Single active switch power electronics for kilowatt scale capacitive power transfer
•Download as DOCX, PDF•
0 likes•153 views
I3E Technologies, #23/A, 2nd Floor SKS Complex, Opp. Bus Stand, Karur-639 001. IEEE PROJECTS AVAILABLE, NON-IEEE PROJECTS AVAILABLE, APPLICATION BASED PROJECTS AVAILABLE, MINI-PROJECTS AVAILABLE. Mobile : 99436 99916, 99436 99926, 99436 99936 Mail ID: i3eprojectskarur@gmail.com Web: www.i3etechnologies.com, www.i3eprojects.com
Report
Share
Report
Share
Recommended
Power Quality Improvement at Distribution Level for Grid Connected Renewable ...
This document summarizes a research paper that proposes a control method for grid-connected inverters used with renewable energy sources. The control method allows the inverter to perform four functions without additional hardware: 1) transfer active power from the renewable source to the grid, 2) support load reactive power demand, 3) compensate for current harmonics at the point of common coupling, and 4) compensate for current imbalance and neutral current in a 3-phase 4-wire system. Extensive MATLAB simulations demonstrate the inverter's ability to maintain power quality standards without adding hardware costs.
Enhancement in Power Quality With Grid Interconnection of Renewable Energy So...
At present the Renewable energy resources (RES) are being increasingly connected in distribution systems utilizing power electronic converters. This paper presents a novel control strategy for achieving maximum benefits from these grid-interfacing inverters when installed in 3-phase 4-wire distribution systems. The inverter is controlled to perform as a multi-function device by incorporating active power filter functionality. The inverter can thus be utilized as power converter to inject power generated from RES to the grid and shunt APF to compensate current unbalance, load current harmonics, load reactive power demand and load neutral current. All of these functions may be accomplished either individually or simultaneously. With such a control, the combination of grid-interfacing inverter and the 3-phase 4-wire linear/non-linear unbalanced load at point of common coupling appears as balanced linear load to the grid. This new control concept is demonstrated with extensive MATLAB/Simulink simulation studies and validated through digital signal processor-based laboratory experimental results.
A generalized multilevel inverter topology with reduction of total standing v...
This paper presents a new multilevel inverter topology with reduced active switches and total standing voltage. The proposed topology can generate a high number of voltage levels in the symmetric configuration. This topology intuitively generates positive and negative cycles without an additional H-bridge unit, which considerably reduces the total standing voltage of the inverter. A cascaded structure is developed from the proposed topology to create higher voltage levels. To show the novelty of the proposed topology, a thorough comparison between the available and the proposed topologies in terms of the number of switches, standing voltages, and dc-sources is presented. Furthermore, the power loss analysis is carried out for various load values. The feasibility of the proposed nine-level inverter is verified with simulation and experimental results.
A generalized multilevel inverter topology with reduction of total standing v...
This paper presents a new multilevel inverter topology with reduced active switches
and total standing voltage. The proposed topology can generate a high number of voltage levels in the symmetric configuration. This topology intuitively generates positive and negative cycles without an additional H-bridge unit, which considerably reduces the total standing voltage of the inverter. A cascaded structure is developed from the proposed topology to create higher voltage levels. To show the novelty of the proposed topology, a thorough comparison between the available and the proposed topologies in terms of the number of switches, standing voltages, and dc-sources is presented. Furthermore, he power loss analysis is carried out for various load values. The feasibility of the proposed nine-level inverter is verified with simulation and experimental results.
A New Family of Step-up Hybrid Switched- Capacitor Integrated Multilevel Inve...
In the low voltage based renewable systems like PV and Fuel cell applications, the step-up of the output voltage to drive the loads is essential. For this, the integration of switched-capacitor (SC) units with the dc-ac converters will have the potential advantages like improved efficiency, optimal switching devices, small size of passive elements (L and C) as compared with traditional two-stage conversion system (dc/dc converter and dc/ac converter). This paper focuses on a new family of step-up multilevel inverter topologies with switched capacitor integration with dual input voltage sources. With the flexibility of 2 dc sources and switching capacitor circuits, four different topologies have been suggested in this paper with features of high voltage gain, reduced component count, reduced voltage stress and self-voltage balancing of the capacitor while achieving a higher number of levels. A detailed analysis of proposed multilevel inverters has been analyzed with the symmetrical and asymmetrical mode of operations and the associated gain, the number of levels, and other performance indices are presented. An in-depth study of all the topologies has been accomplished in this paper with several comparative studies in terms of components count, voltage gain and cost. The effectiveness and practicability of the suggested topology with 13 level output voltage has been explained by the experimental results obtained from a scale down prototype.
A multi cell 21-level hybrid multilevel inverter synthesizes a reduced number...
A multi-cell hybrid 21-Level multilevel inverter is proposed in this paper. The proposed topology includes two-unit; an H-bridge is cascaded with a modified K-type unit to generate an output voltage waveform with 21 levels based only on two unequal DC suppliers. The proposed topology's advantage lies in the fine and clear output voltage waveforms with high output efficiency. Meanwhile, the high number of output voltage waveform levels generates a low level of distortion and reduces the level of an electromagnetic interface (EMI). Moreover, it reduces the voltage stress on the switching devices and gives it a long lifetime. Also, the reduction in the number of components has a noticeable role in saving size and cost. Regarding the capacitors charging, the proposed topology presents an online method for charging and balancing the capacitor's voltage without any auxiliary circuits. The proposed topology can upgrade to a high number of output steps through the cascading connection. Undoubtedly this cascading will increase the power level to medium and high levels and reduce the harmonics content to a neglectable rate. The proposed system has been tested through the simulation results, and an experimental prototype based on the controller dSPACE (DS-1103) hardware unit used to support the simulation results.
Novel symmetric modular hybrid multilevel inverter with reduced number of sem...
In this paper, by using a modular hybrid structure, a new topology for symmetric multilevel inverters (MLI) with a small number of semiconductors and low voltage stress across switches is proposed. Despite many other topologies, this topology can inherently produce negative levels and zero levels without using the H-bridge. The voltage stress across a particular switch of the proposed MLI is inversely proportional to the number of the switching of that switch in a voltage period. The proposed structure is based on two types of module, that is, the f-module and the e-module. The e-module uses a capacitive voltage divider to double the number of non-zero levels. The voltages of the capacitors are approximately balanced without complex control methods. The basic structure of the proposed topology is formed by connecting the f-module and the e-module in series with each other, and the cascaded topology is developed by cascading multiple f-modules with an e-module. To investigate the proposed topology and proving its practicability, simulation results with MATLAB/Simulink, investigation of the capacitor voltages, loss calculations and experimental results are presented. A comparative study is also performed to show the merit of the new multilevel inverter over other topologies.
A Modified Seven Level Cascaded H Bridge Inverter
Presently Multilevel inverters are extensively used for high-voltage applications and their execution is exceptionally better to that of regular two-level inverters due to minimized harmonic distortion, lower electromagnetic interference and larger DC link voltages. Nevertheless certain shortcomings are faced such as adding in number of components and voltage balancing problem. In order to overcome these, a seven-level hybrid inverter has been proposed. This topology requires a lesser number of power switches which results in the decrease of multifaceted nature, add up to cost and weight of the inverter. Finally this can be able to generate near sinusoidal voltages and approximately fundamental frequency switching. The simulation and the experimental results of a modified cascaded seven level H bridge inverter with and without LC filter are presented for validation.
Recommended
Power Quality Improvement at Distribution Level for Grid Connected Renewable ...
This document summarizes a research paper that proposes a control method for grid-connected inverters used with renewable energy sources. The control method allows the inverter to perform four functions without additional hardware: 1) transfer active power from the renewable source to the grid, 2) support load reactive power demand, 3) compensate for current harmonics at the point of common coupling, and 4) compensate for current imbalance and neutral current in a 3-phase 4-wire system. Extensive MATLAB simulations demonstrate the inverter's ability to maintain power quality standards without adding hardware costs.
Enhancement in Power Quality With Grid Interconnection of Renewable Energy So...
At present the Renewable energy resources (RES) are being increasingly connected in distribution systems utilizing power electronic converters. This paper presents a novel control strategy for achieving maximum benefits from these grid-interfacing inverters when installed in 3-phase 4-wire distribution systems. The inverter is controlled to perform as a multi-function device by incorporating active power filter functionality. The inverter can thus be utilized as power converter to inject power generated from RES to the grid and shunt APF to compensate current unbalance, load current harmonics, load reactive power demand and load neutral current. All of these functions may be accomplished either individually or simultaneously. With such a control, the combination of grid-interfacing inverter and the 3-phase 4-wire linear/non-linear unbalanced load at point of common coupling appears as balanced linear load to the grid. This new control concept is demonstrated with extensive MATLAB/Simulink simulation studies and validated through digital signal processor-based laboratory experimental results.
A generalized multilevel inverter topology with reduction of total standing v...
This paper presents a new multilevel inverter topology with reduced active switches and total standing voltage. The proposed topology can generate a high number of voltage levels in the symmetric configuration. This topology intuitively generates positive and negative cycles without an additional H-bridge unit, which considerably reduces the total standing voltage of the inverter. A cascaded structure is developed from the proposed topology to create higher voltage levels. To show the novelty of the proposed topology, a thorough comparison between the available and the proposed topologies in terms of the number of switches, standing voltages, and dc-sources is presented. Furthermore, the power loss analysis is carried out for various load values. The feasibility of the proposed nine-level inverter is verified with simulation and experimental results.
A generalized multilevel inverter topology with reduction of total standing v...
This paper presents a new multilevel inverter topology with reduced active switches
and total standing voltage. The proposed topology can generate a high number of voltage levels in the symmetric configuration. This topology intuitively generates positive and negative cycles without an additional H-bridge unit, which considerably reduces the total standing voltage of the inverter. A cascaded structure is developed from the proposed topology to create higher voltage levels. To show the novelty of the proposed topology, a thorough comparison between the available and the proposed topologies in terms of the number of switches, standing voltages, and dc-sources is presented. Furthermore, he power loss analysis is carried out for various load values. The feasibility of the proposed nine-level inverter is verified with simulation and experimental results.
A New Family of Step-up Hybrid Switched- Capacitor Integrated Multilevel Inve...
In the low voltage based renewable systems like PV and Fuel cell applications, the step-up of the output voltage to drive the loads is essential. For this, the integration of switched-capacitor (SC) units with the dc-ac converters will have the potential advantages like improved efficiency, optimal switching devices, small size of passive elements (L and C) as compared with traditional two-stage conversion system (dc/dc converter and dc/ac converter). This paper focuses on a new family of step-up multilevel inverter topologies with switched capacitor integration with dual input voltage sources. With the flexibility of 2 dc sources and switching capacitor circuits, four different topologies have been suggested in this paper with features of high voltage gain, reduced component count, reduced voltage stress and self-voltage balancing of the capacitor while achieving a higher number of levels. A detailed analysis of proposed multilevel inverters has been analyzed with the symmetrical and asymmetrical mode of operations and the associated gain, the number of levels, and other performance indices are presented. An in-depth study of all the topologies has been accomplished in this paper with several comparative studies in terms of components count, voltage gain and cost. The effectiveness and practicability of the suggested topology with 13 level output voltage has been explained by the experimental results obtained from a scale down prototype.
A multi cell 21-level hybrid multilevel inverter synthesizes a reduced number...
A multi-cell hybrid 21-Level multilevel inverter is proposed in this paper. The proposed topology includes two-unit; an H-bridge is cascaded with a modified K-type unit to generate an output voltage waveform with 21 levels based only on two unequal DC suppliers. The proposed topology's advantage lies in the fine and clear output voltage waveforms with high output efficiency. Meanwhile, the high number of output voltage waveform levels generates a low level of distortion and reduces the level of an electromagnetic interface (EMI). Moreover, it reduces the voltage stress on the switching devices and gives it a long lifetime. Also, the reduction in the number of components has a noticeable role in saving size and cost. Regarding the capacitors charging, the proposed topology presents an online method for charging and balancing the capacitor's voltage without any auxiliary circuits. The proposed topology can upgrade to a high number of output steps through the cascading connection. Undoubtedly this cascading will increase the power level to medium and high levels and reduce the harmonics content to a neglectable rate. The proposed system has been tested through the simulation results, and an experimental prototype based on the controller dSPACE (DS-1103) hardware unit used to support the simulation results.
Novel symmetric modular hybrid multilevel inverter with reduced number of sem...
In this paper, by using a modular hybrid structure, a new topology for symmetric multilevel inverters (MLI) with a small number of semiconductors and low voltage stress across switches is proposed. Despite many other topologies, this topology can inherently produce negative levels and zero levels without using the H-bridge. The voltage stress across a particular switch of the proposed MLI is inversely proportional to the number of the switching of that switch in a voltage period. The proposed structure is based on two types of module, that is, the f-module and the e-module. The e-module uses a capacitive voltage divider to double the number of non-zero levels. The voltages of the capacitors are approximately balanced without complex control methods. The basic structure of the proposed topology is formed by connecting the f-module and the e-module in series with each other, and the cascaded topology is developed by cascading multiple f-modules with an e-module. To investigate the proposed topology and proving its practicability, simulation results with MATLAB/Simulink, investigation of the capacitor voltages, loss calculations and experimental results are presented. A comparative study is also performed to show the merit of the new multilevel inverter over other topologies.
A Modified Seven Level Cascaded H Bridge Inverter
Presently Multilevel inverters are extensively used for high-voltage applications and their execution is exceptionally better to that of regular two-level inverters due to minimized harmonic distortion, lower electromagnetic interference and larger DC link voltages. Nevertheless certain shortcomings are faced such as adding in number of components and voltage balancing problem. In order to overcome these, a seven-level hybrid inverter has been proposed. This topology requires a lesser number of power switches which results in the decrease of multifaceted nature, add up to cost and weight of the inverter. Finally this can be able to generate near sinusoidal voltages and approximately fundamental frequency switching. The simulation and the experimental results of a modified cascaded seven level H bridge inverter with and without LC filter are presented for validation.
IRJET- A Review on Single Phase to Three Phase Transformer and Three Phas...
This document reviews different types of transformer configurations that can convert single-phase power to three-phase power or three-phase power to five-phase power. It discusses several research papers on single-phase to three-phase converters using rectifiers and inverters as well as novel transformer designs to directly produce a three-phase or five-phase output from a single-phase or three-phase input. The review covers topics like reliability, efficiency and harmonic distortion reduction of different converter topologies.
Ijmer 46061528
This document presents a new control strategy for an islanded microgrid consisting of PV and fuel cell distributed generation units supplying both local and nonlocal unbalanced loads. The control strategy comprises voltage control using a proportional resonance controller, droop-based power sharing, and a negative sequence impedance controller. The voltage controller regulates load voltages while the droop controller shares average power. The negative sequence controller minimizes negative sequence currents in the microgrid lines by adjusting each DG unit's negative sequence output impedance, improving power quality under unbalanced conditions. Time-domain simulations in MATLAB/Simulink validate the control strategy's performance for the PV and fuel cell microgrid.
Three phase transformerless shunt active power filter with reduced switch cou...
Shunt active power filter is the preeminent solution against nonlinear loads, current harmonics and power quality problems. APF topologies for harmonic compensation use numerous high-power rating components and are therefore disadvantageous. Hybrid topologies combining low-power rating APF with passive filters are used to reduce the power rating of voltage source inverter. Hybrid APF topologies for high-power rating systems use a transformer with large numbers of passive components. In this paper, a novel four-switch two-leg VSI topology for a three-phase SAPF is proposed for reducing the system cost and size. The proposed topology comprises a two-arm bridge structure, four switches, coupling inductors, and sets of LC PFs. The third leg of the three-phase VSI is removed by eliminating the set of power switching devices, thereby directly connecting the phase with the negative terminals of the dc-link capacitor. The proposed topology enhances the harmonic compensation capability and provides complete reactive power compensation compared with conventional APF topologies. The new experimental prototype is tested in the laboratory to verify the results in terms of total harmonic distortion, balanced supply current, and harmonic compensation, following the IEEE-519 standard.
Design and simulation of single phase five-level symmetrical cascaded h-bridg...
Multilevel inverter is an effective and practical solution for increasing power demand and reducing harmonics of ac waveforms. Such inverters synthesize a desired output voltage from several levels of dc voltages as inputs. This paper analyzes the performance of five level cascaded H-bridge multilevel inverter with reduce number of power switches. Further by reducing switches and increasing level will reduce filter cost & harmonic content. 5- Level cascaded H-bridge asymmetrical multilevel inverter topology requires 8 switches but in this new multilevel inverter it requires 6 switches in which same multilevel is obtained. Invariably switching losses and cost also reduced. In this .paper only multilevel inverter circuitry will be studied. The performance has been analyzed by the MATLAB/Simulink.
Dynamic modeling of microgrid for grid connected intentional islanding operat...
Microgrid is defined as the cluster of multiple distributed generators (DGs) such as renewable energy sources that supply electrical energy. The connection of microgrid is in parallel with the main grid. When microgrid is isolated from remainder of the utility system, it is said to be in intentional islanding mode. In this mode, DG inverter system operates in voltage control mode to provide constant voltage to the local load. During grid connected mode, the Microgrid operates in constant current control mode to supply preset power to the main grid. The main contribution of this paper is summarized as
1) Design of a network based control scheme for inverter based sources, which provides proper current control during grid connected mode and voltage control during islanding mode.
2) Development of an algorithm for intentional islanding detection and synchronization controller required during grid reconnection.
3) Dynamic modeling and simulation are conducted to show system behavior under proposed method using SIMULINK.
From the simulation results using Simulink dynamic models, it can be shown that these controllers provide the microgrid with a deterministic and reliable connection to the grid.
Dw33741745
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
Line and Grid Impedance Impact on the Performances of a Parallel Connected Mo...
With the rising fuel cost, increasing demand of power and the concerns for global climate change, the use of clean energy make the connection of power electronics building bloc in the heart of the current research. The high output current applications make the parallel connection of modular inverters to be a solution for the use of low power building block inverters where the output power cannot be handled by a single inverter configuration. In this context, average-modeling using average phase–leg technique allows the n-parallel connected inverters to be analyzed accurately and rapidly without requiring the complexity of the full switched inverter topology. The obtained analytical solution along with the equivalent circuit model makes easier the design of the control loop. The analytical solution of the n-parallel connected inverters shows the impact of the line and grid impedance on the performance of the overall system. The impact of this coupling has to be investigated such that the main feature of paralleling inverters is guaranteed and that the inverter mode of operation will not be compromised. The main advantage of paralleling inverters can be lost for a certain coupling impedance considerations.
Solar Based Z Source Inverter for High Power Application
The different converters are developer in recent years for efficient operation of PV based various controllers for ac load application. The Z source inverter is used as both buck and boost operation. But the proposed paper Z source inverter produce more output voltage than input voltage. In proposed converter produce high power without using the transformer. The space vector modulation is used as to control the speed of an induction motor. The IFOC based SVM produce the pulse and given to the three phase inverter. In induction motor has high power application so the proposed Z source produces high output. The dc link voltage regulation using the filter. The proposed Z source based PV is implemented using MATLAB/ SIMULINK environment.
Power quality improvement in solar fed cascaded multilevel inverter with outp...
The presence of harmonics in solar Photo Voltaic (PV) energy conversion system results in deterioration of power quality. To address such issue, this paper aims to investigate the elimination of harmonics in a solar fed cascaded fifteen level inverter with aid of Proportional Integral (PI), Artificial Neural Network (ANN) and Fuzzy Logic (FL) based controllers. Unlike other techniques, the proposed FLC based approach helps in obtaining reduced harmonic distortions that intend to an enhancement in power quality. In addition to the power quality improvement, this paper also proposed to provide output voltage regulation in terms of maintaining voltage and frequency at the inverter output end in compatible with the grid connection requirements. The simulations are performed in the MATLAB / Simulink environment for solar fed cascaded 15 level inverter incorporating PI, ANN and FL based controllers. To exhibit the proposed technique, a 3 kWp photovoltaic plant coupled to multilevel inverter is designed and hardware is demonstrated. All the three techniques are experimentally investigated with the measurement of power quality metrics along with establishing output voltage regulation.
Improving Efficiency of Active Power Filter for Renewable Power Generation Sy...
This document summarizes a research paper that proposes using a predictive control method and fuzzy logic control method to improve the efficiency of an active power filter for renewable power generation systems. The active power filter is implemented using a four-leg voltage-source inverter. Simulation results using MATLAB/Simulink show that the proposed control strategy is able to effectively compensate current harmonics, current imbalance, and reactive power under different operating conditions, maintaining sinusoidal current waveforms with low total harmonic distortion. Both steady state and transient responses are evaluated, demonstrating the compensation performance of the active power filter and control strategy.
Lclr filter design and modelling for harmonic mitigation in interconnected mi...
Abstract Today many people are attracted towards distribution generation (DG) because of low energy cost power supply, local generation, highly reliable system, supply with good power quality. Increasing attention and investment in renewable energy that is DG energy sources give rise to rapid development of high penetration renewable energy sources like solar energy, wind energy, hydro energy. Out of this most important and best is the solar energy. There are multiple ways to interface PV arrays with the power grid, but in there is problem of power quality. Today’s important concern of the power system is the power quality in case of renewable energy sources. The power quality improvement in the interconnected micro grid systems and grid interconnection with Distribution Generation (DGs) is the challenging task and to overcome the power quality problem passive filters are the best and cost effective solution. In this paper the LCLR filter is implemented between inverter and grid. The complete system consists of photovoltaic cell (PV), DC-DC boost converter, DC-AC inverter, LCLR filter and the grid. This paper also consists of complete MATLAB simulation of PV cell, DC-DC boost converter and inverter with LCLR filter. Key Words: Renewable energy, PV module, DC-DC boost converter, DGs, LCLR filter, power quality, micro grid (MG) and THD
Design of Shunt Active Power Filter to eliminate harmonics generated by CFL
Abstract: The use of non-linear loads; such as TV sets and computer, microwave ovens, multiple low power diode rectifier, fluorescent lamps and electric drives, draw very distorted currents. These non-linear loads lead to generation of current/voltage harmonics and draw reactive power. This paper presents the three-phase shunt active power filter (SAPF) to compensate harmonics generated by non-linear load (compact fluorescent lamp). The instantaneous active and reactive power theory (called p-q theory) is used to design the control of SAPF. The harmonic distortion and the active filter control scheme have been verified by MATLAB simulation.
Modeling and Simulation of Grid Connected PV System
In today’s scenario, renewable energy based applications are increasing due to the global warming issue and increase in the prices of fossil fuels. Renewable energy sources RES like sun, biomass, air, water etc. are environmental friendly and have plenty of potential that can be utilized in power generation. However, RES have a problem of intermittent in nature that can be conquered presently by combining RES known as hybrid system that can provide the reliable, economic and environment friendly electricity. The increased penetration of grid connected renewable energy sources has an impact on the grid power quality in particular weak grids. Voltage fluctuation, frequency fluctuation and harmonics are major power quality issues. Muhammad Shahid | MD Ejaz Ali "Modeling and Simulation of Grid Connected PV System" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-5 , August 2021, URL: https://www.ijtsrd.com/papers/ijtsrd43761.pdf Paper URL: https://www.ijtsrd.com/engineering/electrical-engineering/43761/modeling-and-simulation-of-grid-connected-pv-system/muhammad-shahid
IJERD (www.ijerd.com) International Journal of Engineering Research and Devel...
This document summarizes a research paper on using neural networks to control shunt active power filters for reducing harmonics. It begins with an abstract describing how neural networks can improve active power filter performance. It then provides background on power harmonics and classifications of active power filters, focusing on shunt active power filters. The key section discusses applications of neural networks in active power filter control, noting advantages like increased speed, robustness, and accuracy. It also reviews design considerations for active power filter controllers and presents figures of a proposed neural network controlled shunt active power filtering system.
IRJET - Hybrid Renewable Energy Sources for Power Quality Improvement with In...
This document discusses hybrid renewable energy sources and power quality improvement using an intelligent controller. It proposes using a hybrid system of renewable energy sources along with a shunt active power filter (APF) controlled by an intelligent controller to improve power quality issues like harmonics. The APF compensates for harmonic current in the system. The document provides details on the various components involved like the choke, linear and non-linear loads, three-phase voltage and current measurement, bridge amplifier, hysteresis control, and power quality (PQ) theory. It also discusses control strategies for the shunt APF like synchronous detection and instantaneous power (p-q) theory methods.
Distributed Generation Inverter as APF in Dual APF DG interfacing Scheme
Distributed Generation Inverter as APF in Dual APF DG interfacing SchemeInternational Journal of Power Electronics and Drive Systems
This document summarizes a research paper that proposes a distributed generation (DG) interfacing scheme using a dual active power filter (APF) configuration. The scheme involves a DG inverter that initially acts as an inverter to feed 5KW of active power from the DG source to the grid. At 0.2 seconds, the DG inverter then acts as an APF along with the dual APF setup to provide harmonic compensation. Control strategies are presented for operating the DG inverter in inverter and APF modes using simple control techniques. Instantaneous active and reactive power (PQ) theory is used to control the dual APF configuration. Simulation results are shown verifying the DG inverter canTechno Economic Analysis of HVDC Links for Inter State Interconnection
The design of an interregional high voltage transmission system in the US is a revolutionary technological concept that will likely play a significant role in the planning and operation of future electric power systems. This paper presents techno economics analysis of HVDC link for interstate inter connected system. there are two type transmission system used for large power supply to long distance transmission 1 HVDC high voltage dc transmission system 2 HVAC high voltage ac transmission system in which HVDC is preferable due less power loss in transmissions but it need high installing charge at the starting moment. It need two type of installation block 1 rectifier block at the sending end 2 inverter block at receiving end these both block deal with high reactive VAR. In this paper we are going to analyze technology of HVDC installation, there control, how HVDC link deal with reactive VAR reactive power compensation , how its economical if it need high installing charge .In this paper we are using 2500 MVA, 230 volt, 60 grid after rectifying power transmitted to 100 km by 100 km cable then it invert at receiving end for distribution. Here we are calculating reactive power demand for both inverter and converter both, we comparing HVDC transmutation system with HVAC transmission system economically we also coverings the environmental advantages for HVDC system. My focus in this paper is, how to minimize installing charge of HVDC link, how to increase power carrying capacity of HVDC system and how to make it environment friendly. Muhammad Shahid | MD Asif "Techno-Economic Analysis of HVDC Links for Inter-State Interconnection" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-5 , August 2021, URL: https://www.ijtsrd.com/papers/ijtsrd43760.pdf Paper URL: https://www.ijtsrd.com/engineering/electrical-engineering/43760/technoeconomic-analysis-of-hvdc-links-for-interstate-interconnection/muhammad-shahid
Design and simulation of single phase z source inverter using
Leading project maker in Nashik, Electrical project in nashik goelectromeh.in, Electronic project in nashik goelectromeh.in, computer project in nashik, Electrical project engineering project in nashik goelectromeh.in, Electronic project engineering project in nashik goelectromeh.in, Computer project engineering project in nashik goelectromeh.in,
Electrical project Diploma project in nashik goelectromeh.in, Electronic project Diploma project in nashik goelectromeh.in, Computer project Diploma project in nashik goelectromeh.in.
G1101045767
This document proposes a reactive power control scheme based on correlation coefficients between voltage and current signals. The scheme calculates cross-correlation coefficients using sampled voltage and current data from a power supply. It determines the current power factor and reactive power compensation needed to achieve a desired power factor. The number of required capacitor banks is calculated and signals are sent to close circuit breakers and insert the appropriate capacitors into the system. The technique aims to accurately correct power factor during one cycle of the fundamental frequency for improved power system efficiency.
IEEE 2017 EEE matlab projects
This document lists 51 MATLAB projects related to power electronics, power systems, and PID control from IEEE 2017. The projects cover topics such as grid-connected PV converters, cascaded multilevel converters, active power filters, renewable energy systems, and motor drives. Vision Solutions provides engineering services and calls for collaboration on these projects in Hyderabad, Guntur, and Vijayawada, India.
SIMULATION OF REDUCED SWITCH INVERTER BASED UPQC WITH FUZZY LOGIC AND ANN CON...
ABSTRACT
This paper presents a new methodology to reduce harmonic distortion in UPQC using artificial neural network
and fuzzy logic controller. So this paper main aim is improve power quality by using UPQC with ANN and FLC. The most purpose of the proposed (ANN & FLC) is capable of providing good static and dynamic performances compared to PI controller. The UPQC is to control on voltage flicker/unbalance, reactive power and harmonics. In different words, the UPQC has the potential of up power quality at the purpose of installation on power industrial power systems. The appliance of computing is growing quick within the space of power electronics and drives. From olden days to now days we are using twelve switches used in back to back configuration. But now we are using nine switches instead of 12
switches. In 9 switch UPQC converter given the most useful benefits compared to 12 switches power converter. The nine switches UPQC converter gets the best results by using of three methods. They are one is PI controller technique, ANN controller technique and FLC controller technique. By contrast PI, FLC and ANN, ANN is better than (FLC & PI) for power quality enhancement and voltage sag and voltage swell mitigations. The factitious neural network (ANN) is taken into account as a replacement tool to style management electronic equipment for power quality (PQ) devices. A whole
simulation study is administrated to analysis the performance of the ANN controller and compares its performance with the quality FLC & PI controller’s results. The nine-switch convertor has already been proved to possess sure benefits,
additionally to its part saving topological feature. Despite these benefits, the nine-switch convertor has thus far found restricted applications because of its several perceived performance tradeoffs like requiring associate degree outsized
dc-link capacitance, restricted amplitude sharing, and unnatural part shift between its 2 sets of output terminals. Rather than acceptive these tradeoffs as limitations, a nine-switch power conditioner is projected here that nearly “converts” most of those topological short comings into fascinating performance benefits. Aiming more to cut back its switch losses,
Harmonics, Voltage Sag & Swell associate degree acceptable discontinuous modulation theme is projected and studied here thoroughly to doubly make sure that top reduction of commutations is achieved. With associate degree suitably
designed management theme with PI and ANN with Fuzzy logic controller then incorporated, the nine-switch convertor is shown to favorably raise the general power quality in Simulation, thus justifying its role as an influence conditioner at a reduced value.
KEYWORDS: ANN, Active Power Filters, PI Controller, Nine Switch Converter, Power Quality, UPQC
A Bidirectional LLC Resonant Converter With Automatic Forward and Backward Mo...
This paper proposes an improved bidirectional LLC resonant converter with a new control scheme that allows for automatic forward and backward mode transition. The proposed topology enables soft switching for all switches, reducing reverse energy and turn-off loss compared to traditional isolated bidirectional converters like dual active bridge converters, improving conversion efficiency. Experimental results from a 1 kW prototype validate the performance, achieving over 97% efficiency at full load conditions.
More Related Content
What's hot
IRJET- A Review on Single Phase to Three Phase Transformer and Three Phas...
This document reviews different types of transformer configurations that can convert single-phase power to three-phase power or three-phase power to five-phase power. It discusses several research papers on single-phase to three-phase converters using rectifiers and inverters as well as novel transformer designs to directly produce a three-phase or five-phase output from a single-phase or three-phase input. The review covers topics like reliability, efficiency and harmonic distortion reduction of different converter topologies.
Ijmer 46061528
This document presents a new control strategy for an islanded microgrid consisting of PV and fuel cell distributed generation units supplying both local and nonlocal unbalanced loads. The control strategy comprises voltage control using a proportional resonance controller, droop-based power sharing, and a negative sequence impedance controller. The voltage controller regulates load voltages while the droop controller shares average power. The negative sequence controller minimizes negative sequence currents in the microgrid lines by adjusting each DG unit's negative sequence output impedance, improving power quality under unbalanced conditions. Time-domain simulations in MATLAB/Simulink validate the control strategy's performance for the PV and fuel cell microgrid.
Three phase transformerless shunt active power filter with reduced switch cou...
Shunt active power filter is the preeminent solution against nonlinear loads, current harmonics and power quality problems. APF topologies for harmonic compensation use numerous high-power rating components and are therefore disadvantageous. Hybrid topologies combining low-power rating APF with passive filters are used to reduce the power rating of voltage source inverter. Hybrid APF topologies for high-power rating systems use a transformer with large numbers of passive components. In this paper, a novel four-switch two-leg VSI topology for a three-phase SAPF is proposed for reducing the system cost and size. The proposed topology comprises a two-arm bridge structure, four switches, coupling inductors, and sets of LC PFs. The third leg of the three-phase VSI is removed by eliminating the set of power switching devices, thereby directly connecting the phase with the negative terminals of the dc-link capacitor. The proposed topology enhances the harmonic compensation capability and provides complete reactive power compensation compared with conventional APF topologies. The new experimental prototype is tested in the laboratory to verify the results in terms of total harmonic distortion, balanced supply current, and harmonic compensation, following the IEEE-519 standard.
Design and simulation of single phase five-level symmetrical cascaded h-bridg...
Multilevel inverter is an effective and practical solution for increasing power demand and reducing harmonics of ac waveforms. Such inverters synthesize a desired output voltage from several levels of dc voltages as inputs. This paper analyzes the performance of five level cascaded H-bridge multilevel inverter with reduce number of power switches. Further by reducing switches and increasing level will reduce filter cost & harmonic content. 5- Level cascaded H-bridge asymmetrical multilevel inverter topology requires 8 switches but in this new multilevel inverter it requires 6 switches in which same multilevel is obtained. Invariably switching losses and cost also reduced. In this .paper only multilevel inverter circuitry will be studied. The performance has been analyzed by the MATLAB/Simulink.
Dynamic modeling of microgrid for grid connected intentional islanding operat...
Microgrid is defined as the cluster of multiple distributed generators (DGs) such as renewable energy sources that supply electrical energy. The connection of microgrid is in parallel with the main grid. When microgrid is isolated from remainder of the utility system, it is said to be in intentional islanding mode. In this mode, DG inverter system operates in voltage control mode to provide constant voltage to the local load. During grid connected mode, the Microgrid operates in constant current control mode to supply preset power to the main grid. The main contribution of this paper is summarized as
1) Design of a network based control scheme for inverter based sources, which provides proper current control during grid connected mode and voltage control during islanding mode.
2) Development of an algorithm for intentional islanding detection and synchronization controller required during grid reconnection.
3) Dynamic modeling and simulation are conducted to show system behavior under proposed method using SIMULINK.
From the simulation results using Simulink dynamic models, it can be shown that these controllers provide the microgrid with a deterministic and reliable connection to the grid.
Dw33741745
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
Line and Grid Impedance Impact on the Performances of a Parallel Connected Mo...
With the rising fuel cost, increasing demand of power and the concerns for global climate change, the use of clean energy make the connection of power electronics building bloc in the heart of the current research. The high output current applications make the parallel connection of modular inverters to be a solution for the use of low power building block inverters where the output power cannot be handled by a single inverter configuration. In this context, average-modeling using average phase–leg technique allows the n-parallel connected inverters to be analyzed accurately and rapidly without requiring the complexity of the full switched inverter topology. The obtained analytical solution along with the equivalent circuit model makes easier the design of the control loop. The analytical solution of the n-parallel connected inverters shows the impact of the line and grid impedance on the performance of the overall system. The impact of this coupling has to be investigated such that the main feature of paralleling inverters is guaranteed and that the inverter mode of operation will not be compromised. The main advantage of paralleling inverters can be lost for a certain coupling impedance considerations.
Solar Based Z Source Inverter for High Power Application
The different converters are developer in recent years for efficient operation of PV based various controllers for ac load application. The Z source inverter is used as both buck and boost operation. But the proposed paper Z source inverter produce more output voltage than input voltage. In proposed converter produce high power without using the transformer. The space vector modulation is used as to control the speed of an induction motor. The IFOC based SVM produce the pulse and given to the three phase inverter. In induction motor has high power application so the proposed Z source produces high output. The dc link voltage regulation using the filter. The proposed Z source based PV is implemented using MATLAB/ SIMULINK environment.
Power quality improvement in solar fed cascaded multilevel inverter with outp...
The presence of harmonics in solar Photo Voltaic (PV) energy conversion system results in deterioration of power quality. To address such issue, this paper aims to investigate the elimination of harmonics in a solar fed cascaded fifteen level inverter with aid of Proportional Integral (PI), Artificial Neural Network (ANN) and Fuzzy Logic (FL) based controllers. Unlike other techniques, the proposed FLC based approach helps in obtaining reduced harmonic distortions that intend to an enhancement in power quality. In addition to the power quality improvement, this paper also proposed to provide output voltage regulation in terms of maintaining voltage and frequency at the inverter output end in compatible with the grid connection requirements. The simulations are performed in the MATLAB / Simulink environment for solar fed cascaded 15 level inverter incorporating PI, ANN and FL based controllers. To exhibit the proposed technique, a 3 kWp photovoltaic plant coupled to multilevel inverter is designed and hardware is demonstrated. All the three techniques are experimentally investigated with the measurement of power quality metrics along with establishing output voltage regulation.
Improving Efficiency of Active Power Filter for Renewable Power Generation Sy...
This document summarizes a research paper that proposes using a predictive control method and fuzzy logic control method to improve the efficiency of an active power filter for renewable power generation systems. The active power filter is implemented using a four-leg voltage-source inverter. Simulation results using MATLAB/Simulink show that the proposed control strategy is able to effectively compensate current harmonics, current imbalance, and reactive power under different operating conditions, maintaining sinusoidal current waveforms with low total harmonic distortion. Both steady state and transient responses are evaluated, demonstrating the compensation performance of the active power filter and control strategy.
Lclr filter design and modelling for harmonic mitigation in interconnected mi...
Abstract Today many people are attracted towards distribution generation (DG) because of low energy cost power supply, local generation, highly reliable system, supply with good power quality. Increasing attention and investment in renewable energy that is DG energy sources give rise to rapid development of high penetration renewable energy sources like solar energy, wind energy, hydro energy. Out of this most important and best is the solar energy. There are multiple ways to interface PV arrays with the power grid, but in there is problem of power quality. Today’s important concern of the power system is the power quality in case of renewable energy sources. The power quality improvement in the interconnected micro grid systems and grid interconnection with Distribution Generation (DGs) is the challenging task and to overcome the power quality problem passive filters are the best and cost effective solution. In this paper the LCLR filter is implemented between inverter and grid. The complete system consists of photovoltaic cell (PV), DC-DC boost converter, DC-AC inverter, LCLR filter and the grid. This paper also consists of complete MATLAB simulation of PV cell, DC-DC boost converter and inverter with LCLR filter. Key Words: Renewable energy, PV module, DC-DC boost converter, DGs, LCLR filter, power quality, micro grid (MG) and THD
Design of Shunt Active Power Filter to eliminate harmonics generated by CFL
Abstract: The use of non-linear loads; such as TV sets and computer, microwave ovens, multiple low power diode rectifier, fluorescent lamps and electric drives, draw very distorted currents. These non-linear loads lead to generation of current/voltage harmonics and draw reactive power. This paper presents the three-phase shunt active power filter (SAPF) to compensate harmonics generated by non-linear load (compact fluorescent lamp). The instantaneous active and reactive power theory (called p-q theory) is used to design the control of SAPF. The harmonic distortion and the active filter control scheme have been verified by MATLAB simulation.
Modeling and Simulation of Grid Connected PV System
In today’s scenario, renewable energy based applications are increasing due to the global warming issue and increase in the prices of fossil fuels. Renewable energy sources RES like sun, biomass, air, water etc. are environmental friendly and have plenty of potential that can be utilized in power generation. However, RES have a problem of intermittent in nature that can be conquered presently by combining RES known as hybrid system that can provide the reliable, economic and environment friendly electricity. The increased penetration of grid connected renewable energy sources has an impact on the grid power quality in particular weak grids. Voltage fluctuation, frequency fluctuation and harmonics are major power quality issues. Muhammad Shahid | MD Ejaz Ali "Modeling and Simulation of Grid Connected PV System" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-5 , August 2021, URL: https://www.ijtsrd.com/papers/ijtsrd43761.pdf Paper URL: https://www.ijtsrd.com/engineering/electrical-engineering/43761/modeling-and-simulation-of-grid-connected-pv-system/muhammad-shahid
IJERD (www.ijerd.com) International Journal of Engineering Research and Devel...
This document summarizes a research paper on using neural networks to control shunt active power filters for reducing harmonics. It begins with an abstract describing how neural networks can improve active power filter performance. It then provides background on power harmonics and classifications of active power filters, focusing on shunt active power filters. The key section discusses applications of neural networks in active power filter control, noting advantages like increased speed, robustness, and accuracy. It also reviews design considerations for active power filter controllers and presents figures of a proposed neural network controlled shunt active power filtering system.
IRJET - Hybrid Renewable Energy Sources for Power Quality Improvement with In...
This document discusses hybrid renewable energy sources and power quality improvement using an intelligent controller. It proposes using a hybrid system of renewable energy sources along with a shunt active power filter (APF) controlled by an intelligent controller to improve power quality issues like harmonics. The APF compensates for harmonic current in the system. The document provides details on the various components involved like the choke, linear and non-linear loads, three-phase voltage and current measurement, bridge amplifier, hysteresis control, and power quality (PQ) theory. It also discusses control strategies for the shunt APF like synchronous detection and instantaneous power (p-q) theory methods.
Distributed Generation Inverter as APF in Dual APF DG interfacing Scheme
Distributed Generation Inverter as APF in Dual APF DG interfacing SchemeInternational Journal of Power Electronics and Drive Systems
This document summarizes a research paper that proposes a distributed generation (DG) interfacing scheme using a dual active power filter (APF) configuration. The scheme involves a DG inverter that initially acts as an inverter to feed 5KW of active power from the DG source to the grid. At 0.2 seconds, the DG inverter then acts as an APF along with the dual APF setup to provide harmonic compensation. Control strategies are presented for operating the DG inverter in inverter and APF modes using simple control techniques. Instantaneous active and reactive power (PQ) theory is used to control the dual APF configuration. Simulation results are shown verifying the DG inverter canTechno Economic Analysis of HVDC Links for Inter State Interconnection
The design of an interregional high voltage transmission system in the US is a revolutionary technological concept that will likely play a significant role in the planning and operation of future electric power systems. This paper presents techno economics analysis of HVDC link for interstate inter connected system. there are two type transmission system used for large power supply to long distance transmission 1 HVDC high voltage dc transmission system 2 HVAC high voltage ac transmission system in which HVDC is preferable due less power loss in transmissions but it need high installing charge at the starting moment. It need two type of installation block 1 rectifier block at the sending end 2 inverter block at receiving end these both block deal with high reactive VAR. In this paper we are going to analyze technology of HVDC installation, there control, how HVDC link deal with reactive VAR reactive power compensation , how its economical if it need high installing charge .In this paper we are using 2500 MVA, 230 volt, 60 grid after rectifying power transmitted to 100 km by 100 km cable then it invert at receiving end for distribution. Here we are calculating reactive power demand for both inverter and converter both, we comparing HVDC transmutation system with HVAC transmission system economically we also coverings the environmental advantages for HVDC system. My focus in this paper is, how to minimize installing charge of HVDC link, how to increase power carrying capacity of HVDC system and how to make it environment friendly. Muhammad Shahid | MD Asif "Techno-Economic Analysis of HVDC Links for Inter-State Interconnection" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-5 , August 2021, URL: https://www.ijtsrd.com/papers/ijtsrd43760.pdf Paper URL: https://www.ijtsrd.com/engineering/electrical-engineering/43760/technoeconomic-analysis-of-hvdc-links-for-interstate-interconnection/muhammad-shahid
Design and simulation of single phase z source inverter using
Leading project maker in Nashik, Electrical project in nashik goelectromeh.in, Electronic project in nashik goelectromeh.in, computer project in nashik, Electrical project engineering project in nashik goelectromeh.in, Electronic project engineering project in nashik goelectromeh.in, Computer project engineering project in nashik goelectromeh.in,
Electrical project Diploma project in nashik goelectromeh.in, Electronic project Diploma project in nashik goelectromeh.in, Computer project Diploma project in nashik goelectromeh.in.
G1101045767
This document proposes a reactive power control scheme based on correlation coefficients between voltage and current signals. The scheme calculates cross-correlation coefficients using sampled voltage and current data from a power supply. It determines the current power factor and reactive power compensation needed to achieve a desired power factor. The number of required capacitor banks is calculated and signals are sent to close circuit breakers and insert the appropriate capacitors into the system. The technique aims to accurately correct power factor during one cycle of the fundamental frequency for improved power system efficiency.
IEEE 2017 EEE matlab projects
This document lists 51 MATLAB projects related to power electronics, power systems, and PID control from IEEE 2017. The projects cover topics such as grid-connected PV converters, cascaded multilevel converters, active power filters, renewable energy systems, and motor drives. Vision Solutions provides engineering services and calls for collaboration on these projects in Hyderabad, Guntur, and Vijayawada, India.
What's hot (20)
IRJET- A Review on Single Phase to Three Phase Transformer and Three Phas...
IRJET- A Review on Single Phase to Three Phase Transformer and Three Phas...
Three phase transformerless shunt active power filter with reduced switch cou...
Three phase transformerless shunt active power filter with reduced switch cou...
Design and simulation of single phase five-level symmetrical cascaded h-bridg...
Design and simulation of single phase five-level symmetrical cascaded h-bridg...
Dynamic modeling of microgrid for grid connected intentional islanding operat...
Dynamic modeling of microgrid for grid connected intentional islanding operat...
Line and Grid Impedance Impact on the Performances of a Parallel Connected Mo...
Line and Grid Impedance Impact on the Performances of a Parallel Connected Mo...
Solar Based Z Source Inverter for High Power Application
Solar Based Z Source Inverter for High Power Application
Power quality improvement in solar fed cascaded multilevel inverter with outp...
Power quality improvement in solar fed cascaded multilevel inverter with outp...
Improving Efficiency of Active Power Filter for Renewable Power Generation Sy...
Improving Efficiency of Active Power Filter for Renewable Power Generation Sy...
Lclr filter design and modelling for harmonic mitigation in interconnected mi...
Lclr filter design and modelling for harmonic mitigation in interconnected mi...
Design of Shunt Active Power Filter to eliminate harmonics generated by CFL
Design of Shunt Active Power Filter to eliminate harmonics generated by CFL
Modeling and Simulation of Grid Connected PV System
Modeling and Simulation of Grid Connected PV System
IJERD (www.ijerd.com) International Journal of Engineering Research and Devel...
IJERD (www.ijerd.com) International Journal of Engineering Research and Devel...
IRJET - Hybrid Renewable Energy Sources for Power Quality Improvement with In...
IRJET - Hybrid Renewable Energy Sources for Power Quality Improvement with In...
Distributed Generation Inverter as APF in Dual APF DG interfacing Scheme
Distributed Generation Inverter as APF in Dual APF DG interfacing Scheme
Techno Economic Analysis of HVDC Links for Inter State Interconnection
Techno Economic Analysis of HVDC Links for Inter State Interconnection
Design and simulation of single phase z source inverter using
Design and simulation of single phase z source inverter using
Similar to Single active switch power electronics for kilowatt scale capacitive power transfer
SIMULATION OF REDUCED SWITCH INVERTER BASED UPQC WITH FUZZY LOGIC AND ANN CON...
ABSTRACT
This paper presents a new methodology to reduce harmonic distortion in UPQC using artificial neural network
and fuzzy logic controller. So this paper main aim is improve power quality by using UPQC with ANN and FLC. The most purpose of the proposed (ANN & FLC) is capable of providing good static and dynamic performances compared to PI controller. The UPQC is to control on voltage flicker/unbalance, reactive power and harmonics. In different words, the UPQC has the potential of up power quality at the purpose of installation on power industrial power systems. The appliance of computing is growing quick within the space of power electronics and drives. From olden days to now days we are using twelve switches used in back to back configuration. But now we are using nine switches instead of 12
switches. In 9 switch UPQC converter given the most useful benefits compared to 12 switches power converter. The nine switches UPQC converter gets the best results by using of three methods. They are one is PI controller technique, ANN controller technique and FLC controller technique. By contrast PI, FLC and ANN, ANN is better than (FLC & PI) for power quality enhancement and voltage sag and voltage swell mitigations. The factitious neural network (ANN) is taken into account as a replacement tool to style management electronic equipment for power quality (PQ) devices. A whole
simulation study is administrated to analysis the performance of the ANN controller and compares its performance with the quality FLC & PI controller’s results. The nine-switch convertor has already been proved to possess sure benefits,
additionally to its part saving topological feature. Despite these benefits, the nine-switch convertor has thus far found restricted applications because of its several perceived performance tradeoffs like requiring associate degree outsized
dc-link capacitance, restricted amplitude sharing, and unnatural part shift between its 2 sets of output terminals. Rather than acceptive these tradeoffs as limitations, a nine-switch power conditioner is projected here that nearly “converts” most of those topological short comings into fascinating performance benefits. Aiming more to cut back its switch losses,
Harmonics, Voltage Sag & Swell associate degree acceptable discontinuous modulation theme is projected and studied here thoroughly to doubly make sure that top reduction of commutations is achieved. With associate degree suitably
designed management theme with PI and ANN with Fuzzy logic controller then incorporated, the nine-switch convertor is shown to favorably raise the general power quality in Simulation, thus justifying its role as an influence conditioner at a reduced value.
KEYWORDS: ANN, Active Power Filters, PI Controller, Nine Switch Converter, Power Quality, UPQC
A Bidirectional LLC Resonant Converter With Automatic Forward and Backward Mo...
This paper proposes an improved bidirectional LLC resonant converter with a new control scheme that allows for automatic forward and backward mode transition. The proposed topology enables soft switching for all switches, reducing reverse energy and turn-off loss compared to traditional isolated bidirectional converters like dual active bridge converters, improving conversion efficiency. Experimental results from a 1 kW prototype validate the performance, achieving over 97% efficiency at full load conditions.
IRJET- A Systematic Approach to Design Single Phase Transformer Less Inve...
This document presents a new transformerless inverter topology for grid-tied photovoltaic systems that can control reactive power. The topology aims to improve efficiency by utilizing MOSFET switches and maintains a constant common mode voltage to reduce leakage currents. It was tested with a 1 kW prototype and experimental results showed it can inject reactive power into the grid without additional current distortion or leakage. The control scheme for the topology is also analyzed, demonstrating it can effectively respond to changes in active power reference.
Two-Stage Power Conversion Architecture Suitable for Wide Range Input Voltage
This paper proposes a two-stage power conversion architecture suitable for wide input voltage ranges. The architecture combines a soft-charging switched-capacitor pre-regulator stage to compress a wide input voltage range into a narrower intermediate range, with a high-frequency magnetic regulator stage. This merged two-stage topology enables high efficiency, power density, and power factor for applications up to 30W requiring wide input voltage regulation, such as LED drivers. The approach is demonstrated through implementations of a 25-200V dc-dc converter achieving 88-96% efficiency at 30W, and an ac-dc converter with 88% efficiency and 0.93 power factor at 8.4W from an AC line.
A Novel Three-Phase Buck–Boost AC–DC Converter
The document proposes a novel three-phase buck-boost AC-DC converter that can operate over a wide range of input voltages and output voltages. It uses reduced switching to lower costs. The paper analyzes how the converter operates in boost mode with a capacitive input filter and in both buck and boost modes. Experimental results from a prototype confirm the feasibility of the converter.
Applications of Smart Grid through Harmonic Current & Reactive Power Compensa...
The document discusses applications of smart grids through harmonic current and reactive power compensation. It describes how unidirectional AC-DC boost converters can be used for both harmonic current compensation and reactive power compensation to improve grid power quality while regulating DC bus voltage. A control strategy is proposed for the converter to operate in three modes - power factor correction, harmonic current compensation, and reactive power compensation - to simultaneously compensate for harmonics and reactive power drawn from the grid.
Presentation on DC-DC converter for EV
The document presents a proposed cost efficient isolated DC-DC converter for electric vehicle applications. The objectives are to develop a high efficient flyback DC-DC converter with soft switching and to boost the output voltage. The existing systems have disadvantages like low power efficiency, high cost, and high switching losses. The proposed system uses a simple circuit structure with one MOSFET and reduced switches and passive elements. It can boost 12V input to 220V output voltage. Simulation and hardware results show the converter is capable for high power applications with high efficiency.
All ieee 2013
The document contains 20 projects related to power electronics, power systems, and power sectors. The projects cover topics like voltage control of smart transformers, DC-DC converters, maximum power point tracking for photovoltaic systems, arc welding machine control, battery chargers, and more. Control strategies, topologies, and applications of various power electronic converters are discussed.
All ieee 2013
The document discusses 20 projects related to power electronics, power systems, and power sectors. The projects cover topics like voltage control of smart transformers, DC-DC converters, maximum power point tracking for photovoltaic systems, arc welding machine control, battery chargers, and more. Protection and control schemes for various power equipment are also discussed.
All ieee 2013
The document contains 20 projects related to power electronics, power systems, and power sectors. The projects focus on various topics including voltage control in microgrids, DC-DC converters, maximum power point tracking, inverters, FACTS controllers, transformer protection, generator protection, and more. Control strategies, novel topologies, and intelligent techniques are proposed and analyzed across the different project descriptions.
All ieee 2013
The document discusses 20 projects related to power electronics, power systems, and power sectors. The projects focus on various topics including voltage control in microgrids, DC-DC converters, maximum power point tracking for photovoltaic systems, welding machine control, inverters, battery charging, and more. Control strategies, topologies, and applications across these areas are explored.
All ieee 2013
The document discusses 20 projects related to power electronics and power systems. The projects focus on topics like voltage control in microgrids, DC-DC converters, maximum power point tracking for photovoltaic systems, digital control of welding machines, inverters, battery chargers, and reactive power compensation. The projects propose various control strategies, converter topologies, and applications of power electronics and FACTS devices in power systems.
All ieee 2013
The document discusses 20 projects related to power electronics, power systems, and power sectors. The projects focus on various topics including voltage control in microgrids, DC-DC converters, maximum power point tracking for photovoltaic systems, welding machine control, inverters, battery charging, and more. Control strategies, topologies, and applications across these areas are explored.
All ieee 2013
The document discusses 20 projects related to power electronics, power systems, and power sectors. The projects focus on various topics including voltage control in microgrids, DC-DC converters, maximum power point tracking for photovoltaic systems, welding machine control, inverters, battery charging, and more. Control strategies, topologies, and applications across these areas are explored.
All ieee 2013
The document discusses 20 projects related to power electronics, power systems, and power sectors. The projects focus on various topics including voltage control in microgrids, DC-DC converters, maximum power point tracking for photovoltaic systems, welding machine control, inverters, battery charging, and more. Control strategies, topologies, and applications across these areas are explored.
Improved Time Responses of PI & FL Controlled SEPIC Converter based Series Re...
Improved Time Responses of PI & FL Controlled SEPIC Converter based Series Re...International Journal of Power Electronics and Drive Systems
This work deals with the Power Factor Corrected Single-Ended Primary Inductor Converter (PFC-SEPIC) based voltage fed closed loop full bridge series resonant induction heating system for household induction heating applications. The output voltage of the front end PFC-SEPIC converter fed series resonant inverter governs the controllers, which may be PI controller or Fuzzy Logic Controller (FLC). The analysis and comparison of time responses are presented in this paper. The PFC-SEPIC converter is used to improve the output power and the THD of source side current are compared for PI and FLC controllers. PFC-SEPIC converter maintains improved current and voltage at unity power factor through the input mains. The SEPIC converter based Voltage Fed Full Bridge Series Resonant Inverter (VFFBSRI) converts the voltage at a frequency of 10 kHz to a level suitable for household induction heating. A 1 kW SEPIC converter based VFFBSRI with RLC load is designed and simulated using MATLAB/ Simulink and hardware is fabricated.A Novel Integrated AC-DC Five Level Converter Strategy for Power Factor Corre...
Multilevel configuration has the advantage of its simplicity and modularity over the configurations of the other converters. With the application of multilevel converter in the high voltage and large power occasions in recent years, its modulation strategy has become a research hot point in the field of power electronics. The proposed power-factor-correction circuit can achieve unity power factor and ripple-free input current using a coupled inductor. The proposed rectifier can also produce input currents that do not have dead band regions and an output current that is continuous for all load conditions. The features of this converter are that it has lower input section peak current stresses and a better harmonic content than similar converter with a non-interleaved output, the output current is continuous for all load ranges, and the dc bus voltage is less than 450 for all line and load conditions. In this paper, the operation of the new converter is explained, its steady-state characteristics are determined by analysis, and these characteristics are used to develop a procedure for the design of the converter. Hence the simulation results are obtained using MATLAB/SIMULINK software. The proposed system provides a closed loop control for variable output voltage. The SSPFC AC/DC converter can operate with lower peak voltage stresses across the switches and the DC bus capacitors as it is a three-level converter. The proposed concept can be implemented with 5-level for efficient output voltage.
A Five – Level Integrated AC – DC Converter
This paper presents the implementation of a new five – level integrated AC – DC converter with high input power factor and reduced input current harmonics complied with IEC1000-3-2 harmonic standards for electrical equipments. The proposed topology is a combination of boost input power factor pre – regulator and five – level DC – DC converter. The single – stage PFC (SSPFC) approach used in this topology is an alternative solution to low – power and cost – effective applications.
A Novel Power Factor Correction Modified Bridge Less-CUK Converter for LED La...
In recent decades, several research works have been focused on the efficient Power Factor Correction (PFC) converter design in to meet the power supply efficiency. Conventional PFC cuk converter widely uses the full bridge rectifier which had resulted in overall increase of converter losses and inefficiency. This paper is intended to develop a novel PFC Bridgeless cuk converter for LED lamp applications. In this work, the limitations of the conventional PFC Cuk converter are resolved. The major contributions of the proposed work include the minimization in the number of conduction devices and minimization of the power utility devices which in turn resulted in minimal losses and better efficiency. Moreover, the proposed converter works in DCM which requires only one voltage sensor which results in reduced cost. The proposed Modified BL Cuk converter (MBL-CUK) for LED lamp is simulated in MATLAB and the corresponding results show the better power quality indices such as power factor and Total Harmonic Distortion.
[IJET- V2I2P17] Authors: Gaurav B. Patil., Paresh J. Shah
[IJET- V2I2P17] Authors: Gaurav B. Patil., Paresh J. ShahIJET - International Journal of Engineering and Techniques
Universal demand for power increases due to continuous development to fulfil all these demand. Resources
are used with optimization. A high efficiency and high power factor converters are the major parts of energy
transfer system. This paper present a general review on single stage forward and flyback converter topologies to get
better its performance. This is paper presents a kind general idea of increasing efficiency and power factor of single
stage forward and fly back converter.Similar to Single active switch power electronics for kilowatt scale capacitive power transfer (20)
SIMULATION OF REDUCED SWITCH INVERTER BASED UPQC WITH FUZZY LOGIC AND ANN CON...
SIMULATION OF REDUCED SWITCH INVERTER BASED UPQC WITH FUZZY LOGIC AND ANN CON...
A Bidirectional LLC Resonant Converter With Automatic Forward and Backward Mo...
A Bidirectional LLC Resonant Converter With Automatic Forward and Backward Mo...
IRJET- A Systematic Approach to Design Single Phase Transformer Less Inve...
IRJET- A Systematic Approach to Design Single Phase Transformer Less Inve...
Two-Stage Power Conversion Architecture Suitable for Wide Range Input Voltage
Two-Stage Power Conversion Architecture Suitable for Wide Range Input Voltage
Applications of Smart Grid through Harmonic Current & Reactive Power Compensa...
Applications of Smart Grid through Harmonic Current & Reactive Power Compensa...
Improved Time Responses of PI & FL Controlled SEPIC Converter based Series Re...
Improved Time Responses of PI & FL Controlled SEPIC Converter based Series Re...
A Novel Integrated AC-DC Five Level Converter Strategy for Power Factor Corre...
A Novel Integrated AC-DC Five Level Converter Strategy for Power Factor Corre...
A Novel Power Factor Correction Modified Bridge Less-CUK Converter for LED La...
A Novel Power Factor Correction Modified Bridge Less-CUK Converter for LED La...
[IJET- V2I2P17] Authors: Gaurav B. Patil., Paresh J. Shah
[IJET- V2I2P17] Authors: Gaurav B. Patil., Paresh J. Shah
More from I3E Technologies
Add
I3E Technologies,
#23/A, 2nd Floor SKS Complex,
Opp. Bus Stand, Karur-639 001.
IEEE PROJECTS AVAILABLE,
NON-IEEE PROJECTS AVAILABLE,
APPLICATION BASED PROJECTS AVAILABLE,
MINI-PROJECTS AVAILABLE.
Mobile : 99436 99916, 99436 99926, 99436 99936
Mail ID: i3eprojectskarur@gmail.com
Web: www.i3etechnologies.com, www.i3eprojects.com
Design of a low voltage low-dropout regulator
This document outlines the sections and contents for a project report on designing a low-voltage low-dropout regulator. It includes sections for an abstract, introduction, literature survey, existing and proposed systems, advantages, requirements, diagrams, implementation, testing, conclusions, and references. Contact information and course offerings are also provided for i3e Technologies.
An efficient constant multiplier architecture based on vertical horizontal bi...
I3E Technologies,
#23/A, 2nd Floor SKS Complex,
Opp. Bus Stand, Karur-639 001.
IEEE PROJECTS AVAILABLE,
NON-IEEE PROJECTS AVAILABLE,
APPLICATION BASED PROJECTS AVAILABLE,
MINI-PROJECTS AVAILABLE.
Mobile : 99436 99916, 99436 99926, 99436 99936
Mail ID: i3eprojectskarur@gmail.com
Web: www.i3etechnologies.com, www.i3eprojects.com
Aging aware reliable multiplier design with adaptive hold logic
I3E Technologies,
#23/A, 2nd Floor SKS Complex,
Opp. Bus Stand, Karur-639 001.
IEEE PROJECTS AVAILABLE,
NON-IEEE PROJECTS AVAILABLE,
APPLICATION BASED PROJECTS AVAILABLE,
MINI-PROJECTS AVAILABLE.
Mobile : 99436 99916, 99436 99926, 99436 99936
Mail ID: i3eprojectskarur@gmail.com
Web: www.i3etechnologies.com, www.i3eprojects.com
A high performance fir filter architecture for fixed and reconfigurable appli...
I3E Technologies,
#23/A, 2nd Floor SKS Complex,
Opp. Bus Stand, Karur-639 001.
IEEE PROJECTS AVAILABLE,
NON-IEEE PROJECTS AVAILABLE,
APPLICATION BASED PROJECTS AVAILABLE,
MINI-PROJECTS AVAILABLE.
Mobile : 99436 99916, 99436 99926, 99436 99936
Mail ID: i3eprojectskarur@gmail.com
Web: www.i3etechnologies.com, www.i3eprojects.com
A generalized algorithm and reconfigurable architecture for efficient and sca...
I3E Technologies,
#23/A, 2nd Floor SKS Complex,
Opp. Bus Stand, Karur-639 001.
IEEE PROJECTS AVAILABLE,
NON-IEEE PROJECTS AVAILABLE,
APPLICATION BASED PROJECTS AVAILABLE,
MINI-PROJECTS AVAILABLE.
Mobile : 99436 99916, 99436 99926, 99436 99936
Mail ID: i3eprojectskarur@gmail.com
Web: www.i3etechnologies.com, www.i3eprojects.com
A combined sdc sdf architecture for normal i o pipelined radix-2 fft
I3E Technologies,
#23/A, 2nd Floor SKS Complex,
Opp. Bus Stand, Karur-639 001.
IEEE PROJECTS AVAILABLE,
NON-IEEE PROJECTS AVAILABLE,
APPLICATION BASED PROJECTS AVAILABLE,
MINI-PROJECTS AVAILABLE.
Mobile : 99436 99916, 99436 99926, 99436 99936
Mail ID: i3eprojectskarur@gmail.com
Web: www.i3etechnologies.com, www.i3eprojects.com
Reverse converter design via parallel prefix adders novel components, method...
I3E Technologies,
#23/A, 2nd Floor SKS Complex,
Opp. Bus Stand, Karur-639 001.
IEEE PROJECTS AVAILABLE,
NON-IEEE PROJECTS AVAILABLE,
APPLICATION BASED PROJECTS AVAILABLE,
MINI-PROJECTS AVAILABLE.
Mobile : 99436 99916, 99436 99926, 99436 99936
Mail ID: i3eprojectskarur@gmail.com
Web: www.i3etechnologies.com, www.i3eprojects.com
Pre encoded multipliers based on non-redundant radix-4 signed-digit encoding
I3E Technologies,
#23/A, 2nd Floor SKS Complex,
Opp. Bus Stand, Karur-639 001.
IEEE PROJECTS AVAILABLE,
NON-IEEE PROJECTS AVAILABLE,
APPLICATION BASED PROJECTS AVAILABLE,
MINI-PROJECTS AVAILABLE.
Mobile : 99436 99916, 99436 99926, 99436 99936
Mail ID: i3eprojectskarur@gmail.com
Web: www.i3etechnologies.com, www.i3eprojects.com
Energy optimized subthreshold vlsi logic family with unbalanced pull up down ...
I3E Technologies,
#23/A, 2nd Floor SKS Complex,
Opp. Bus Stand, Karur-639 001.
IEEE PROJECTS AVAILABLE,
NON-IEEE PROJECTS AVAILABLE,
APPLICATION BASED PROJECTS AVAILABLE,
MINI-PROJECTS AVAILABLE.
Mobile : 99436 99916, 99436 99926, 99436 99936
Mail ID: i3eprojectskarur@gmail.com
Web: www.i3etechnologies.com, www.i3eprojects.com
Variable form carrier-based pwm for boost-voltage motor driver with a charge-...
I3E Technologies,
#23/A, 2nd Floor SKS Complex,
Opp. Bus Stand, Karur-639 001.
IEEE PROJECTS AVAILABLE,
NON-IEEE PROJECTS AVAILABLE,
APPLICATION BASED PROJECTS AVAILABLE,
MINI-PROJECTS AVAILABLE.
Mobile : 99436 99916, 99436 99926, 99436 99936
Mail ID: i3eprojectskarur@gmail.com
Web: www.i3etechnologies.com, www.i3eprojects.com
Ultrasparse ac link converters
I3E Technologies,
#23/A, 2nd Floor SKS Complex,
Opp. Bus Stand, Karur-639 001.
IEEE PROJECTS AVAILABLE,
NON-IEEE PROJECTS AVAILABLE,
APPLICATION BASED PROJECTS AVAILABLE,
MINI-PROJECTS AVAILABLE.
Mobile : 99436 99916, 99436 99926, 99436 99936
Mail ID: i3eprojectskarur@gmail.com
Web: www.i3etechnologies.com, www.i3eprojects.com
Single inductor dual-output buck–boost power factor correction converter
I3E Technologies,
#23/A, 2nd Floor SKS Complex,
Opp. Bus Stand, Karur-639 001.
IEEE PROJECTS AVAILABLE,
NON-IEEE PROJECTS AVAILABLE,
APPLICATION BASED PROJECTS AVAILABLE,
MINI-PROJECTS AVAILABLE.
Mobile : 99436 99916, 99436 99926, 99436 99936
Mail ID: i3eprojectskarur@gmail.com
Web: www.i3etechnologies.com, www.i3eprojects.com
Ripple minimization through harmonic elimination in asymmetric interleaved mu...
I3E Technologies,
#23/A, 2nd Floor SKS Complex,
Opp. Bus Stand, Karur-639 001.
IEEE PROJECTS AVAILABLE,
NON-IEEE PROJECTS AVAILABLE,
APPLICATION BASED PROJECTS AVAILABLE,
MINI-PROJECTS AVAILABLE.
Mobile : 99436 99916, 99436 99926, 99436 99936
Mail ID: i3eprojectskarur@gmail.com
Web: www.i3etechnologies.com, www.i3eprojects.com
Resonance analysis and soft switching design of isolated boost converter with...
I3E Technologies,
#23/A, 2nd Floor SKS Complex,
Opp. Bus Stand, Karur-639 001.
IEEE PROJECTS AVAILABLE,
NON-IEEE PROJECTS AVAILABLE,
APPLICATION BASED PROJECTS AVAILABLE,
MINI-PROJECTS AVAILABLE.
Mobile : 99436 99916, 99436 99926, 99436 99936
Mail ID: i3eprojectskarur@gmail.com
Web: www.i3etechnologies.com, www.i3eprojects.com
Reliability evaluation of conventional and interleaved dc–dc boost converters
I3E Technologies,
#23/A, 2nd Floor SKS Complex,
Opp. Bus Stand, Karur-639 001.
IEEE PROJECTS AVAILABLE,
NON-IEEE PROJECTS AVAILABLE,
APPLICATION BASED PROJECTS AVAILABLE,
MINI-PROJECTS AVAILABLE.
Mobile : 99436 99916, 99436 99926, 99436 99936
Mail ID: i3eprojectskarur@gmail.com
Web: www.i3etechnologies.com, www.i3eprojects.com
Power factor corrected zeta converter based improved power quality switched m...
The document describes a proposed switched mode power supply (SMPS) system that uses a front-end power factor corrected Zeta converter to improve power quality. The front-end converter reduces 100-Hz ripple and improves power factor and voltage regulation. Simulation and testing of a laboratory prototype showed the proposed SMPS enhanced performance under varying input voltages and loading conditions, meeting international power quality standards.
Pfc cuk converter fed bldc motor drive
I3E Technologies,
#23/A, 2nd Floor SKS Complex,
Opp. Bus Stand, Karur-639 001.
IEEE PROJECTS AVAILABLE,
NON-IEEE PROJECTS AVAILABLE,
APPLICATION BASED PROJECTS AVAILABLE,
MINI-PROJECTS AVAILABLE.
Mobile : 99436 99916, 99436 99926, 99436 99936
Mail ID: i3eprojectskarur@gmail.com
Web: www.i3etechnologies.com, www.i3eprojects.com
Optimized operation of current fed dual active bridge dc dc converter for pv ...
This document discusses optimized operation of a current-fed dual active bridge DC-DC converter for photovoltaic applications. It analyzes the operating principle and soft-switching conditions over a wide operating range with phase shift and duty cycle control. An optimized operating mode is proposed to achieve minimum RMS transformer current and extend the soft-switching region to reduce losses. Experimental results from a 5 kW hardware prototype verify the analysis. Contact and location information is also provided for an organization that develops IEEE software and hardware projects.
Online variable topology type photovoltaic grid-connected inverter
I3E Technologies,
#23/A, 2nd Floor SKS Complex,
Opp. Bus Stand, Karur-639 001.
IEEE PROJECTS AVAILABLE,
NON-IEEE PROJECTS AVAILABLE,
APPLICATION BASED PROJECTS AVAILABLE,
MINI-PROJECTS AVAILABLE.
Mobile : 99436 99916, 99436 99926, 99436 99936
Mail ID: i3eprojectskarur@gmail.com
Web: www.i3etechnologies.com, www.i3eprojects.com
More from I3E Technologies (20)
An efficient constant multiplier architecture based on vertical horizontal bi...
An efficient constant multiplier architecture based on vertical horizontal bi...
Aging aware reliable multiplier design with adaptive hold logic
Aging aware reliable multiplier design with adaptive hold logic
A high performance fir filter architecture for fixed and reconfigurable appli...
A high performance fir filter architecture for fixed and reconfigurable appli...
A generalized algorithm and reconfigurable architecture for efficient and sca...
A generalized algorithm and reconfigurable architecture for efficient and sca...
A combined sdc sdf architecture for normal i o pipelined radix-2 fft
A combined sdc sdf architecture for normal i o pipelined radix-2 fft
Reverse converter design via parallel prefix adders novel components, method...
Reverse converter design via parallel prefix adders novel components, method...
Pre encoded multipliers based on non-redundant radix-4 signed-digit encoding
Pre encoded multipliers based on non-redundant radix-4 signed-digit encoding
Energy optimized subthreshold vlsi logic family with unbalanced pull up down ...
Energy optimized subthreshold vlsi logic family with unbalanced pull up down ...
Variable form carrier-based pwm for boost-voltage motor driver with a charge-...
Variable form carrier-based pwm for boost-voltage motor driver with a charge-...
Single inductor dual-output buck–boost power factor correction converter
Single inductor dual-output buck–boost power factor correction converter
Ripple minimization through harmonic elimination in asymmetric interleaved mu...
Ripple minimization through harmonic elimination in asymmetric interleaved mu...
Resonance analysis and soft switching design of isolated boost converter with...
Resonance analysis and soft switching design of isolated boost converter with...
Reliability evaluation of conventional and interleaved dc–dc boost converters
Reliability evaluation of conventional and interleaved dc–dc boost converters
Power factor corrected zeta converter based improved power quality switched m...
Power factor corrected zeta converter based improved power quality switched m...
Optimized operation of current fed dual active bridge dc dc converter for pv ...
Optimized operation of current fed dual active bridge dc dc converter for pv ...
Online variable topology type photovoltaic grid-connected inverter
Online variable topology type photovoltaic grid-connected inverter
Recently uploaded
Data Driven Maintenance | UReason Webinar
Discover the latest insights on Data Driven Maintenance with our comprehensive webinar presentation. Learn about traditional maintenance challenges, the right approach to utilizing data, and the benefits of adopting a Data Driven Maintenance strategy. Explore real-world examples, industry best practices, and innovative solutions like FMECA and the D3M model. This presentation, led by expert Jules Oudmans, is essential for asset owners looking to optimize their maintenance processes and leverage digital technologies for improved efficiency and performance. Download now to stay ahead in the evolving maintenance landscape.
官方认证美国密歇根州立大学毕业证学位证书原版一模一样
原版一模一样【微信：741003700 】【美国密歇根州立大学毕业证学位证书】【微信：741003700 】学位证，留信认证（真实可查，永久存档）offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原海外各大学 Bachelor Diploma degree, Master Degree Diploma
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
2008 BUILDING CONSTRUCTION Illustrated - Ching Chapter 02 The Building.pdf
2008 BUILDING CONSTRUCTION Illustrated - Ching Chapter 02 The Building
BRAIN TUMOR DETECTION for seminar ppt.pdf
BRAIN TUMOR DETECTION
AND CLASSIFICATION USING
ARTIFICIAL INTELLIGENCE
KuberTENes Birthday Bash Guadalajara - K8sGPT first impressions
K8sGPT is a tool that analyzes and diagnoses Kubernetes clusters. This presentation was used to share the requirements and dependencies to deploy K8sGPT in a local environment.
学校原版美国波士顿大学毕业证学历学位证书原版一模一样
原版一模一样【微信：741003700 】【美国波士顿大学毕业证学历学位证书】【微信：741003700 】学位证，留信认证（真实可查，永久存档）offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原海外各大学 Bachelor Diploma degree, Master Degree Diploma
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
Optimizing Gradle Builds - Gradle DPE Tour Berlin 2024
Sinan from the Delivery Hero mobile infrastructure engineering team shares a deep dive into performance acceleration with Gradle build cache optimizations. Sinan shares their journey into solving complex build-cache problems that affect Gradle builds. By understanding the challenges and solutions found in our journey, we aim to demonstrate the possibilities for faster builds. The case study reveals how overlapping outputs and cache misconfigurations led to significant increases in build times, especially as the project scaled up with numerous modules using Paparazzi tests. The journey from diagnosing to defeating cache issues offers invaluable lessons on maintaining cache integrity without sacrificing functionality.
cnn.pptx Convolutional neural network used for image classication
Convolutional Neural Network used for image classification
ISPM 15 Heat Treated Wood Stamps and why your shipping must have one
For International shipping and maritime laws all wood must contain the ISPM 15 Stamp. Here is how and why.
Comparative analysis between traditional aquaponics and reconstructed aquapon...
The aquaponic system of planting is a method that does not require soil usage. It is a method that only needs water, fish, lava rocks (a substitute for soil), and plants. Aquaponic systems are sustainable and environmentally friendly. Its use not only helps to plant in small spaces but also helps reduce artificial chemical use and minimizes excess water use, as aquaponics consumes 90% less water than soil-based gardening. The study applied a descriptive and experimental design to assess and compare conventional and reconstructed aquaponic methods for reproducing tomatoes. The researchers created an observation checklist to determine the significant factors of the study. The study aims to determine the significant difference between traditional aquaponics and reconstructed aquaponics systems propagating tomatoes in terms of height, weight, girth, and number of fruits. The reconstructed aquaponics system’s higher growth yield results in a much more nourished crop than the traditional aquaponics system. It is superior in its number of fruits, height, weight, and girth measurement. Moreover, the reconstructed aquaponics system is proven to eliminate all the hindrances present in the traditional aquaponics system, which are overcrowding of fish, algae growth, pest problems, contaminated water, and dead fish.
Recently uploaded (20)
2008 BUILDING CONSTRUCTION Illustrated - Ching Chapter 02 The Building.pdf
2008 BUILDING CONSTRUCTION Illustrated - Ching Chapter 02 The Building.pdf
Engineering Drawings Lecture Detail Drawings 2014.pdf
Engineering Drawings Lecture Detail Drawings 2014.pdf
Introduction to AI Safety (public presentation).pptx
Introduction to AI Safety (public presentation).pptx
KuberTENes Birthday Bash Guadalajara - K8sGPT first impressions
KuberTENes Birthday Bash Guadalajara - K8sGPT first impressions
Optimizing Gradle Builds - Gradle DPE Tour Berlin 2024
Optimizing Gradle Builds - Gradle DPE Tour Berlin 2024
cnn.pptx Convolutional neural network used for image classication
cnn.pptx Convolutional neural network used for image classication
ISPM 15 Heat Treated Wood Stamps and why your shipping must have one
ISPM 15 Heat Treated Wood Stamps and why your shipping must have one
Manufacturing Process of molasses based distillery ppt.pptx
Manufacturing Process of molasses based distillery ppt.pptx
Comparative analysis between traditional aquaponics and reconstructed aquapon...
Comparative analysis between traditional aquaponics and reconstructed aquapon...
Generative AI leverages algorithms to create various forms of content
Generative AI leverages algorithms to create various forms of content
Single active switch power electronics for kilowatt scale capacitive power transfer
- 1. SINGLE ACTIVE SWITCH POWER ELECTRONICS FOR KILOWATT SCALE CAPACITIVE POWER TRANSFER ABSTRACT: The development of capacitive power transfer (CPT) as a competitive wireless/contactless power transfer solution over short distances is proving viable in both consumer and industrial electronic products/systems. The CPT is usually applied in low-power applications, due to small coupling capacitance. Recent research has increased the coupling capacitance from the pF to the nF scale, enabling extension of CPT to kilowatt power level applications. This paper addresses the need of efficient power electronics suitable for CPT at higher power levels, while remaining cost effective. Therefore, to reduce the cost and losses single-switch–single-diode topologies are investigated. Four single active switch CPT topologies based on the canonical ´Cuk, SEPIC, Zeta, and Buck-boost converters are proposed and investigated. Performance tradeoffs within the context of a CPT system are presented and corroborated with experimental results. A prototype single active switch converter demonstrates 1-kW power transfer at a frequency of 200 kHz with >90% efficiency.