages power flow, regulates the DC link voltage, and maintains the battery's state of charge, performing better than a conventional Combined PI and Droop Control approach. The document provides background on various control methods used in microgrids and describes the modeling and simulation of the key components in the proposed standalone DC microgrid system.
This study investigates experimentally the performance of two-dimensional solar tracking systems with reflector using commercial silicon based photovoltaic module, with open and closed loop control systems. Different reflector materials were also investigated. The experiments were performed at the Hashemite University campus in Zarqa at a latitude of 32⁰, in February and March. Photovoltaic output power and performance were analyzed. It was found that the modified photovoltaic module with mirror reflector generated the highest value of power, while the temperature reached a maximum value of 53 ̊ C. The modified module suggested in this study produced 5% more PV power than the two-dimensional solar tracking systems without reflector and produced 12.5% more PV power than the fixed PV module with 26⁰ tilt angle.
Analysis and design of grid connected photovoltaic systems Karthik Dm
This paper proposes a new architecture for grid-connected photovoltaic systems called multiple-integrated converter modules sharing an unfolding full-bridge inverter with a pseudo dc link (MIPs). The proposed MIPs configuration can improve power conversion efficiency, reduce control circuit complexity, and lower costs. It consists of distributed flyback DC-DC converters and an unfolding full-bridge inverter with an AC filter. Experimental results validate the performance of the proposed design and confirm over 99% maximum power point tracking efficiency.
Modelling of fuzzy logic controller for variable step mppt in photovoltaic sy...eSAT Journals
Abstract
The output power of photovoltaic electrical systems is highly dynamic and non-linear in nature. In order to extract maximum power
from such systems, maximum power point tracking (MPPT) technique is required. MPPT techniques with variable step-size of
perturbation track the maximum power point (MPP) with more efficiency. In this paper, a model of a fuzzy logic controller (FLC) for
determining the step-size of perturbation in duty-cycle of a photovoltaic electrical system to track MPP is presented. The model is
simulated in MATLAB/Simulink®.
Keywords: Maximum power point tracking, perturb and observe, boost converter, fuzzy logic control, membership
function, crisp universe, centre of area, pulse width modulation
This document summarizes a research paper about using sliding mode control to track the maximum power point of a DC-DC boost converter in a photovoltaic system. A sliding mode controller estimates the maximum power point as a reference to force the PV system to operate at this point. The proposed system with sliding mode control is tested using MATLAB/SIMULINK under constant and varying solar irradiance conditions. The maximum power is tracked and delivered to charge a battery, increasing the charging current and reducing charging time. Keywords include sliding manifold, solar irradiance, and photovoltaic system.
This paper presents the analysis, modeling and control of a grid connected photovoltaic generation system. The model contains a detailed representation of the solar array, grid side multilevel neutral point clamped voltage source inverter. Fuzzy logic controller for the maximum power point tracking of a photovoltaic system under variable temperature and insulation conditions is discussed. The PQ control approach has been presented for the multilevel inverter. One of the most common control strategies structures applied to decentralized power generator is based on power direct control employing a controller for the dc link voltage and a controller to regulate the injected current to the utility network. The proposed models were implemented in Matlab/Simulink.
The output characteristics of the photovoltaic (PV) installation normally depend on solar radiation and ambient temperature, the charge impedance, its maximum power point (MPP) is not constant. In each state of the PV module has a point where it can produce its MPP. Therefore, MPPT (Maximum Power Point Tracking) methods can be used to keep the photovoltaic panel running on its MPP. In this article, the objective was to determine how the different maximum point power monitoring (MPPT) techniques applied to PV systems work. Therefore, two MPPT algorithms are presented and compared under different temperature and radiation conditions: MRAC methods and sliding mode controller combined with the Incremental Conductivity (IC) algorithm. These algorithms are widely used in PV systems because of their easy implementation and low cost. These techniques were analyzed and their performance evaluated using the PSIM software under different types of solar radiation and temperature.
Enhanced MPPT Technique For DC-DC Luo Converter Using Model Predictive Contro...IJERD Editor
The present study explored an enhanced maximum power point tracking technique which ensures fast tracking in PV systems. This system represents a Model Predictive Control (MPC) MPPT technique. Extracting the maximum power from PV systems has been widely investigated. The main benefaction of this article is an improvement of the Perturb and Observe (P&O) method through a fixed step predictive control under measured fast solar radiation. The preferred predictive control to achieve Maximum Power Point (MPP) speeds up the control loop since it predicts error before the switching signal is applied to the DC-DC Luo converter. Comparing the improved technique to the conventional P&O method indicates significant improvement in PV system performance. The proposed MPC-MPPT technique for a Luo converter is implemented using the MAT LAB SIMULINK
Comparison of P&O and fuzzy MPPT Methods for Photovoltaic SystemLOUKRIZ Abdelouadoud
This document compares the perturb and observe (P&O) method and fuzzy logic control method for maximum power point tracking (MPPT) in photovoltaic systems. It presents the mathematical modeling of solar panels and the MPPT system configuration including a PV array, boost converter, and MPPT controller. Both the P&O and fuzzy logic MPPT controllers are described and their simulation results are compared under varying irradiation and temperature conditions, showing that the fuzzy logic controller provides smoother power output and more stable operation at the maximum power point.
The document compares the performance of three MPPT (maximum power point tracking) controllers - Perturb & Observe, PID, and fuzzy logic control - for a photovoltaic system in southwest Algeria. It first provides background on energy conversion and MPPT control in photovoltaic systems. It then describes the modeled system components - the photovoltaic generator, DC-DC boost converter, storage battery, and three MPPT algorithms. The goal of the comparison is to explain the precision, rapidity, and stability of the standalone photovoltaic system under each MPPT control strategy.
Fast photovoltaic IncCond-MPPT and backstepping control, using DC-DC boost c...IJECEIAES
In this paper, we present our contribution in photovoltaic energy optimization subject. In this research work, the goal is to determinate fastly the optimal PV Module working point, allowing maximum power extraction. In this work we use DC-DC Boost converter to control the working point, by adjusting PV voltage trough duty cycle. In order to achieve our goal, we use the combination of incremental conductance MPPT technique and DC-DC Boost converter backstepping control. The validation of this control is made by Matlab simulation; the obtained results prove its effectiveness and its good maximum power tracking dynamics for different irradiance and temperature profiles.
Design an electric vehicle using PV array with five phase permanent magnet sy...ijtsrd
The purpose of this project is to design an Electrical vehicle with help renewable energy source which can carry the lab equipment, books and other goods from one building to other building of AL FALAH UNIVERSITY also student as well as professors can go easily from one building to other building of AL FALAH UNIVERSITY. This paper gives a review of the electric vehicle technology that focuses on the types of drives and the control of speed of five phase permanent magnet synchronous motor. This paper highlights the characteristics, performance measure, requirements and the operational procedure of the electric vehicle drives and control. Dhirender Kumar | Ameen Uddin Ahmad "Design an electric vehicle using PV array with five-phase permanent magnet synchronous motor." Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-6 , October 2019, URL: https://www.ijtsrd.com/papers/ijtsrd29173.pdf Paper URL: https://www.ijtsrd.com/engineering/electrical-engineering/29173/design-an-electric-vehicle-using-pv-array-with-five-phase-permanent-magnet-synchronous-motor/dhirender-kumar
This thesis proposes advanced control strategies for photovoltaic and energy storage power conversion systems to improve energy harvesting, ensure grid compliance, and provide grid support. The first improvement extends the input voltage range of inverters to increase solar energy capture. A voltage-reactive power control strategy and modified modulation technique provide a lower voltage limit. Maximizing semiconductor utilization achieves a higher limit, improving energy capture by 30%. A second strategy integrates grid fault detection within control algorithms to enable compliance. The final contribution provides frequency and voltage support functions for grid stability beyond existing standards. Combined, these approaches develop high-performance, efficient, safe and grid-friendly solar power solutions.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
This document describes the design of a battery charging circuit for a solar photovoltaic (SPV) system. It proposes using an intelligent fuzzy logic based discrete proportional-integral-derivative (FL-DPID) maximum power point tracking (MPPT) algorithm to operate the SPV panel at its maximum power point (MPP) under varying solar irradiance. The output of the FL-DPID MPPT-driven boost converter is used to charge a battery via an optimal proportional-integral-derivative (O-PID) controlled buck converter. The O-PID controller parameters are obtained using genetic algorithm to provide constant voltage and current for effective battery charging. A 200W prototype SPV panel is simulated in MATLAB/Simul
This paper provides a new approach to reducing high-order harmonics in 400 Hz inverter using a three-level neutral-point clamped (NPC) converter. A voltage control loop using the harmonic compensation combined with NPC clamping diode control technology. The capacitor voltage imbalance also causes harmonics in the output voltage. For 400 Hz inverter, maintain a balanced voltage between the two input (direct current) (DC) capacitors is difficult because the pulse width modulation (PWM) modulation frequency ratio is low compared to the frequency of the output voltage. A method of determining the current flowing into the capacitor to control the voltage on the two balanced capacitors to ensure fast response reversal is also given in this paper. The combination of a high-harmonic resonator controller and a neutral-point voltage controller working together on the 400 Hz NPC inverter structure is given in this paper.
This document compares buck and boost converter topologies for use in photovoltaic power systems to maximize power extraction from solar panels. It finds that the boost converter is better suited as the PV interface as it can maintain continuous input current flow to the load. Simulation results show that a boost converter tracking the maximum power point of a PV array can increase the output voltage from 17.1V to 24.9V and deliver 60W of power to the load. The boost converter also performs well under varying temperature and solar irradiation conditions according to the simulations.
Operational performance of a PV generator feeding DC shunt and induction moto...IJECEIAES
This paper presented the transient and operational behavior of a parallel Combination of DC Shunt Motor and IM fed by a photovoltaic generator at different solar irradiance levels. The maximum power point of current/voltage (I/V) characteristic of the PV generator was achieved for different solar intensities, by utilizing an open circuit voltage method. The nonlinear operational behavior of (I/V) characteristics of the PV generator at various solar intensities and the magnetization curve of the ferromagnetic material of the DC shunt motor were both modeled by high order polynomial mathematical expressions. The study investigated the response of the system at different solar irradiance levels and changing the torque loads for both motors and then following step change in solar intensity levels with fixed loading torques for both motors. All numerical simulations were executed using MATLAB software.
Modeling Simulation and Design of Photovoltaic Array with MPPT Control Techni...IJAPEJOURNAL
The Renewable energy is important part of power generation system due to diminution of fossils fuel. Energy production from photovoltaic (PV) is widely accepted as it is clean, available in abundance, & free of cost. This paper deals with modeling of PV array including the effects of temperature and irradiation. The DC-DC converter is used for boosting low voltage of the PV array to high DC voltage. Since the efficiency of a PV array is around 13% which is low, it is desirable to operate the module at the peak power point to improve the utilization of the PV array. A maximum power point tracker (MPPT) is used for extracting the maximum power from the solar PV array and transferring that power to the load. To track maximum power point (MPP) Perturb & Observe (P & O) algorithm is used which periodically perturbs the array voltage or current and compare PV output power with that of previous perturbation cycle which controls duty cycle of DC-DC converter. The entire system is simulated in MATLAB /SIMULINK and simulation results are presented.
This summary provides the key details from the document in 3 sentences:
The document presents a study on implementing an anti-windup PI controller for speed control of an induction machine using direct torque control (DTC) strategy. Simulation and experimental results showed that the proposed anti-windup PI controller improved the dynamic step response of speed control in terms of overshoot compared to a conventional PI controller. The validity of the control strategy was verified by implementing the anti-windup PI controller on a dSPACE 1104 board to control the speed of a 1.5 kW induction machine.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
This document presents research on using a genetic algorithm to optimize switching angles in multilevel inverters in order to reduce total harmonic distortion. Specifically:
1) A genetic algorithm is developed and used to determine optimal switching angles for 7-level and 9-level cascaded inverters to eliminate low order harmonics and minimize total harmonic distortion, without needing to solve nonlinear equations.
2) Simulation results show the genetic algorithm approach produces switching angles that generate voltage waveforms with very low 5th, 7th, and 11th harmonics for the 9-level inverter and low 5th and 7th harmonics for the 7-level inverter.
3) The 9-level inverter achieves
Este documento presenta una lista de conectores discursivos en español utilizados para conectar ideas y párrafos dentro de un texto. Incluye conectores para añadir información como "además", "también" o "encima"; conectores de causa-efecto como "por tanto" o "por consiguiente"; conectores de oposición como "pero" o "sin embargo"; y conectores para ejemplificar como "por ejemplo". Finalmente, recuerda la importancia de los conectores discursivos para la coherencia y cohesión
Este documento describe las características de la computación en la nube. Explica que es un sistema basado en internet y centros de datos remotos para gestionar servicios de información y aplicaciones sin necesidad de instalarlos localmente. También discute los tipos de nubes, incluyendo nubes públicas, privadas e híbridas.
This document contains personal information including a name, student ID number, and date for an individual. It also includes a string of random characters that is likely an identification code or password. In summary, the document appears to be records containing private identification information for an individual.
Costlocker.com is an online application that provides financial management tools for small agencies with 5 to 50 employees to better understand project profitability and whether business tenders are profitable. It offers time tracking, agency information systems, and business intelligence data and benchmarking capabilities to help small agencies increase profits by over 30% and spend 3 times less time on financial administration compared to using spreadsheets alone.
Estrategias digitales para la gestión culturalMariuxi Àvila
Este documento presenta estrategias digitales para la gestión cultural, incluyendo herramientas como el marketing digital, la optimización en buscadores y redes sociales, y tendencias como el diseño gráfico y proyectos de crowdfunding exitosos. Cubre temas como conceptos clave de Internet, generaciones de usuarios digitales, casos de éxito y una bibliografía de recursos adicionales.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Real Time Implementation of Variable Step Size Based P&O MPPT for PV Systems ...IJPEDS-IAES
Nowadays Solar energy is an important energy source due to the energy crisis and environment pollution. Maximum power point tracking (MPPT) algorithm improves the utilization efficiency of a photovoltaic systems. In this paper an improved P&O MPPT algorithm is developed and simulated using MATLAB / SIMULINK to control the DC/DC buck converter. The obtained simulink model is also verified using dspace tool. Both the simulated and experimental results are validated by also comparing them with conventional MPPT methods. The performance measures show the increase in the efficiency of PV system by the proposed model.
A Integrated Technique of SIDO PFC Fly back Converter in power systemIJMTST Journal
Energy saving is the major international efforts to control down the global warming .Power electronics based devices has being improving day by day for saving the electrical energy in the power grids. The govt. of India is also contributing several projects based on energy conservation. The Designing of a single-inductor dual output (SIDO) fly-back power factor correction (PFC) converter is proposed, in which the PFC and power conversion are done at the same time, multiplexing of a single-inductor is implemented through which each output can be regulated independently. The converter will be operating under in critical conduction mode (CRM). A SIDO PFC converter is a system of dual efficient DC output obtained from the AC source, it can also be replaced by solar panel and our system is capable of running a dc motor also, fly back converter can be used in both ac-dc and dc-dc conversion process. The efficiency along with power factor, total harmonic distortion (THD), settling time and output accuracy of this converter will be improved by implementing the neural network as controllers in the system
MPPT oscillations minimization in PV system by controlling non-linear dynamic...IJECEIAES
Solar PV power generation has achieved rapid growth in developing countries which has many merits such as absence of noise, longer life, no pollution, less time for installation, and ease of grid interface. A maximum power point tracking circuit (MPPT) consists of DC-DC power electronics converters that are used to improve the energy attainment from solar PV array. This paper presents a detailed analysis to control of chaos, a non-linear dynamic in SEPIC DC-DC converter interfaced solar PV system, to minimize the oscillations near to MPP. In SEPIC DC-DC converter, the input inductor current is continuous and capable of sweeping the whole I-V curve of a PV module from open circuit voltage (V oc ) to short circuit current (I sc ) operating points. To trace the true maximum power point and to nullify the oscillations near to MPP, the yield output voltage needs to ensure period-1 operation.
Incremental Conductance MPPT Algorithm for PV System Implemented Using DC-DC ...IJERA Editor
This document discusses implementing an incremental conductance maximum power point tracking (MPPT) algorithm for a photovoltaic (PV) system using DC-DC buck and boost converters. It provides mathematical models and analysis of the buck and boost converters. The incremental conductance MPPT algorithm is based on matching the source impedance of the PV panel to the load impedance to extract maximum power. The document compares implementing this algorithm with a buck versus boost converter for transferring power from the PV panel to the load.
A multi converter based pure solar energy system with high efficiency mppt conIAEME Publication
1) The document proposes a new multi-converter based pure solar energy system with a high efficiency MPPT controller.
2) It uses a hybrid bridge resonant DC-DC converter to track the maximum power point from the solar panels and regulate the output voltage. A bidirectional DC-DC converter is used to charge and discharge the battery.
3) A multi-level inverter converts the DC output to AC voltage that is regulated and can power standalone loads or be connected to the grid. MATLAB simulations were used to validate the overall system design.
Modelling and Simulation of Perturbation and Observation MPPT Algorithm for P...IJMTST Journal
Renewable energy has too much attention over past few years specially solar energy. Photovoltaic is a
technique in which solar energy is converted into electrical energy (DC). As we know conventional energy is
limited so we are trying to improve the uses of renewable energy like solar energy, hydel energy, and tidal
energy. A single cell of photovoltaic has still very low output so it is necessary to improve the performance
and reduce the cost. The model of photovoltaic presented in this paper can be used to visualize its output
characteristics which are I-V characteristics and P-V characteristics under different irradiation level and
temperature. In this paper MPPT- Maximum power point tracking is a method in which changing the ratio
between current and voltage delivered to get power by tracking one maximum power point from array input.
Here the system developed by combining (PV) photovoltaic module and DC-DC boost converter. There is a
detail discussion of DC-DC boost converter and perturbation and observation (P&O) MPPT algorithm.
Perturbation and observation (P&O) principal is to create a perturbation by increasing or decreasing the duty
cycle of DC-DC boost converter and observe the change in PV output. Used algorithm is to track MPPs because
it performance very small control under rapid changes. This is experimentally verified by modelling the PV
system with MPPT algorithm in MATLAB/Simulink Software.
Performance of Maximum Power Point Tracking Algorithm based Photovoltaic Arra...IRJET Journal
This document summarizes a research paper that models and simulates a hybrid microgrid system interconnected with a photovoltaic array and utility grid. It uses a DC-DC boost converter controlled by an incremental conductance maximum power point tracking algorithm connected to the photovoltaic panels. A three-phase three-level inverter with IGBT switches is used to convert the DC power to AC power that is synchronized to the utility grid using a phase locked loop control algorithm. The system is simulated under varying sunlight conditions and the desired results are obtained, demonstrating effective maximum power point tracking and grid integration of solar power.
Drive Applications of Fuzzy Logic Controlled Interleaved Boost Converter for ...EECJOURNAL
This document presents a proposed interleaved boost converter controlled by a fuzzy logic controller for maximum power point tracking in solar photovoltaic systems. The interleaved boost converter is used to extract power from the solar panel with reduced ripple losses and greater efficiency, obtaining maximum power output. The fuzzy logic controller controls the converter operation to minimize power losses. Mathematical modeling of the solar panel, interleaved boost converter, and fuzzy logic controller is presented. Simulation results show that the proposed system provides constant, high voltage output while eliminating ripples and increasing efficiency compared to conventional methods. This enables extraction of maximum power from the solar panel under varying conditions.
This work highlights a modular power conditioning system (PCS) in photovoltaic (PV) applications which consists with a DC-DC converter. The converter is able to regulate and amplify the input DC voltage produced by the PV panal. The implementation of Mosfet as bidirectional switch on the converter yields greater conversion ratio and better voltage regulation than a conventional DC-DC step up converter and PWM resonant converter. It also reduces the switching losses on the output DC voltage of the converter, as the MOSFET switches on primary winding of converter switch on under ZVS conditions. The proposed resonant converter has been designed, with the modification of series resonant converter and PWM boost converter that utilizes the high frequency of AC bidirectional switch to eliminate the weaknesses of used converters. The topology of the proposed converter includes the mode of operations, designing procedure and components selection of the new converter elements. This topology provides a DC output voltage to the inverter at range of about 120Vac-208 Vac.
IMPLEMENTATION OF PERTURB AND OBSERVE MPPT OF PV SYSTEM WITH DIRECT CONTROL M...eeiej_journal
The Maximum Power Point Tracking (MPPT) is a technique used in power electronic circuits to extract
maximum energy from the Photovoltaic (PV) Systems. In the recent decades, photovoltaic power generation
has become more important due its many benefits such as needs a few maintenance and environmental
advantages and fuel free. However, there are two major barriers for the use of PV systems, low energy
conversion efficiency and high initial cost. To improve the energy efficiency, it is important to work PV
system always at its maximum power point. So far, many researches are conducted and many papers were
published and suggested different methods for extracting maximum power point. This paper presents in
details implementation of Perturb and Observe MPPT using buck and buck-boost Converters. Some results
such as current, voltage and output power for each various combination have been recorded
This paper deals with an advanced design for a pump powered by solar energyto supply agricultural lands with water and also the maximum power point is used to extract the maximum value of the energy available inside the solar panels and comparing between techniques MPPT such as Incremental conductance, perturb & observe, fractional short current circuit, and fractional open voltage circuit to find the best technique among these. The solar system is designed with main parts: photovoltaic (PV) panel, direct current/direct current (DC/DC) converter, inverter, filter, and in addition, the battery is used to save energy in the event that there is an increased demand for energy and not to provide solar radiation, as well as saving energy in the case of generation more than demand. This work was done using the matrix laboratory (MATLAB) simulink program.
ZVZCS Based High Frequency Link Grid Connected SVM Applied Three Phase Three ...IAES-IJPEDS
This article proposes a newly proposed highly effective Zero Voltage and Zero Current switching based Front end converter with a High Frequency Transformer with a Three Phase Three Level Diode Clamped Inverter in photovoltaic applications. The switching scheme is implemented in MATLAB/ Simulink condition. ZVZCS condition is achieved. This type of converter shows high efficiency and very negligible switching loss. Finally ZVZCS based High Frequency Link Diode Clamped Inverter is connected to Grid. An MCI optimized Current controller is used with SVM switching technique. In This article, responses with three types of controllers (I, PI, PID) have been examined and compared. Simulation results show the effectiveness, and validity of this technique.
This work includes the establishment of a Photovoltaic system connected to the grid by means of an inverter. The fundamental goal of the work is to incorporate an advanced active power flow management scheme in order to adopt load at any weather condition along with the advantage of maximum active power flow and zero harmonics from PV inverter to the grid. The outcome of analysis and control design of grid connected PV inverter using a Proportional-Integral (PI) control technique is based on synchronous dq rotating reference frame so as to achieve maximum output voltage and record the active power. It has been observed that the model provides a better rate of stability as compared to the existing topology.
The main objective of this research work is to develop KY conveter topology for renewable energy sources.Solar energy is the readily available and is the cheapest form of energy. It is non-polluting and environment friendly. The development of high static gain DC-DC converters is an important research area due to the crescent demand of this technology for several applications supplied by low DC output voltage power sources. It is used to provide the uninterruptable power supply and battery powered to the system. So here, step-up DC-DC converters based on the KY converter are proposed for LED lighting systems. The proposed topologies present high voltages and high efficiency for low input voltage and high output voltage applications. The simulation results of the proposed topology have been presented using MATLAB/SIMULINK software.
Performance numerical evaluation of modified single-ended primary-inductor c...IJECEIAES
Single-ended primary-inductor converter (SEPIC) was considered a good alternative to a DC-DC converter for photovoltaic (PV) systems. The SEPIC converter can operate with an input voltage greater or less than the regulated output voltage, or as a step-up or step-down. As a step-up converter, SEPIC boosts PV voltage to specific levels. However, gain limitation and voltage stress continue to reduce the efficiency of conventional SEPIC converters. Because of this, researchers created a modified SEPIC converter to improve performance. In this paper, six modified SEPIC converters were compared and evaluated. To compare fairly, all modified SEPIC converters are nonisolated and use a single switch. Power simulator (PSIM) software was used to simulate each converter with a BISOL BMO-250 PV module and maximum power point tracking (MPPT) P&O controller. The converter with the highest static voltage gain and lowest duty cycle has been identified. It results in up to ten times voltage increment with a 0.8-duty ratio. All topologies have the same voltage stress, with maximum and minimum values of 30.1 and 29.5 V, respectively. On the other hand, each topology produces different average efficiencies, with the highest and lowest efficiency at 99.5% and 97.2%, respectively.
IRJET- High Accurate Sensorless Dual Axis Solar Tracking System Controlle...IRJET Journal
1. The document describes a high accurate sensorless dual axis solar tracking system controlled by a maximum power point tracker (MPPT) for microgrid applications.
2. An MPPT uses an algorithm like perturb and observe to adjust the operating point of a photovoltaic system to maximize power extraction from the solar panels despite changing temperature and irradiance conditions.
3. The proposed system uses a boost converter controlled by an MPPT to boost the voltage from the PV panels, and a dual axis solar tracker to optimize the panel orientation for maximum sunlight exposure.
IRJET- VSI based Standalone PV Generation System using Super-Capacitor to Dri...IRJET Journal
This document describes a standalone photovoltaic system that uses a solar panel, DC-DC converter, and single-phase inverter to drive an induction motor. The solar panel converts sunlight to electrical energy in the form of DC voltage. A DC-DC converter boosts the voltage as needed. An inverter then converts the DC to AC voltage using pulse width modulation to power the induction motor. A capacitor bank at the output of the DC-DC converter filters the voltage before it reaches the inverter. The system provides a reliable electricity source for remote and rural areas using a renewable energy source that has no emissions or noise.
Analysis and Implement of Hybrid ANN PandO Based MPPT Controller to Enhance E...ijtsrd
Solar energy is a potential energy source in Myanmar and its application is ever increasing. In solar PV application, the photovoltaic module is needed to harvest this kind of energy. The PV module exhibit nonlinear I–V and P– V characteristics. The maximum power produced varies with both irradiance and temperature. The maximum efficiency is achieved when PV works at its maximum power point which can be obtained by using suitable MPPT algorithm. Most of PV systems use conventional MPPT methods such as incremental conductance IC and perturb and observe P and O . With the advanced in control technology, the intelligent control techniques are commonly used in all areas. A conventional MPPT controller is used to maximise the conversion efficiency under normal conditions but fails in abnormal conditions. This paper proposes an intelligent ANN PandO MPPT controller for the Boost converter that utilises the effective regions of both ANN and PandO methods to identify the global maximum point in order to improve the conversion efficiency of a PV system and a comparative simulation study of three MPPT algorithms specifically i perturb and observe, ii artificial neural network ANN , and iii NN – PandO. MATLAB SIMULINK software is used to test how well the controller works in unusual situations and compare it to its individual counterparts. Shubham Dwivedi | Poonam Jounjare "Analysis and Implement of Hybrid ANN - P&O Based MPPT Controller to Enhance Efficiency of Photovoltaic System" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-6 | Issue-5 , August 2022, URL: https://www.ijtsrd.com/papers/ijtsrd50589.pdf Paper URL: https://www.ijtsrd.com/engineering/electrical-engineering/50589/analysis-and-implement-of-hybrid-ann--pando-based-mppt-controller-to-enhance-efficiency-of-photovoltaic-system/shubham-dwivedi
Maruthi Prithivirajan, Head of ASEAN & IN Solution Architecture, Neo4j
Get an inside look at the latest Neo4j innovations that enable relationship-driven intelligence at scale. Learn more about the newest cloud integrations and product enhancements that make Neo4j an essential choice for developers building apps with interconnected data and generative AI.
Best 20 SEO Techniques To Improve Website Visibility In SERPPixlogix Infotech
Boost your website's visibility with proven SEO techniques! Our latest blog dives into essential strategies to enhance your online presence, increase traffic, and rank higher on search engines. From keyword optimization to quality content creation, learn how to make your site stand out in the crowded digital landscape. Discover actionable tips and expert insights to elevate your SEO game.
HCL Notes and Domino License Cost Reduction in the World of DLAUpanagenda
Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-and-domino-license-cost-reduction-in-the-world-of-dlau/
The introduction of DLAU and the CCB & CCX licensing model caused quite a stir in the HCL community. As a Notes and Domino customer, you may have faced challenges with unexpected user counts and license costs. You probably have questions on how this new licensing approach works and how to benefit from it. Most importantly, you likely have budget constraints and want to save money where possible. Don’t worry, we can help with all of this!
We’ll show you how to fix common misconfigurations that cause higher-than-expected user counts, and how to identify accounts which you can deactivate to save money. There are also frequent patterns that can cause unnecessary cost, like using a person document instead of a mail-in for shared mailboxes. We’ll provide examples and solutions for those as well. And naturally we’ll explain the new licensing model.
Join HCL Ambassador Marc Thomas in this webinar with a special guest appearance from Franz Walder. It will give you the tools and know-how to stay on top of what is going on with Domino licensing. You will be able lower your cost through an optimized configuration and keep it low going forward.
These topics will be covered
- Reducing license cost by finding and fixing misconfigurations and superfluous accounts
- How do CCB and CCX licenses really work?
- Understanding the DLAU tool and how to best utilize it
- Tips for common problem areas, like team mailboxes, functional/test users, etc
- Practical examples and best practices to implement right away
Observability Concepts EVERY Developer Should Know -- DeveloperWeek Europe.pdfPaige Cruz
Monitoring and observability aren’t traditionally found in software curriculums and many of us cobble this knowledge together from whatever vendor or ecosystem we were first introduced to and whatever is a part of your current company’s observability stack.
While the dev and ops silo continues to crumble….many organizations still relegate monitoring & observability as the purview of ops, infra and SRE teams. This is a mistake - achieving a highly observable system requires collaboration up and down the stack.
I, a former op, would like to extend an invitation to all application developers to join the observability party will share these foundational concepts to build on:
In the rapidly evolving landscape of technologies, XML continues to play a vital role in structuring, storing, and transporting data across diverse systems. The recent advancements in artificial intelligence (AI) present new methodologies for enhancing XML development workflows, introducing efficiency, automation, and intelligent capabilities. This presentation will outline the scope and perspective of utilizing AI in XML development. The potential benefits and the possible pitfalls will be highlighted, providing a balanced view of the subject.
We will explore the capabilities of AI in understanding XML markup languages and autonomously creating structured XML content. Additionally, we will examine the capacity of AI to enrich plain text with appropriate XML markup. Practical examples and methodological guidelines will be provided to elucidate how AI can be effectively prompted to interpret and generate accurate XML markup.
Further emphasis will be placed on the role of AI in developing XSLT, or schemas such as XSD and Schematron. We will address the techniques and strategies adopted to create prompts for generating code, explaining code, or refactoring the code, and the results achieved.
The discussion will extend to how AI can be used to transform XML content. In particular, the focus will be on the use of AI XPath extension functions in XSLT, Schematron, Schematron Quick Fixes, or for XML content refactoring.
The presentation aims to deliver a comprehensive overview of AI usage in XML development, providing attendees with the necessary knowledge to make informed decisions. Whether you’re at the early stages of adopting AI or considering integrating it in advanced XML development, this presentation will cover all levels of expertise.
By highlighting the potential advantages and challenges of integrating AI with XML development tools and languages, the presentation seeks to inspire thoughtful conversation around the future of XML development. We’ll not only delve into the technical aspects of AI-powered XML development but also discuss practical implications and possible future directions.
Threats to mobile devices are more prevalent and increasing in scope and complexity. Users of mobile devices desire to take full advantage of the features
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1. R. Suganya et al. Int. Journal of Engineering Research and Application
ISSN : 2248-9622, Vol. 3, Issue 5, Sep-Oct 2013, pp.787-792
RESEARCH ARTICLE
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OPEN ACCESS
Photovoltaic Micro Inverter System Using Maximum Power Point
Tracking
R. Suganya1, K. Arulselvi 2, P. Pughazhendiran3, S. Meenakshi4
1,2
Associate Professor, IFET College of Engineering, Villupuram-605108.
Associate Professor and Head, IFET College of Engineering, Villupuram-605108.
4
Former Associate Professor, IFET College of Engineering, Villupuram-605108.
3
Abstract
In this paper grid connected boost photovoltaic micro inverter system using maximum power point tracking is
presented. First the photovoltaic module is analyzed using SIMULINK software. The main aim of the Paper is
the boost converter is to be used along with a Maximum Power Point Tracking control mechanism. The MPPT
is responsible for extracting the maximum possible power from the photovoltaic and feed it to the load via the
boost converter which is used to steps up the voltage to required magnitude. Both the boost converter and the
solar cell are modeled using Sim Power Systems blocks. Here the voltage source inverter is cascaded and it
injects sinusoidal current to the grid. The dynamic stiffness is obtained when load or solar illumination changing
rapidly. This investigates in detail concept of Maximum PowerPoint Tracking [MPPT] which significantly
increases the efficiency of the solar photovoltaic system.
Index Terms-Boost converter, grid connected photovoltaic [PV] system, Voltage Source Inverter, maximum
power point tracking [MPPT], PWM generator.
I.
INTRODUCTION
One of the major concerns in the power sector
is the day-to-day increasing power demand but the
unavailability of enough resources to meet the power
demand using the conventional energy sources.
Demand has increased for renewable sources of energy
to be utilized along with conventional systems to meet
the energy demand. Renewable sources like wind
energy and solar energy are the prime energy sources
which are being utilized in this regard. Solar energy is
abundantly available that has made it possible to
harvest it and utilize it properly. Solar energy can be a
standalone generating unit or can be a grid connected
generating unit depending on the availability of a grid
nearby. Thus it can be used to power rural areas where
the availability of grids is very low. Another advantage
of using solar energy is the portable operation
whenever wherever necessary. In order to tackle the
present energy crisis one has to develop an efficient
manner in which power has to be extracted from the
incoming solar radiation. The use of the newest power
control mechanisms called the Maximum Power Point
Tracking [MPPT] algorithms has led to the increase in
the efficiency of operation of the solar modules and
thus is effective in the field of utilization of renewable
sources of energy [3], [8].In this Paper boost converter
is cascaded by an inverter. Here the PWM control
technique adopted for voltage source inverter] [4]- [6].
The boost converter is incorporated as the dc
– dc conversion stage for grid connected photovoltaic
micro inverter system. In order achieve low cost, easy
control, high efficiency and high reliability the boost
converter is introduced to interface with the low
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voltage photovoltaic module .here the full bridge
inverter is incorporated it inject the sinusoidal current
to the grid. In this Paper MPPT is performed by the
boost converter. there are different types of algorithm
is implemented. It includes perturb & observe method,
incremental conductance method, ripple correlation
method, reduced current sensor method, etc each
method provide the different steady state MPPT
efficiency , transient tracking speed, and control
complexity[12].
In this paper an optimal P & Q method is
proposed. The MPPT Algorithm using step changed
perturbations on the PV voltage and current or
converter duty cycle periodically may sometimes cause
the problems such as magnetic saturation, inrush
current, LC oscillation. In this paper the dynamics of
boost converter carefully analyzed for guiding the
MPPT design. For the main purpose of fast tracking
and high efficiency, the power voltage [P-V] curve of
the PV module is divided into three different operation
zones, where the MPPT step size is varied accordingly.
II.
MODELLING OF SOLAR CELL
Solar cell is the building block of a solar
panel. A photovoltaic module is formed by connecting
many solar cells in series and parallel. Considering
only a single solar cell; it can be modeled by utilizing a
current source, a diode and two resistors. This model is
known as a single diode model of solar cell. Two diode
models are also available but only single diode model
is considered here [1], [2], [4], [7], [9] and [10]
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transformer. The main components of a boost
converter are an inductor, a diode and a high frequency
switch. These in a co-ordinate manner supply power to
the load at a voltage greater than the input voltage
magnitude. The control strategy lies in the
manipulation of the duty cycle of the switch which
causes the voltage change [11] and [12]. There are two
modes of operation of a boost converter. Those are
based on the closing and opening of the switch. The
first mode is when the switch is closed; this is known
as the charging mode of operation. The second mode is
when the switch is open; this is known as the
discharging mode of operation [12].
Fig 1: Single diode model of a solar cell
The output current from the photovoltaic array is
I=Isc – Id
Id= Io [eqVd/kT - 1]
[1.1]
[1.2]
where Io is the reverse saturation current of the
diode, q is the electron charge, Vd is the voltage across
the diode, k is Boltzmann constant [1.38 * 10-19 J/K]
and T is the junction temperature in Kelvin [K] From
eq1.1 and 1.2
I = Isc – Io [eqVd/kT - 1]
Using suitable approximations,
[1.3]
I = Isc – Io [eq[V+IRs]/nkT] - 1]
[1.4]
where, I is the photovoltaic cell current, V is the
PV cell voltage, T is the temperature [in Kelvin] and n
is the diode ideality factor. In order to model the solar
panel accurately we can use two diode model but in
our Paper our scope of study is limited to the single
diode model. Also, the shunt resistance is very high
and can be neglected during the course of our study.
Fig 2: PV I-V curve of a solar cell at given temperature
and solar irradiation
III.
BOOST CONVERTER TOPOLOGY
Conventional boost converter topology for
grid connected PV system is depicted in fig .1 Boost
converter steps up the input voltage magnitude to a
required output voltage magnitude without the use of a
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Fig 3: Boost converter
IV.
OVERVIEW OF DC-DC CONVERTER
DC-DC conversion technology is a major
subject area in the field of power electronic and power
engineering and drives. This conversion technique is
widely adopted in industrial application and computer
hardware circuits. The simplest DC-DC conversion
technology is a voltage divider, potentiometer and so
on. But the effect of these simple conversion
techniques resulted in poor efficiency due to fact that
transfer output voltage is lower than the input voltage.
According to [7], there have been more than 500
prototypes of DC –DC converter developed for more
than 60 years. All new topology and presently existing
DC-DC converters were design to meet some sort of
industrial or commercial applications. They are usually
called by their function, for example, Buck converter,
boost converter, buck-boost converter and zeroswitching [ZCS] and zero voltage switching [ZVS]
converters which are used to reduce, increase voltage
<.respectively. DC-DC converters [e.g. boost, buck,
buck boost, etc] are also implemented with other
devices as maximum power point trackers [MPPT] for
photovoltaic module, for example in [8] a real time
MPPT employing a DC-DC boost converter operating
in conduction mode is used. It also includes a passive
non dissipative turn on turn off snubber in order to
achieve high efficiency and to reduce EMI level due to
soft switching.
V.
V BOOSTCONVERTER ANALYSIS
The designed DC-DC boost converter is
connected between the photovoltaic module and the
load so as to enable the module operates at maximum
power at all time. Boost converter is made of up four
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3. R. Suganya et al. Int. Journal of Engineering Research and Application
ISSN : 2248-9622, Vol. 3, Issue 5, Sep-Oct 2013, pp.787-792
elements as shown below in figure 1, they include the
inductance, diode, capacitor and M0SFET. As the
name of the converter implies, it steps up the input
voltage which makes the output voltage greater than
the input voltage. The converter is control through the
MOSFET which act as a switch. The ON and OFF of
the switch [MOSFET] controls the output voltage by
changing the voltage of the inductance so as to enable
the photovoltaic module power the load at maximum
voltage. The operation of the converter is analyzed in
different operating condition. The operation of the
converter is analysis in continuous conduction mode.
ΔI l / Δt = Vi / L
[1]
At the end of the On-state, the increase of IL is given
by:
[2]
D is the duty cycle. It represents the fraction of the
commutation period T during which the switch is On.
Therefore D ranges between 0 [S is never on] and 1 [S
is always on]. During the Off-state, the switch S is
open, so the inductor current flows through the load.
By considering there was zero voltage drops in the
diode, and a capacitor large enough for its voltage to
remain constant, the derivation of I L is
Vi – Vo = L dIl / dt
[3]
Therefore, the variation of Il during the Off-period is
ΔI l off = [ [Vi-Vo][1-D] T] / L
[4]
As we consider that the converter operates in
steady-state conditions, the amount of energy stored in
each of its components has to be the same at the
beginning and at the end of a commutation cycle. In
particular, the energy stored in the inductor is given
by:
E = ½ L . Il2
[5]
VI.
DC - DC BOOST CONVERTER
ANALYSIS
As stated above that DC-DC boost converter
is used as photovoltaic interface and is design to boost
the output voltage to 24V to meet the requirement of
the load [led base light]. Based on this fact some
specification Therefore, the inductor current has to be
the same at the beginning and the end of the
commutation cycle. This can be written as
ΔI l on + ΔI l off = 0
[6]
Substituting ΔIL on and ΔIL off by their
expressions yields:
ΔI l on + ΔI l off = [[Vi .D.T] / L] + [[Vi -Vo].[1D]T]/L=0
[7]
This can be written as:
[8]
This in turns reveals the duty cycle to be
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[9]
The boost converter was assumed to meet the load
demand, see table 3 and boost converter design
equations as listed in equation [5], [6] [7] and [8].
Equation [1] represent the boost converter transfer
function where Vo = output voltage,
Vi = input
voltage and D represent duty cycle. Also Fs= switching
frequency, Lo =boost inductance and Co represent
output capacitance.
V0/Vi=1/[1-D]
[10]
ΔI=Vi*D/FS*L
[11]
ΔV=I0*D/FS*C
[12]
Pi = Po = Vi*Ii = Vo*Io [Assume 100% efficiency of
converter]
VII.
MAXIMUM POWER POINT
TRACKER [MPPT]
A maximum power point tracker is a highefficiency DC-DC converter, which functions as an
optimal electrical load for photovoltaic cell, most
commonly used for a solar panel or array and converts
the power to a voltage or current level which is more
suitable to whatever load the system is design to drive.
PV cells have a single operating point where the values
of current and voltage result in a maximum power
output for the cell [10]. Maximum power point tracker
[MPPT] is basically an electronic system that controls
the duty circuit of the converter to enable the
photovoltaic module operate at maximum operating
power at all condition and not some sort of mechanical
tracking system that physically rotate the photovoltaic
modules to face sunlight directly. The advantages of
MPPT regulators are greatest during cloudy or hazy
days, cold weather or when the battery is deeply
discharged. There are different types of maximum
power point tracker methods developed over the years
and they are listed below as follows [1] Perturb and
observe method, [2]Incremental conductance method,
[3] Artificial neutral network method, [4] Fuzzy logic
method, [5] Peak power point method, [6] Open circuit
voltage method, and [7] Temperature method etc. The
MPPT plays a very significant role because without the
MPPT the desire output electrical power will not be
achieve with changing weather conditions.
VIII.
PQ ALGORITHM
The MPPT control employed at the converter
side. Typically the MPPT function block in a PV
converter system periodically modifies the tracking
reference of the PV voltage, PV current, or modulating
index, or the converter duty cycles.
In many cases, the periodic perturbations
yield step change dynamic responses power converters.
If the converter dynamics are disregarded in MPPT
control, unwanted transient responses such as LC
resonance, inrush current and magnetic saturation may
take place. Consequently the conversion efficiency can
be deteriorated or even malfunction of the converter
may occur.
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4. R. Suganya et al. Int. Journal of Engineering Research and Application
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in fig 6. In above model initially the PV cell generates
74.91V voltage by using MPPT method. It is given to
the boost converter. Based on the duty cycle it is used
to step up the voltage level to 283.6V. Again it is given
to the inverter circuit to get ac voltage of same level.
Fig 6: Simulation circuit for boost converter &
VSI.
Finally it is given to the grid through the LC
filter to get voltage 719.4V & current 0.276A.Depend
on the source variation the MPPT technique is used to
vary the duty cycle of converter.
Fig 4 [a]: I-V curves, Fig 4 [b] P-V curves.
For sake of control simplicity and low cost,
developing a customized MPPT method by carefully
taking care of the boost converter dynamics would be
more desirable.
IX.
FLOW CHART FOR P&Q
ALGORITHM
Fig 7: Output voltage of inverter without filter
Fig 5: Flow chart of the MPPT algorithm
X.
Fig 8: Gate pulse to boost converter
SIMULATION RESULTS
The simulation circuit for merging of boost
converter and VSI by using MPPT algorithm is shown
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5. R. Suganya et al. Int. Journal of Engineering Research and Application
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[3]
[4]
[5]
Fig 9 Closed loop photovoltaic micro inverter
[6]
[7]
Fig 11: Voltage waveform of PV system
[8]
[9]
Fig 12: Output current waveform system
XI.
CONCLUSION
In this paper a combined low cost, high
efficiency inverter and peak power tracker has been
proposed. This converter operates close to the
maximum power point of the photovoltaic array and
forms a DC to AC inverter. Simulation results are
shown. This system shows a wide operating rage of
DC to AC power conversion to utilize the available
power in the photovoltaic systems.
REFERENCES
[1]
[2]
S. B. Kjaer, J. K. Pedersen, and F. Blaabjerg,
“A review of single-phase grid-connected
inverters for photovoltaic modules,” IEEE
Trans. Ind. Appl., vol. 41, no. 5, pp. 1292–
1306, Sep./Oct. 2005
Q. Li and P. Wolfs, “A review of the single
phase photovoltaic module integrated
converter topologies with three different DC
link configurations ,”IEEE Trans. Power
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[10]
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Electron., vol. 23, no. 3, pp. 1320–1333, May
2008.
R. Wai and W.Wang,“Grid-connected
photovoltaic generation system, ”IEEE Trans.
Circuits Syst.-I, vol. 55, no. 3, pp. 953–963,
Apr. 2008.
M. Andersen and B. Alvsten, “200W low cost
module integrated utility interface for
modular photovoltaic energy systems,” in
ProcIEEEIECON, 1995, pp. 572–577.
A. Lohner, T. Meyer, and A. Nagel, “A new
panel-integratable inverter concept for grid
connected photovoltaic systems,” in Proc.
IEEE Int.Symp. Ind. Electron., 1996, pp. 827–
831.
D. C. Martins and R. Demonti, “Grid
connected PV system using two energy
processing stages,” in Proc. IEEE Photovolt.
Spec. Conf., 2002,pp. 1649–1652.
T. Shimizu, K.Wada, and N.Nakamura, “Fly
back-type single-phase utility interactive
inverter with power pulsation decoupling on
the dc input for an ac photovoltaic module
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21, no. 5, pp. 1264–1272, Sep. 2006.
N. Kasa, T. Iida, and L. Chen, “Fly back
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Trans. Ind. Electron.,vol. 52, no. 4, pp. 1145–
1152, Aug. 2005.
Q. Li and P.Wolfs, “A current fed twoinductor boost converter with an integrated
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XII.
BIBILOGRAPHY
R.Suganya was born in Tamilnadu, in 1983. Received
her UG degree in Electrical and Electronics
Engineering from Annai Teresa College of
Engineering in 2005 and PG degree from Thiagarajar
College of Engineering in 2008. Her research interest
includes Power quality issues, Power System
applications, Optimization control, Renewable energy
sources, Electrical Drives. She is currently working at
I.F.E.T College of Engineering as Associate Professor
in Electrical and Electronics Engineering Department.
She is a life member of ISTE
K.Arulselvi was born in Tamilnadu, in
1980.
Received her UG degree in Electrical and Electronics
Engineering from Indian Engineering College in 2001
and PG degree from Annamali University,
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Chidambaram in 2008. Her research interest includes
Power system applications in Power Electronics,
Power quality issues, Renewable energy sources,
FACTS devices. She is currently working at I.F.E.T
College of Engineering as Associate Professor. She is a
life member of ISTE
P.Pugazhendiran was born in Tamilnadu, in 1979.
Received his UG degree in Electrical and Electronics
Engineering from Coimbatore Institute of Technology
(CIT) in 2001 and PG degree from College of
Engineering Guindy (CEG), Anna University, Chennai
in 2009. His research interest includes Power quality
issues, Power Converters, Renewable energy sources,
Electrical Drives. He Published More than 5
Engineering Books. Teaching Experience over a
decade. He published more than 12 National and
International journals. He is currently working at
I.F.E.T College of Engineering as Associate Professor
and head of the department. He is a research scholar in
Anna University Chennai, from July 2012. He is a life
member of ISTE.
S.Meenaksi was born in Tamilnadu, in
1979.
Received her UG degree in Electrical and Electronics
Engineering from Pondicherry Engineering College in
2001 and PG degree from Pondicherry Engineering
College in 2006. Her research interest includes Power
system applications in Power Electronics, Power
quality issues, Electrical Drives, FACTS devices. She
is having 8 years of academic experience and she
published several papers in National and international
conferences as well as in reputed Journals. She is a life
member of ISTE
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