This Work deals with design, modeling and simulation of parallel cascaded
buck boost converter inverter based closed loop controlled solar system. Two
buck boost converters are cascaded in parallel to reduce the ripple in DC
output. The DC from the solar cell is stepped up using boost converter. The
output of the boost converter is converted to 50Hz AC using single phase full
bridge inverter. The simulation results of open loop and closed loop systems
are compared. This paper has presented a simulink model for closed loop
controlled solar system. Parallel cascaded buck boost converter is proposed
for solar system.
Abstract This paper presents different kind of SEPIC converter Topologies. Those are conventional SEPIC converter, multi resonant SEPIC converter and new resonant SEPIC converter. It is a type of dc-dc converters. It can deliver the output voltage that is less than or larger than the input voltage. It is a fourth order dc-dc converter. Basic operating principle of SEPIC converter is ZVS. MOSFET is used as the switch because of low voltage drop. Conventional SEPIC has two bulk inductors. Multi resonant SEPIC converter needs a resonant capacitor and resonant inductor. The bulk inductor reduces the response speed. The new resonant SEPIC converter has small size, excellent transient performance and higher efficiency. Efficient power conversion can be achieved by switched mode RF inverters like class E inverter. The new resonant SEPIC converter is a dc-dc converter with high frequency and efficiency. New resonant SEPIC converter operating at fixed frequency and duty ratio. It reduces the component count and eliminates the need of bulk inductor. The new resonant SEPIC converter is operating at switching frequency of 20 KHz and converter is simulated by using MAT LAB/SIMULINK for 3.6V input supply. Keywords: conventional SEPIC Converter, Multi resonant SEPIC converter, New resonant SEPIC converter, soft switching
Application of PWM Control Strategy on Z-Source Isolated Dual active bridge D...IJMER
This project presents a Z-source with bidirectional dc–dc converter. The switching count is
reduced by adding a passive element. Thus, we are improving the output voltage level. The voltage
regulation range of proposed converter is better than that of the traditional bidirectional dc–dc
converter. The fully bridge symmetrical circuit configuration, is neither a high-voltage side nor a lowvoltage
side in the circuit structure, and the sources connected to the dc side of each H-bridge circuit
with voltage sources and current sources. This method can reduce current stress and improves the
system efficiency.
In this paper we are presenting a dual active bridge (DAB) dc–dc converter is also known as
Bidirectional DC-DC converter. Both simulation results are shown by using MATLAB software.
Design and analysis of boost converter with cld celleSAT Journals
Abstract
In this paper, the output voltage in renewable energy sources is improved by using DC-DC converter topology. Basically Boost
converter is used for improving the voltage gain. In this converter switching frequency is limited, hence the output voltage is
reduced. To overcome this issue, by using the boost converter with CLD cell is proposed .In this proposed paper for comparing
the voltage stress and efficiency by using two converters topology. For the duty ratio of 0.5 the output voltage is compared with
the conventional boost converter.
Keywords- Boost Converter, Boost Converter with CLD, Voltage Stress
Abstract This paper presents different kind of SEPIC converter Topologies. Those are conventional SEPIC converter, multi resonant SEPIC converter and new resonant SEPIC converter. It is a type of dc-dc converters. It can deliver the output voltage that is less than or larger than the input voltage. It is a fourth order dc-dc converter. Basic operating principle of SEPIC converter is ZVS. MOSFET is used as the switch because of low voltage drop. Conventional SEPIC has two bulk inductors. Multi resonant SEPIC converter needs a resonant capacitor and resonant inductor. The bulk inductor reduces the response speed. The new resonant SEPIC converter has small size, excellent transient performance and higher efficiency. Efficient power conversion can be achieved by switched mode RF inverters like class E inverter. The new resonant SEPIC converter is a dc-dc converter with high frequency and efficiency. New resonant SEPIC converter operating at fixed frequency and duty ratio. It reduces the component count and eliminates the need of bulk inductor. The new resonant SEPIC converter is operating at switching frequency of 20 KHz and converter is simulated by using MAT LAB/SIMULINK for 3.6V input supply. Keywords: conventional SEPIC Converter, Multi resonant SEPIC converter, New resonant SEPIC converter, soft switching
Application of PWM Control Strategy on Z-Source Isolated Dual active bridge D...IJMER
This project presents a Z-source with bidirectional dc–dc converter. The switching count is
reduced by adding a passive element. Thus, we are improving the output voltage level. The voltage
regulation range of proposed converter is better than that of the traditional bidirectional dc–dc
converter. The fully bridge symmetrical circuit configuration, is neither a high-voltage side nor a lowvoltage
side in the circuit structure, and the sources connected to the dc side of each H-bridge circuit
with voltage sources and current sources. This method can reduce current stress and improves the
system efficiency.
In this paper we are presenting a dual active bridge (DAB) dc–dc converter is also known as
Bidirectional DC-DC converter. Both simulation results are shown by using MATLAB software.
Design and analysis of boost converter with cld celleSAT Journals
Abstract
In this paper, the output voltage in renewable energy sources is improved by using DC-DC converter topology. Basically Boost
converter is used for improving the voltage gain. In this converter switching frequency is limited, hence the output voltage is
reduced. To overcome this issue, by using the boost converter with CLD cell is proposed .In this proposed paper for comparing
the voltage stress and efficiency by using two converters topology. For the duty ratio of 0.5 the output voltage is compared with
the conventional boost converter.
Keywords- Boost Converter, Boost Converter with CLD, Voltage Stress
SIMULATION AND ASSESSMENT OF SINGLE PHASE SEMI-Z-SOURCE INVERTER (S-ZSI)IAEME Publication
The present investigation is a step towards the development of a single phase semi-Z-source inverter (s-ZSI) with photovoltaic, its topology and the assessment with respect to the voltage and current output. The proposed semi-Z-source inverter use only two active switches to achieve a desired output. The simulation was carried out using MATLAB and the results are discussed in various waveforms.
Design and Control of Switched-Inductor Quasi-Z-Source Inverter for Photovolt...irjes
The conventional Z-Source Inverter (ZSI) used for photovoltaic applications has certain
shortcomings such as high stress across the passive components and low boost factor. This paper presents the
design and analysis of three phase switched inductor quasi Z-source inverter (SL-QZSI) for photovoltaic (PV)
applications. The wide voltage gain and the compensation for dead time effect of SL-QZSI with the help of
shoot-through states makes it suitable for PV application. Modulation strategies such as Simple boost,
Maximum boost and Constant maximum boost control methods are investigated for the operation and control
of SL-QZSI. PV source is modeled in MATLAB and incremental & conductance MPPT algorithm is
implemented .Simulation of the SL-QZSI circuit powered by PV source is carried out by implementing
maximum boost control method and the performance parameters are discussed.
MATLAB Simulink for single phase PWM inverter in an uninterrupted power supplyIJMER
Now a day’s Uninterrupted power supply is very necessary for industry, and domestic purpose.
This paper presents the design and implementation of UPS for using personal computer. Here solar
energy is used for charging the battery in sunny days and in absence of solar energy it will automatically
connect to main AC supply. Also MATLAB simulation work is done for PWM single phase inverter and
full bridge rectifier.. Here microcontroller is used for switching between solar plate and main AC supply
to Battery. By using this method we can save our electricity bill which is consumed in charging of battery
SIMULATION ANALYSIS OF CLOSED LOOP DUAL INDUCTOR CURRENT-FED PUSH-PULL CONVER...Journal For Research
The current electronic devices require DC power source, which is taken from a battery or DC power supply. DC-DC converter is utilized to get regulated dc voltage from unregulated one. Switched mode power supply (SMPS) are commonly used in industrial applications, because of more advantages compared to linear power supply. In SMPS we have isolated and non-isolated converters, where isolated converters are frequently used, in order to get more voltage with multiple outputs. So among different isolated converters, push-pull converter is chosen for micro converter applications to obtain high voltage conversion ratio by using HF transformer, due to their better utilization of transformer. New methodology of control is implemented for making ZVS and ZCS at same time and to reduce the number of switches in the secondary side of dual inductor CFPP converter, which is a voltage doubler circuit. This becomes the solution for problem identification. Thus this converter with soft-switching reduces the switching losses.The current-fed push-pull converters are used in many applications like photo-voltaic (PV) power converters for boosting the output voltage. Push-pull converter is chosen for micro converter applications, to obtain high voltage conversion ratio by using high frequency (HF) transformer, due to their better utilization of transformer. This deals with the design of dual inductor CFPP converter, where zero voltage switching (ZVS) and zero current switching (ZCS) is achieved for the primary side of the converter by using secondary switches. Primary side switches are controlled by closed loop control topology. The secondary side is made with voltage doubler to obtain high voltage. Open loop and closed loop control of dual inductor current fed push pull converter simulation is finished by MATLAB/SIMULINK and their outcomes are analyzed.
This paper presents the simulation design of dc/dc interleaved boost converter with zero-voltage switching (ZVS). By employin the interleaved structure, the input current stresses to switching devices were reduced and this signified to a switching conduction loss reduction. All the parameters had been calculated theoretically. The proposed converter circuit was simulated by using MATLAB/Simulink and PSpice software programmes. The converter circuit model, with specifications of output power of 200 W, input voltage range from 10~60 V, and operates at 100 kHz switching frequency was simulated to validate the designed parameters. The results showed that the main switches of the model converter circuit achieved ZVS conditions during the interleaving operation. Consequently, the switching losses in the main switching devices were reduced. Thus, the proposed converter circuit model offers advantages of input current stress and switching loss reductions. Hence, based on the designed parameters and results, the converter model can be extended for hardware implementation.
International Journal of Engineering Research and Applications (IJERA) is a team of researchers not publication services or private publications running the journals for monetary benefits, we are association of scientists and academia who focus only on supporting authors who want to publish their work. The articles published in our journal can be accessed online, all the articles will be archived for real time access.
Our journal system primarily aims to bring out the research talent and the works done by sciaentists, academia, engineers, practitioners, scholars, post graduate students of engineering and science. This journal aims to cover the scientific research in a broader sense and not publishing a niche area of research facilitating researchers from various verticals to publish their papers. It is also aimed to provide a platform for the researchers to publish in a shorter of time, enabling them to continue further All articles published are freely available to scientific researchers in the Government agencies,educators and the general public. We are taking serious efforts to promote our journal across the globe in various ways, we are sure that our journal will act as a scientific platform for all researchers to publish their works online.
Space Vector of Three Phase Three level Neutral Point Clamped Quasi Z Source ...IJTET Journal
Space vector of three phase three level neutral point clamped quasi z source inverter is proposed in this paper. Space vector modulation is the pulse width modulation consists of number of switching states. Space vector pulse width modulation technique utilizes 15% more power from DC source. Harmonics are reduced by the presence of switching states. Quasi Z-source inverter is advanced topologies which performs both boost and buck operation of a converter. The proposed inverter obtains continuous input current and the boost converter is not needed. So, maximum voltage can be obtained in the load and system complexity is reduced. Maximum power can be obtained from the solar panel by using MPPT. The implementation of MPPT is to operate a PV array under constant voltage and power reference to modify the duty cycle of the inverter.The simulation of proposed topology is done in MATLAB/SIMULINK software.
A Single Phase Eleven Level Cascaded H-Bridge Multilevel Inverter for Photovo...IJMER
Abstract: A Cascaded H-Bridge Multilevel Inverter is a power electronic converter built to synthesize a desired ac voltage
from several levels of dc voltages with better harmonic spectrum. Such inverters are suitable for high voltage and high
power applications and have been an important development in recent years. This paper presents the performance of a
eleven level cascaded H-Bridge multilevel inverter topology with multicarrier pulse width modulation technique for
photovoltaic cell. This inverter is capable of producing eleven levels of output voltage from the dc supply voltage. This
topology magnifies the fundamental output voltage with reduction in total harmonic distortion . The output is drawn near the
sine wave because of more levels. It can also be easily extended to an m-level inverter. The performance of the proposed
PWM strategy in terms of output voltage and THD is shown using MATLAB/Simulink.
Keywords: Multilevel inverter, Cascaded H-Bridge multilevel inverter, Multicarrier pulse width modulation, PV cell, Total
harmonic distortion.
Improved Trans-Z-source Inverter for Automobile ApplicationIJTET Journal
In this paper a new technology is proposed with a replacement of conventional voltage source/current
source inverter with Improved Trans-Z-source inverter in automobile applications. The improved Trans-Z-source
inverter has a high boost inversion capability and continues input current. Also this new inverter can suppress the
resonant current at the startup; this resonant current in the startup may lead the device to permanent damage. In
improved Trans-Z-source inverter a couple inductor is needed, instead of this coupled inductor a transformer is used.
By using a transformer with sufficient turns ratio the size can be reduced. The turn’s ratio of the transformer decides
the input voltage of the inverter. In this paper operating principle, comparison with conventional inverters, working
with automobiles simulation results, THD analysis, Hardware implementation using ATMEGA 328 P are included.
This paper analyses the nonlinear phenomena in current mode controlled buck-boost converter. The system undergoes various operating regions whenever there is a change in non linear elements presented in the system as well as in the loads. In this work, inductor current is considered as the reference for analysis.The results show that the converter enters into period-1, periodic doubling and chaotic regions as per the parameter (IL) variations. The proposed control strategy, weak periodic perturbation (WPP) method tries to stabilize the system from the chaotic behavior.The buck boost converter along with the control system is simulated using MATLAB/SIMULINK software tool and the results are presented.The hardware implementation of the system is done and the results are verified with the simulation results. It shows that the WPP can transform the system behaviour from the chaotic region to the periodic one.
Performance and Analysis of Hybrid Multilevel Inverter fed Induction Motor Drivernvsubbarao koppineni
This paper presents the Five level inverter with single DC source which is used to generate a five level output with two bridges and six switches and performance of three phase induction motor is analyzed when connected to PV array For this two identical dc sources of 50V each for two bridges in five levels using Multi level inverter and five level output is obtained by using a single DC source of 100V with six switches. A virtual DC source (charged capacitor acts as virtual DC source) is used for getting the output. The same technique is implemented for three-phase circuit i.e. by using single DC source. An asynchronous motor (three-phase) is connected as load and its performance characteristics are analyzed. And further the DC source is replaced by a renewable resource such as solar panels, fuel cell etc. and DC voltage is obtained. Performance characteristics of three-phase asynchronous motor are analyzed with PV array connected. The method can be easily extended to an m-level inverter.
Improvement In Pre-Regulation For Power Factor Using CUK ConverterIJRES Journal
Cuk converters, operating in Discontinuous Capacitor Voltage Mode can achieve unity power factor when used as rectifiers with no need of duty-cycle modulation. This operating mode causes high voltage stresses across the semiconductors, calling for high-voltage switches like IGBT's. However, zero-voltage turn-off is achieved, resulting in limited power loss even at high frequency. Both current- and voltage-fed approaches as well as constant- and variable-frequency control are analyzed in the paper. Simulation and experimental results are Explained, which demonstrate actual converter performance. Most of the power factor regulator topologies in continuous conduction mode result in bulky magnetic, and in discontinuous conduction mode result in high harmonic content. To solve these problems a Cuk topology is presented in discontinuous conduction mode with coupled inductors for power factor regulation, the unique feature exhibited by the converter that makes the converter better than the other converter in operation for power factor regulation. Inductive coupling is used to transfer the ripple from the input to the output side thereby reducing the switching harmonics in the line current. Experimental results obtained on a some Watt prototype are also presented.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Implementation of multi level inverter for SEPIC Converter with Grid-Connecte...ali13jf1a0321
This project represent the photovoltaic cell which is connected to transformer less grid.in this project we are using SEPIC converter against Buck-Boost converter which reduces the losses.
NON-ISOLATED SOFT SWITCHING DC-DC CONVERTER AND LOAD AT FULL RANGE OF ZVS IAEME Publication
A non isolated soft switching DC–DC converter and load at full range of zero-voltage
switching (ZVS) characteristic is proposed. The proposed converter consists of an auxiliary circuit,
an inductor, two switches, and 2 diodes to achieving high efficiency at full range of load. At low
and heavy loads, ZVS of switching device is achieved by energy storing component. The inductor
energy stored varies with load and hence results in minimizes conduction loss. This leads to
switching of device for full range of load. The proposed DC - DC converter achieves high
efficiency as switching loss is reduced due to soft switching and ZVS operation which severe to
reduce conduction loss. The efficiency is improved about 4% in boost mode (2.5% in buck mode) at
full range of load. To verify the performance of the proposed converter, experimental results
prototype are presented.
SIMULATION AND ASSESSMENT OF SINGLE PHASE SEMI-Z-SOURCE INVERTER (S-ZSI)IAEME Publication
The present investigation is a step towards the development of a single phase semi-Z-source inverter (s-ZSI) with photovoltaic, its topology and the assessment with respect to the voltage and current output. The proposed semi-Z-source inverter use only two active switches to achieve a desired output. The simulation was carried out using MATLAB and the results are discussed in various waveforms.
Design and Control of Switched-Inductor Quasi-Z-Source Inverter for Photovolt...irjes
The conventional Z-Source Inverter (ZSI) used for photovoltaic applications has certain
shortcomings such as high stress across the passive components and low boost factor. This paper presents the
design and analysis of three phase switched inductor quasi Z-source inverter (SL-QZSI) for photovoltaic (PV)
applications. The wide voltage gain and the compensation for dead time effect of SL-QZSI with the help of
shoot-through states makes it suitable for PV application. Modulation strategies such as Simple boost,
Maximum boost and Constant maximum boost control methods are investigated for the operation and control
of SL-QZSI. PV source is modeled in MATLAB and incremental & conductance MPPT algorithm is
implemented .Simulation of the SL-QZSI circuit powered by PV source is carried out by implementing
maximum boost control method and the performance parameters are discussed.
MATLAB Simulink for single phase PWM inverter in an uninterrupted power supplyIJMER
Now a day’s Uninterrupted power supply is very necessary for industry, and domestic purpose.
This paper presents the design and implementation of UPS for using personal computer. Here solar
energy is used for charging the battery in sunny days and in absence of solar energy it will automatically
connect to main AC supply. Also MATLAB simulation work is done for PWM single phase inverter and
full bridge rectifier.. Here microcontroller is used for switching between solar plate and main AC supply
to Battery. By using this method we can save our electricity bill which is consumed in charging of battery
SIMULATION ANALYSIS OF CLOSED LOOP DUAL INDUCTOR CURRENT-FED PUSH-PULL CONVER...Journal For Research
The current electronic devices require DC power source, which is taken from a battery or DC power supply. DC-DC converter is utilized to get regulated dc voltage from unregulated one. Switched mode power supply (SMPS) are commonly used in industrial applications, because of more advantages compared to linear power supply. In SMPS we have isolated and non-isolated converters, where isolated converters are frequently used, in order to get more voltage with multiple outputs. So among different isolated converters, push-pull converter is chosen for micro converter applications to obtain high voltage conversion ratio by using HF transformer, due to their better utilization of transformer. New methodology of control is implemented for making ZVS and ZCS at same time and to reduce the number of switches in the secondary side of dual inductor CFPP converter, which is a voltage doubler circuit. This becomes the solution for problem identification. Thus this converter with soft-switching reduces the switching losses.The current-fed push-pull converters are used in many applications like photo-voltaic (PV) power converters for boosting the output voltage. Push-pull converter is chosen for micro converter applications, to obtain high voltage conversion ratio by using high frequency (HF) transformer, due to their better utilization of transformer. This deals with the design of dual inductor CFPP converter, where zero voltage switching (ZVS) and zero current switching (ZCS) is achieved for the primary side of the converter by using secondary switches. Primary side switches are controlled by closed loop control topology. The secondary side is made with voltage doubler to obtain high voltage. Open loop and closed loop control of dual inductor current fed push pull converter simulation is finished by MATLAB/SIMULINK and their outcomes are analyzed.
This paper presents the simulation design of dc/dc interleaved boost converter with zero-voltage switching (ZVS). By employin the interleaved structure, the input current stresses to switching devices were reduced and this signified to a switching conduction loss reduction. All the parameters had been calculated theoretically. The proposed converter circuit was simulated by using MATLAB/Simulink and PSpice software programmes. The converter circuit model, with specifications of output power of 200 W, input voltage range from 10~60 V, and operates at 100 kHz switching frequency was simulated to validate the designed parameters. The results showed that the main switches of the model converter circuit achieved ZVS conditions during the interleaving operation. Consequently, the switching losses in the main switching devices were reduced. Thus, the proposed converter circuit model offers advantages of input current stress and switching loss reductions. Hence, based on the designed parameters and results, the converter model can be extended for hardware implementation.
International Journal of Engineering Research and Applications (IJERA) is a team of researchers not publication services or private publications running the journals for monetary benefits, we are association of scientists and academia who focus only on supporting authors who want to publish their work. The articles published in our journal can be accessed online, all the articles will be archived for real time access.
Our journal system primarily aims to bring out the research talent and the works done by sciaentists, academia, engineers, practitioners, scholars, post graduate students of engineering and science. This journal aims to cover the scientific research in a broader sense and not publishing a niche area of research facilitating researchers from various verticals to publish their papers. It is also aimed to provide a platform for the researchers to publish in a shorter of time, enabling them to continue further All articles published are freely available to scientific researchers in the Government agencies,educators and the general public. We are taking serious efforts to promote our journal across the globe in various ways, we are sure that our journal will act as a scientific platform for all researchers to publish their works online.
Space Vector of Three Phase Three level Neutral Point Clamped Quasi Z Source ...IJTET Journal
Space vector of three phase three level neutral point clamped quasi z source inverter is proposed in this paper. Space vector modulation is the pulse width modulation consists of number of switching states. Space vector pulse width modulation technique utilizes 15% more power from DC source. Harmonics are reduced by the presence of switching states. Quasi Z-source inverter is advanced topologies which performs both boost and buck operation of a converter. The proposed inverter obtains continuous input current and the boost converter is not needed. So, maximum voltage can be obtained in the load and system complexity is reduced. Maximum power can be obtained from the solar panel by using MPPT. The implementation of MPPT is to operate a PV array under constant voltage and power reference to modify the duty cycle of the inverter.The simulation of proposed topology is done in MATLAB/SIMULINK software.
A Single Phase Eleven Level Cascaded H-Bridge Multilevel Inverter for Photovo...IJMER
Abstract: A Cascaded H-Bridge Multilevel Inverter is a power electronic converter built to synthesize a desired ac voltage
from several levels of dc voltages with better harmonic spectrum. Such inverters are suitable for high voltage and high
power applications and have been an important development in recent years. This paper presents the performance of a
eleven level cascaded H-Bridge multilevel inverter topology with multicarrier pulse width modulation technique for
photovoltaic cell. This inverter is capable of producing eleven levels of output voltage from the dc supply voltage. This
topology magnifies the fundamental output voltage with reduction in total harmonic distortion . The output is drawn near the
sine wave because of more levels. It can also be easily extended to an m-level inverter. The performance of the proposed
PWM strategy in terms of output voltage and THD is shown using MATLAB/Simulink.
Keywords: Multilevel inverter, Cascaded H-Bridge multilevel inverter, Multicarrier pulse width modulation, PV cell, Total
harmonic distortion.
Improved Trans-Z-source Inverter for Automobile ApplicationIJTET Journal
In this paper a new technology is proposed with a replacement of conventional voltage source/current
source inverter with Improved Trans-Z-source inverter in automobile applications. The improved Trans-Z-source
inverter has a high boost inversion capability and continues input current. Also this new inverter can suppress the
resonant current at the startup; this resonant current in the startup may lead the device to permanent damage. In
improved Trans-Z-source inverter a couple inductor is needed, instead of this coupled inductor a transformer is used.
By using a transformer with sufficient turns ratio the size can be reduced. The turn’s ratio of the transformer decides
the input voltage of the inverter. In this paper operating principle, comparison with conventional inverters, working
with automobiles simulation results, THD analysis, Hardware implementation using ATMEGA 328 P are included.
This paper analyses the nonlinear phenomena in current mode controlled buck-boost converter. The system undergoes various operating regions whenever there is a change in non linear elements presented in the system as well as in the loads. In this work, inductor current is considered as the reference for analysis.The results show that the converter enters into period-1, periodic doubling and chaotic regions as per the parameter (IL) variations. The proposed control strategy, weak periodic perturbation (WPP) method tries to stabilize the system from the chaotic behavior.The buck boost converter along with the control system is simulated using MATLAB/SIMULINK software tool and the results are presented.The hardware implementation of the system is done and the results are verified with the simulation results. It shows that the WPP can transform the system behaviour from the chaotic region to the periodic one.
Performance and Analysis of Hybrid Multilevel Inverter fed Induction Motor Drivernvsubbarao koppineni
This paper presents the Five level inverter with single DC source which is used to generate a five level output with two bridges and six switches and performance of three phase induction motor is analyzed when connected to PV array For this two identical dc sources of 50V each for two bridges in five levels using Multi level inverter and five level output is obtained by using a single DC source of 100V with six switches. A virtual DC source (charged capacitor acts as virtual DC source) is used for getting the output. The same technique is implemented for three-phase circuit i.e. by using single DC source. An asynchronous motor (three-phase) is connected as load and its performance characteristics are analyzed. And further the DC source is replaced by a renewable resource such as solar panels, fuel cell etc. and DC voltage is obtained. Performance characteristics of three-phase asynchronous motor are analyzed with PV array connected. The method can be easily extended to an m-level inverter.
Improvement In Pre-Regulation For Power Factor Using CUK ConverterIJRES Journal
Cuk converters, operating in Discontinuous Capacitor Voltage Mode can achieve unity power factor when used as rectifiers with no need of duty-cycle modulation. This operating mode causes high voltage stresses across the semiconductors, calling for high-voltage switches like IGBT's. However, zero-voltage turn-off is achieved, resulting in limited power loss even at high frequency. Both current- and voltage-fed approaches as well as constant- and variable-frequency control are analyzed in the paper. Simulation and experimental results are Explained, which demonstrate actual converter performance. Most of the power factor regulator topologies in continuous conduction mode result in bulky magnetic, and in discontinuous conduction mode result in high harmonic content. To solve these problems a Cuk topology is presented in discontinuous conduction mode with coupled inductors for power factor regulation, the unique feature exhibited by the converter that makes the converter better than the other converter in operation for power factor regulation. Inductive coupling is used to transfer the ripple from the input to the output side thereby reducing the switching harmonics in the line current. Experimental results obtained on a some Watt prototype are also presented.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Implementation of multi level inverter for SEPIC Converter with Grid-Connecte...ali13jf1a0321
This project represent the photovoltaic cell which is connected to transformer less grid.in this project we are using SEPIC converter against Buck-Boost converter which reduces the losses.
NON-ISOLATED SOFT SWITCHING DC-DC CONVERTER AND LOAD AT FULL RANGE OF ZVS IAEME Publication
A non isolated soft switching DC–DC converter and load at full range of zero-voltage
switching (ZVS) characteristic is proposed. The proposed converter consists of an auxiliary circuit,
an inductor, two switches, and 2 diodes to achieving high efficiency at full range of load. At low
and heavy loads, ZVS of switching device is achieved by energy storing component. The inductor
energy stored varies with load and hence results in minimizes conduction loss. This leads to
switching of device for full range of load. The proposed DC - DC converter achieves high
efficiency as switching loss is reduced due to soft switching and ZVS operation which severe to
reduce conduction loss. The efficiency is improved about 4% in boost mode (2.5% in buck mode) at
full range of load. To verify the performance of the proposed converter, experimental results
prototype are presented.
High Frequency Soft Switching Of PWM Boost Converter Using Auxiliary Resonant...IJERA Editor
This thesis presents High frequency Soft Switching DC-DC boost Converter. The circuit consists of a general Boost Converter with an additional resonant circuit which has a switch, inductor, capacitor and a diode.In general Boost Converter circuits have snubber circuits where switching losses are dissipated in external passive resistors; which is known as hard switching. As the switching frequency of PWM converters is increased its switching losses and conduction losses also increases. This restricts the use of PWM technique. New Zero Voltage Transition-Zero Current Transition (ZVT-ZCT) PWM converter equipped with the snubber provides the most desirable features of both ZVT and ZCT converters presented previously. Moreover all semiconductors devices operate with soft switching and hence losses are reduced.
Review of Step down Converter with Efficient ZVS OperationIJRST Journal
This paper presents the review of step down converter with efficient ZVS operation. The designed buck converter uses ZCS technique and the function is realized so that the power form is converted from 12V DC 5V DC (1A). A detailed analysis of zero current switching buck converters is performed and a mathematical analysis of the mode of operation is also presented. In order to reduce the switching losses in associated with conventional converters; resonant inductor and resonant capacitor (LC resonant circuit) is applied which helps to turn on-off the switch at zero current. The dc-dc buck converter receives the energy from the input source, when the switch is turned-on. The buck–buck converters have characteristics that warrant a more detailed study. The buck converters under discontinuous conduction mode /continuous conduction mode boundary.
International Journal of Engineering Research and DevelopmentIJERD Editor
Electrical, Electronics and Computer Engineering,
Information Engineering and Technology,
Mechanical, Industrial and Manufacturing Engineering,
Automation and Mechatronics Engineering,
Material and Chemical Engineering,
Civil and Architecture Engineering,
Biotechnology and Bio Engineering,
Environmental Engineering,
Petroleum and Mining Engineering,
Marine and Agriculture engineering,
Aerospace Engineering.
Photovoltaic System with SEPIC Converter Controlled by the Fuzzy LogicIAES-IJPEDS
In this work, a fuzzy logic controller is used to control the output voltage of a
photovoltaic system with a DC-DC converter; type Single Ended Primary
Inductor Converter (SEPIC). The system is designed for 210 W solar
photovoltaic (SCHOTT 210) panel and to feed an average demand of 78 W.
This system includes solar panels, SEPIC converter and fuzzy logic
controller. The SEPIC converter provides a constant DC bus voltage and its
duty cycle controlled by the fuzzy logic controller which is needed to
improve PV panel’s utilization efficiency. A fuzzy logic controller (FLC) is
also used to generate the PWM signal for the SEPIC converter.
Design and Simulation of Efficient DC-DC Converter Topology for a Solar PV Mo...Sajin Ismail
Modulated Integrated Converter systems are considered to be the new and global turning point in the field of
Solar PV systems. These converters are highly recognised for its modular size and compact nature and they are supposed to
be attached directly with each PV module and since one PV module is having the power rating of a few watts ranging from
0-500Ws, the design rating would be in the same range and thus the most vital condition in such a design is efficiency
under these relatively low loads. In this paper an isolated interleaved boost converter topology is considered in the DC-DC
section and which is designed and simulated for a specific power rating (250W) and the efficiency is analysed with varying
load conditions and compared with the target efficiency of the system.
In order to meet the increase in energy demand globally it is necessary to harness renewable energy at its maximum potential for the purpose of electric power generation. For the achievement of high output voltage and efficiency DC-DC converters plays a vital role in low voltage PV array and fuel cells. LUO converters are gaining importance because of geometric progression output. . LUO converters find its application because of high transient performance of the system, high power transfer gain, efficiency and reduced ripple .Because of load and line disturbances the output voltage of DC-DC converter must be operated in closed loop mode. This paper interpolates multitudinous controller for positive output elementary super lift LUO converter (POESLL). The pursuance of the converter under manifold such as variation in input, load are developed and compared for current mode controller and SMC.
Speed Control Of Separately Excited Dc Motor Using A High Efficiency Flyback ...IJERA Editor
This paper deals with Speed control of separately excited DC motor using flyback converter with a new non complementary active clamp control method to achieve soft switching and high efficiency for heavy motor load and light load conditions. This is quite attractive for low power application with universal ac inputs, such as external adaptors. With the proposed control technique, the energy in the leakage inductance can be fully recycled. The soft switching can be achieved for the main switch and the absorbed leakage energy is transferred to the output and input side. In the Proposed model the resistive and DC motor is connected to flyback converter and it is simulated with different nominal voltages and rated speed is controlled at different levels for the N-type active clamp flyback converter and P-type active clamp flyback converter respectively. N-type active clamp flyback converter is suitable for high speed variation applications and P-type active clamp flyback converter is suitable for low speed variation applications.
This paper proposes an alternative topology of an inverter to the existing topologies available in the market. A prototype is intended with the purpose of investigates the possibility of designing an inverter using two Boost Converters. This project initialized with a series of simulations using Matlab in order to determine the feasibility of the proposed topology. The next step is the design and development of the proposed prototype where suitable electronics components are chosen based on the simulation result. A PIC microcontroller is used to control the proposed prototype where a control scheme is created based on the programming in the microcontroller. The performance of the proposed prototype has been verified to be optimum by several practical testing using different values of capacitor, inductor and duty cycle. Lastly, data and analysis are presented in a proper mannered way. In the end, this project intends to produce stepped-up square wave output voltage waveform by proper controlling of two Boost Converters.
A Integrated Technique of SIDO PFC Fly back Converter in power systemIJMTST Journal
Energy saving is the major international efforts to control down the global warming .Power electronics based devices has being improving day by day for saving the electrical energy in the power grids. The govt. of India is also contributing several projects based on energy conservation. The Designing of a single-inductor dual output (SIDO) fly-back power factor correction (PFC) converter is proposed, in which the PFC and power conversion are done at the same time, multiplexing of a single-inductor is implemented through which each output can be regulated independently. The converter will be operating under in critical conduction mode (CRM). A SIDO PFC converter is a system of dual efficient DC output obtained from the AC source, it can also be replaced by solar panel and our system is capable of running a dc motor also, fly back converter can be used in both ac-dc and dc-dc conversion process. The efficiency along with power factor, total harmonic distortion (THD), settling time and output accuracy of this converter will be improved by implementing the neural network as controllers in the system
A new closed loop AC to DC ĈUK converter is presented in this paper. The conventional ĈUK AC to DC converter has no feedback circuit. Thereby, the output voltage of the converter changes while changing the load. The proposed closed loop converter can regulate voltage with the variation of load over a wide range. Moreover, the power factor and Total Harmonic Distortion (THD) of the supply side current found quite satisfactory from this closed loop ĈUK converter. The converter operates in four steps with a different combination of voltage polarities and switching states. The feedback path consists of a voltage control loop and a current control loop. The closed loop ĈUK converter in this study is compared with the open loop version. Additionally, the comparison is made with the conventional converter of the same topology. The effectiveness in terms of power factor and THD of the proposed converter is verified using simulation results.
Similar to Modeling and Simulation of Closed Loop Controlled Parallel Cascaded Buck Boost Converter Inverter Based Solar System (20)
Inter-Area Oscillation Damping using an STATCOM Based Hybrid Shunt Compensati...IJPEDS-IAES
FACTS devices are one of the latest technologies which have been used to
improve power system dynamic and stability during recent years. However,
widespread adoption of this technology has been hampered by high cost
and reliability concerns. In this paper an economical phase imbalanced shunt
reactive compensation concept has been introduced and its ability for power
system dynamic enhancement and inter-area oscillation damping are
investigated. A hybrid phase imbalanced scheme is a shunt capacitive
compensation scheme, where two phases are compensated by fixed shunt
capacitor (C) and the third phase is compensated by a Static Synchronous
Compensator (STATCOM) in shunt with a fixed capacitor (CC). The power
system dynamic stability enhancement would be achieved by adding
a conventional Wide Area Damping Controller (WADC) to the main control
loop of the single phase STATCOM. Two different control methodologies
are proposed: a non-optimized conventional damping controller
and a conventional damping controller with optomised parameters that are
added to the main control loop of the unbalanced compensator in order to
damp the inter area oscillations. The proposed arrangement would, certainly,
be economically attractive when compared with a full three-phase
STATCOM. The proposed scheme is prosperously applied in a 13-bus
six-machine test system and various case studies are conducted to
demonstrate its ability in damping inter-area oscillations and power system
dynamic enhancement.
Fuzzy Gain-Scheduling Proportional–Integral Control for Improving the Speed B...IJPEDS-IAES
In this article, we have set up a vector control law of induction machine
where we tried different type of speed controllers. Our control strategy is of
type Field Orientated Control (FOC). In this structure we designed a Fuzzy
Gain-Scheduling Proportional–Integral (Pi) controller to obtain best result
regarding the speed of induction machine. At the beginning we designed a Pi
controller with fixed parameters. We came up to these parameters by
identifying the transfer function of this controller to that of Broïda (second
order transfer function). Then we designed a fuzzy logic (FL) controller.
Based on simulation results, we highlight the performances of each
controller. To improve the speed behaviour of the induction machine, we
have designend a controller called “Fuzzy Gain-Scheduling Proportional–
Integral controller” (FGS-PI controller) which inherited the pros of the
aforementioned controllers. The simulation result of this controller will
strengthen its performances.
Advance Technology in Application of Four Leg Inverters to UPQCIJPEDS-IAES
This article presents a novel application of four leg inverter with
conventional Sinusoidal Pulse Width Modulation (SPWM) Scheme to
Unified Power Quality Conditioner (UPQC). The Power Quality problem
became burning issues since the starting of high voltage AC transmission
system. Hence, in this article it has been discussed to mitigate the PQ issues
in high voltage AC systems through a three phase Unified Power Quality
Conditioner (UPQC) under various conditions, such as harmonic mitigation
scheme, non linear loads, sag and swell conditions as well. Also, it proposes
to control harmoincs with various artificial intelligent techniques. Thus
application of these control technique such as Neural Networks (ANN)
Fuzzy Logic makes the system performance in par with the standards
and also compared with existing system. The simulation results based on
MATLAB/Simulink are discussed in detail to support the concept developed
in the paper.
Modified SVPWM Algorithm for 3-Level Inverter Fed DTC Induction Motor DriveIJPEDS-IAES
In this paper, a modified space vector pulse width modulation (MSVPWM)
algorithm is developed for 3-level inverter fed direct torque controlled
induction motor drive (DTC-IMD). MSVPWM algorithm simplifies
conventional space vector pulse width modulation (CSVPWM) algorithm for
multilevel inverter (MLI), whose complexity lies in sector/subsector/subsubsector
identification; which will commensurate with number of levels. In
the proposed algorithm sectors are identified as in two level inverter
and subsectors/sub-subsectors are identified by shifting the original reference
vector to sector 1 (S1). This is valid due to the fact that a three level space
vector plane is a composition of six two level space planes, and are
symmetrical with reference to six pivot states. Switching state/sequence
selection is also very important while dealing with SVPWM strategy for
MLI. In the proposed algorithm out of 27 available switching states apt
switching state is selected based on sector and subsector number, such that
voltage ripple is considerably less. To validate the proposed algorithm, it is
tested on a three level neutral point clamped (NPC) inverter fed DTC-IMD.
The performance of the MSVPWM algorithm is analyzed by comparing no
load stator current ripple of the three level DTC-IMD with two level
DTC-IMD. Significant reduction in steady state torque and flux ripple is
observed. Hence, reduced acoustic noise is a distinctive facet of the proposed
method.
Modelling of a 3-Phase Induction Motor under Open-Phase Fault Using Matlab/Si...IJPEDS-IAES
The d-q model of Induction Motors (IMs) has been effectively used as an
efficient method to analyze the performance of the induction machines. This
study presents a step by step Matlab/Simulink implementation
of a star-connected 3-phase IM under open-phase fault (faulty 3-phase IM)
using d-q model. The presented technique in this paper can be simply
implemented in one block and can be made available for control purposes.
The simulated results provide to show the behavior of the star-connected 3-phase IM under open-phase fault condition.
Performance Characteristics of Induction Motor with FielIJPEDS-IAES
With development of power electronics and control Theories, the AC motor
control becomes easier. So the AC motors are used instead of the DC motor
in the drive applications. With this development, a several methods of control
are invented. The field oriented control and direct torque control are from the
best methods to control the drive systems. This paper is compared between
the field oriented control and direct torque control to show the advantages
and disadvantages of these methods of controls. This study discussed the
effects of these methods of control on the total harmonic distortion of the
current and torque ripples. This occurs through study the performance
characteristics of the AC motor. The motor used in this study is an induction
motor. This study is simulated through the MATLAB program.
A Novel Modified Turn-on Angle Control Scheme for Torque- Ripple Reduction in...IJPEDS-IAES
In recent years, Switched Reluctance Motors (SRM) have been dramatically
considered with both researchers and industries. SRMs not only have a
simple and reliable structure, but also have low cost production process.
However, discrete torque production of SRM along with intensive magnetic
saturation in stator and rotor cores are the major drawbacks of utilizing in
variety of industrial applications and also causes the inappropriate torque
ripples. In this paper, a modified logical-rule-based Torque Sharing Function
(TSF) method is proposed considering turn-on angle control. The optimized
turn-on angle for conducting each phase is achieved by estimating the
inductance curve in the vicinity of unaligned position and based on an
analytical solution for each phase voltage equation. Simulation results on a
four-phase switched reluctance motor and comparison with the conventional
methods validates the effectiveness of the proposed method.
Modeling and Simulation of Induction Motor based on Finite Element AnalysisIJPEDS-IAES
This paper presents the development of a co-simulation platform of induction
motor (IM). For the simulation, a coupled model is introduced which
contains the control, the power electronics and also the induction machine.
Each of these components is simulated in different software environments.
So, this study provides an advanced modeling and simulation tools for IM
which integrate all the components into one common simulation platform
environment. In this work, the IM is created using Ansys-Maxwell based on
Finite Element Analysis (FEA), whereas the power electronic converter is
developed in Ansys-Simplorer and the control scheme is build in MATLABSimulink
environment. Such structure can be useful for accurate design
and allows coupling analysis for more realistic simulation. This platform is
exploited to analyze the system models with faults caused by failures of
different drive’s components. Here, two studies cases are presented: the first
is the effects of a faulty device of the PWM inverter, and the second case is
the influence of the short circuit of two stator phases. In order to study the
performance of the control drive of the IM under fault conditions,
a co-simulation of the global dynamic model has been proposed to analyze
the IM behavior and control drives. In this work, the co-simulation has been
performed; furthermore the simulation results of scalar control allowed
verifying the precision of the proposed FEM platform.
Comparative Performance Study for Closed Loop Operation of an Adjustable Spee...IJPEDS-IAES
In this paper an extensive comparative study is carried out between PI
and PID controlled closed loop model of an adjustable speed Permanent
Magnet Synchronous Motor (PMSM) drive. The incorporation of Sinusoidal
Pulse Width Modulation (SPWM) strategy establishes near sinusoidal
armature phase currents and comparatively less torque ripples without
sacrificing torque/weight ratio. In this closed loop model of PMSM drive, the
information about reference speed is provided to a speed controller, to ensure
that actual drive speed tracks the reference speed with ideally zero steady
state speed error. The entire model of PMSM closed loop drive is divided
into two loops, inner loop current and outer loop speed. By taking the
different combinations of two classical controllers (PI & PID) related with
two loop control structure, different approximations are carried out. Hence a
typical comparative study is introduced to familiar with the different
performance indices of the system corresponding to time domain and
frequency domain specifications. Therefore overall performance of closed
loop PMSM drive is tested and effectiveness of controllers will be
determined for different combinations.
Novel Discrete Components Based Speed Controller for Induction MotorIJPEDS-IAES
This paper presents an electronic design based on general purpose discrete
components for speed control of a single phase induction motor drive. The
MOSFETs inverter switching is controlled using Sampled Sinusoidal Pulse
Width Modulation (SPWM) techniques with V/F method based on Voltage
Controlled Oscillator (VCO). The load power is also controlled by a novel
design to produce a suitable SPWM pulse. The proposed electronic system
has ability to control the output frequency with flexible setting of lower limit
to less than 1 Hz and to higher frequency limits to 55 Hz. Moreover, the
proposed controller able to control the value of load voltage to frequency
ratio, which plays a major parameter in the function of IM speed control.
Furthermore, the designed system is characterized by easy manufacturing
and maintenance, high speed response, low cost, and does not need to
program steps as compared to other systems based on Microcontroller
and digital signal processor (DSP) units. The complete proposed electronic
design is made by the software of NI Multisim version 11.0 and all the
internal sub-designs are shown in this paper. Simulation results show the
effectiveness of electronic design for a promising of a high performance IM
PWM drive.
Sensorless Control of a Fault Tolerant PMSM Drives in Case of Single-Phase Op...IJPEDS-IAES
This paper introduces a sensorless-speed-controlled PMSM motor fed by a
four-leg inverter in case of a single phase open circuit fault regardless in
which phase is the fault. To minimize the system performance degradation
due to a single phase open circuit fault, a fault tolerant control strategy that
includes taking appropriate actions to control the two remaining healthy
currents is used in addition to use the fourth leg of the inverter. Tracking the
saliency is done through measuring the dynamic current responses of the
healthy phases of the PMSM motor due the IGBT switching actions using the
fundamental PWM method without introducing any modification to the
operation of the fourth leg of the inverter. Simulation results are provided to
verify the effectiveness of the proposed strategy for sensorless controlling of
a PMSM motor driven by a fault-tolerant four-phase inverter over a wide
speed ranges under the case of a single phase open circuit.
Improved Stator Flux Estimation for Direct Torque Control of Induction Motor ...IJPEDS-IAES
Stator flux estimation using voltage model is basically the integration of the
induced stator back electromotive force (emf) signal. In practical
implementation the pure integration is replaced by a low pass filter to avoid
the DC drift and saturation problems at the integrator output because of the
initial condition error and the inevitable DC components in the back emf
signal. However, the low pass filter introduces errors in the estimated stator
flux which are significant at frequencies near or lower than the cutoff
frequency. Also the DC components in the back emf signal are amplified at
the low pass filter output by a factor equals to . Therefore, different
integration algorithms have been proposed to improve the stator flux
estimation at steady state and transient conditions. In this paper a new
algorithm for stator flux estimation is proposed for direct torque control
(DTC) of induction motor drives. The proposed algorithm is composed of a
second order high pass filter and an integrator which can effectively
eliminates the effect of the error initial condition and the DC components.
The amplitude and phase errors compensation algorithm is selected such that
the steady state frequency response amplitude and phase angle are equivalent
to that of the pure integrator and the multiplication and division by stator
frequency are avoided. Also the cutoff frequency selection is improved; even
small value can filter out the DC components in the back emf signal. The
simulation results show the improved performance of the induction motor
direct torque control drive with the proposed stator flux estimation algorithm.
The simulation results are verified by the experimental results.
Minimization of Starting Energy Loss of Three Phase Induction Motors Based on...IJPEDS-IAES
The purpose of this paper is to minimize energy losses consumed by three
phase induction motors during starting with wide range of load torque from
no load to full load. This will limit the temperature rise and allows for more
numbers of starting during a definite time. Starting energy losses
minimization is achieved by controlling the rate of increasing voltage
and frequency to start induction motor under certain load torque within a
definite starting time. Optimal voltage and frequency are obtained by particle
swarm optimization (PSO) tool according to load torque. Then, outputs of the
PSO are used to design a neuro-fuzzy controller to control the output voltage
and frequency of the inverter during starting for each load torque. The
starting characteristics using proposed method are compared to that of direct
on line and V/F methods. A complete model of the system is developed using
SIMULINK/MATLAB.
Hardware Implementation of Solar Based Boost to SEPIC Converter Fed Nine Leve...IJPEDS-IAES
Multi level inverters are widely used in high power applications because of
low harmonic distortion. This paper deals with the simulation
and implementation of PV based boost to SEPIC converter with multilevel
inverter. The output of PV system is stepped up using boost to sepic
converter and it is converted into AC using a multilevel inverter.
The simulation and experimental results with the R load is presented in this
paper. The FFT analysis is done and the THD values are compared. Boost to
SEPIC converter is proposed to step up the voltage to the required value. The
experimental results are compared with the simulation results. The results
indicate that nine level inverter system has better performance than seven
level inverter system.
Transformer Less Voltage Quadrupler Based DC-DC Converter with Coupled Induct...IJPEDS-IAES
In this paper a voltage quadrupler dc-dc converter with coupled inductor
and π filter is presented. The use of the coupled inductor reduces the high
leakage inductance which is present in a transformer enabled converter.
The output ripples in the converter is reduced by providing a π filter.
The interleaved voltage quadrupler is used in this system in order to boost the
output voltage. The voltage multiplier improves the output voltage gain.
The main advantage of this system is more voltage gain when compared with
the transformer eneabled circuit and the overall efficiency of the system is
improved. The circuit is simple to control. As a final point of this research,
the simulation and the hardware investigational results are presented to
demonstrate the effectiveness of this proposed converter.
IRAMY Inverter Control for Solar Electric VehicleIJPEDS-IAES
Solar Electric Vehicles (SEV) are considered the future vehicles to solve the issues of air pollution, global warming, and the rapid decreases of the petroleum resources facing the current transportation technology. However, SEV are still facing important technical obstacles to overcome. They include batteries energy storage capacity, charging times, efficiency of the solar panels and electrical propulsion systems. Solving any of those problems and electric vehicles will compete-complement the internal combustion engines vehicles. In the present work, we propose an electrical propulsion system based on three phase induction motor in order to obtain the desired speed and torque with less power loss. Because of the need to lightweight nature, small volume, low cost, less maintenance and high efficiency system, a three phase squirrel cage induction motor (IM) is selected in the electrical propulsion system. The IM is fed from three phase inverter operated by a constant V/F control method and Space Vector Pulse Width Modulation (SVPWM) algorithm. The proposed control strategy has been implemented on the texas instruments TM320F2812 Digital Signal Processor (DSP) to generate SVPWM signal needed to trigger the gates of IGBT based inverter. The inverter used in this work is a three phase inverter IRAMY20UP60B type. The experimental results show the ability of the proposed control strategy to generate a three-phase sine wave signal with desired frequency. The proposed control strategy is experimented on a locally manufactured EV prototype. The results show that the EV prototype can be propelled to speed up to 60km/h under different road conditions.
Design and Implementation of Single Phase AC-DC Buck-Boost Converter for Powe...IJPEDS-IAES
This paper discusses the Power Factor Correction (PFC) for single phase AC-DC Buck-Boost Converter (BBC) operated in Continuous Conduction Mode (CCM) using inductor average current mode control. The proposed control technique employs Proportional-Integral (PI) controller in the outer voltage loop and the Inductor Average Current Mode Control (IACMC) in the inner current loop for PFC BBC. The IACMC has advantages such as robustness when there are large variations in line voltage and output load. The PI controller is developed by using state space average model of BBC. The simulation of the proposed system with its control circuit is implemented in MatLab/Simulink. The simulation results show a nearly unity power factor can be attained and there is almost no change in power factor when the line frequency is at various ranges. Experimental results are provided to show its validity and feasibility.
Improvement of Wind farm with PMSG using STATCOMIJPEDS-IAES
This paper studies about the dynamic performance of the Permanent Magnet Synchronous Generator with Static Synchronous Compensator (STATCOM) for Wind farm integration. A whole dynamic model of wind energy conversion system (WECS) with PMSG and STATCOM are established in a MATLAB environment. With this model the dynamic behaviour of the generator and the overall system has been studied to determine the performance of them with and without STATCOM. Final results portrays that the WECS based PMSG with STATCOM improves the transient response of the wind farm when the system is in fault.
Modeling and Control of a Doubly-Fed Induction Generator for Wind Turbine-Gen...IJPEDS-IAES
This paper presents a vector control direct (FOC) of double fed induction generator intended to control the generated stator powers. This device is intended to be implemented in a variable-speed wind-energy conversion system connected to the grid. In order to control the active and reactive power exchanged between the machine stator and the grid, the rotor is fed by a bi-directional converter. The DFIG is controlled by standard relay controllers. Details of the control strategy and system simulation were performed using Simulink and the results are presented in this here to show the effectiveness of the proposed control strategy.
A Review on Design and Development of high Reliable Hybrid Energy Systems wit...IJPEDS-IAES
Hybrid Energy system is a combination of two or more different types of energy resources. Now a day this hybrid energy system plays key role in various remote area power applications. Hybrid energy system is more reliable than single energy system. This paper deals with high reliable hybrid energy system with solar, wind and micro hydro resources. The proposed hybrid system cable of multi mode operation and high reliable due to non communicated based controllers (Droop Characteristic Control) are used for optimal power sharing. Size of battery can be reduced because hydro used as back up source and Maximum power point Tracking also applied to solar and wind energy systems.
NO1 Uk best vashikaran specialist in delhi vashikaran baba near me online vas...Amil Baba Dawood bangali
Contact with Dawood Bhai Just call on +92322-6382012 and we'll help you. We'll solve all your problems within 12 to 24 hours and with 101% guarantee and with astrology systematic. If you want to take any personal or professional advice then also you can call us on +92322-6382012 , ONLINE LOVE PROBLEM & Other all types of Daily Life Problem's.Then CALL or WHATSAPP us on +92322-6382012 and Get all these problems solutions here by Amil Baba DAWOOD BANGALI
#vashikaranspecialist #astrologer #palmistry #amliyaat #taweez #manpasandshadi #horoscope #spiritual #lovelife #lovespell #marriagespell#aamilbabainpakistan #amilbabainkarachi #powerfullblackmagicspell #kalajadumantarspecialist #realamilbaba #AmilbabainPakistan #astrologerincanada #astrologerindubai #lovespellsmaster #kalajaduspecialist #lovespellsthatwork #aamilbabainlahore#blackmagicformarriage #aamilbaba #kalajadu #kalailam #taweez #wazifaexpert #jadumantar #vashikaranspecialist #astrologer #palmistry #amliyaat #taweez #manpasandshadi #horoscope #spiritual #lovelife #lovespell #marriagespell#aamilbabainpakistan #amilbabainkarachi #powerfullblackmagicspell #kalajadumantarspecialist #realamilbaba #AmilbabainPakistan #astrologerincanada #astrologerindubai #lovespellsmaster #kalajaduspecialist #lovespellsthatwork #aamilbabainlahore #blackmagicforlove #blackmagicformarriage #aamilbaba #kalajadu #kalailam #taweez #wazifaexpert #jadumantar #vashikaranspecialist #astrologer #palmistry #amliyaat #taweez #manpasandshadi #horoscope #spiritual #lovelife #lovespell #marriagespell#aamilbabainpakistan #amilbabainkarachi #powerfullblackmagicspell #kalajadumantarspecialist #realamilbaba #AmilbabainPakistan #astrologerincanada #astrologerindubai #lovespellsmaster #kalajaduspecialist #lovespellsthatwork #aamilbabainlahore #Amilbabainuk #amilbabainspain #amilbabaindubai #Amilbabainnorway #amilbabainkrachi #amilbabainlahore #amilbabaingujranwalan #amilbabainislamabad
Forklift Classes Overview by Intella PartsIntella Parts
Discover the different forklift classes and their specific applications. Learn how to choose the right forklift for your needs to ensure safety, efficiency, and compliance in your operations.
For more technical information, visit our website https://intellaparts.com
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Using recycled concrete aggregates (RCA) for pavements is crucial to achieving sustainability. Implementing RCA for new pavement can minimize carbon footprint, conserve natural resources, reduce harmful emissions, and lower life cycle costs. Compared to natural aggregate (NA), RCA pavement has fewer comprehensive studies and sustainability assessments.
6th International Conference on Machine Learning & Applications (CMLA 2024)ClaraZara1
6th International Conference on Machine Learning & Applications (CMLA 2024) will provide an excellent international forum for sharing knowledge and results in theory, methodology and applications of on Machine Learning & Applications.
CW RADAR, FMCW RADAR, FMCW ALTIMETER, AND THEIR PARAMETERSveerababupersonal22
It consists of cw radar and fmcw radar ,range measurement,if amplifier and fmcw altimeterThe CW radar operates using continuous wave transmission, while the FMCW radar employs frequency-modulated continuous wave technology. Range measurement is a crucial aspect of radar systems, providing information about the distance to a target. The IF amplifier plays a key role in signal processing, amplifying intermediate frequency signals for further analysis. The FMCW altimeter utilizes frequency-modulated continuous wave technology to accurately measure altitude above a reference point.
We have compiled the most important slides from each speaker's presentation. This year’s compilation, available for free, captures the key insights and contributions shared during the DfMAy 2024 conference.
2. ISSN: 2088-8694
IJPEDS Vol. 6, No. 3, September 2015 : 648 – 656
649
cascade converter topology with series-connected symmetrical and asymmetrical diode-clamped H-Bridge
cells [3]. An efficient high-step-up interleaved DC-DC converter with a common active clamp [4].
Transformerless grid connected power converter for PV system [5, 6]. Adaptive fuzzy controlled wind
energy system [8]. Distribution voltage control for DC microgrid using stored energy [9]. Predictive
controlled bi-directional inverter for microgrid applications [10]. Characterization and testing of a tool for
photovoltaic panel modeling [11]. Analysis and simulation of characteristics and maximum power point
tracking for photovoltaic systems [12]. Comparison of photovoltaic array maximum power point tracking
techniques [13]. New Approach to Photovoltaic Arrays Maximum Power Point Tracking [14]. Modeling and
Control for a Bidirectional Buck– Boost Cascade Inverter [15]. A Multilevel Inverter for Photovoltaic
Systems with Fuzzy Logic Control [16]. A Direct DC-link Boost Voltage PID-like FuzzyControl Strategy in
Z-Source Inverter [17]. A Maximum Power Point Tracking of PV System by Scaling Fuzzy Control [18]. A
closed -Loop Maximum power point Tracker for Sub watt Photovoltaic Panels [19]. Grid - Connected Boost-
Half-Bridge Photovoltaic Micro inverter System Using Repetitive Current Control and Maximum power
point tracking [20]. Stability of a boost converter fed from a photovoltaic source [21]. Unified Approach to
Reliability Assessment of Multiphase DC-DC Converters in Photovoltaic Energy Conversion Systems [22].
Safety enhanced high stepup DC-DC Converter for AC Photovoltaic Module Application [23]. Optimization
and design of a cascaded DC/DC Converter Devoted to gridconnected photovoltaic System [24]. Controller
design for integrated PV-converter modules under partial shading conditions [25].
The above literature does not cover modelling and simulation of closed loop controlled buck boost
converter inverter based system. Closed loop parallel cascaded buck boost converter inverter system is not
reported in the literature. This work aims to develop closed loop simulink model for buck boost converter -
inverter based solar system.
Figure 1. Schematic diagram of non-isolated buck-boost converter
2. OPERATIONAL CIRCUIT FOR BUCK-BOOST CONVERTER
The basic principle of the buck–boost converter is fairly simple while in the On-state, the input
voltage source is directly connected to the inductor (L). This results in accumulating energy in L. In this
stage, the capacitor supplies energy to the output load. While in the Off-state, the inductor is connected to the
output load and capacitor, so energy is transferred from L to C and R. Compared to the buck and boost
converters, the characteristics of the buck–boost converter are mainly polarity of the output voltage is
opposite to that of the input; the output voltage can vary continuously from 0 to (for an ideal converter). The
output voltage ranges for a buck and a boost converter are respectively 0 to and to ∞.
The buck and boost converters, the operation of the buck-boost is best understood in terms of the
inductor's "reluctance" to allow rapid change in current. From the initial state in which nothing is charged and
the switch is open, the current through the inductor is zero. When the switch is first closed, the blocking
diode prevents current from flowing into the right hand side of the circuit, so it must all flow through the
inductor. However, since the inductor doesn't like rapid current change, it initially keeps the current low by
dropping most of the voltage provided by the source. Over time, the inductor allows the current to slowly
increase by decreasing its voltage drop. Also during this time, the inductor stores energy in the form of a
magnetic field.
2.1. CONTINUOUS MODE
If the current through the inductor L never falls to zero during a commutation cycle, the converter is
said to operate in continuous mode.
From t=0 to t=DT, the converter is in On-State, so the switch S is closed. The rate of change in the
inductor current (IL) is therefore given by
3. IJPEDS ISSN: 2088-8694
Modeling and Simulation of Closed Loop Controlled Parallel Cascaded Buck Boost …(T. Sundar)
650
… … … … 1
At the end of the On-state, the increase of IL is therefore
∆
… … … … 2
D is the duty cycle. It represents the fraction of the commutation period T during which the switch is
ON. Therefore D ranges between 0 (S is never on) and 1 (S is always on).
During the Off-state, the switch S is open, so the inductor current flows through the load. If we
assume zero voltage drop in the diode, and a capacitor large enough for its voltage to remain constant, the
evolution of IL is
… … … … 3
Therefore, the variation of IL during the Off-period is
∆
1
… … … … 4
As we consider that the converter operates in steady-state conditions, the amount of energy stored in
each of its components has to be the same at the beginning and at the end of a commutation cycle. As the
energy in an inductor is given by
1
2
… … … … 5
It is clear that the value of IL at the end of the off state must be the same with the value of IL at the
beginning of the On-state, i.e. the sum of the variations of IL during the on and the off states must be zero
∆ ∆ 0 … … … … 6
Substituting ∆ and ∆ by their expressions yields
∆ ∆
1
0 … … … … 7
This can be written as
1
… … … … 8
This in return yields that
… … … … 9
From the above expression it can be observed that the polarity of the output voltage is always
negative (because the duty cycle goes from 0 to 1), and that its absolute value increases with D, theoretically
up to minus infinity when D approaches 1. Apart from the polarity, this converter is either step-up (a boost
converter) or step-down (a buck converter). Thus it is named a buck–boost converter.
2.2. DISCONTINUOUS MODE
In some cases, the amount of energy required by the load is small enough to be transferred in a time
smaller than the whole commutation period. In this case, the current through the inductor falls to zero during
part of the period. The only difference in the principle described above is that the inductor is completely
discharged at the end of the commutation cycle although slight; the difference has a strong effect on the
4. ISSN: 2088-8694
IJPEDS Vol. 6, No. 3, September 2015 : 648 – 656
651
output voltage equation. It can be calculated as follows, because the inductor current at the beginning of the
cycle is zero, its maximum value at (t=DT) is
… … … … 10
During the off-period, IL falls to zero after δ.T
0 … … … … 11
Using the two previous equations, δ is
… … … … 12
The load current is equal to the average diode current .The diode current is equal to the inductor
current during the off-state. Therefore, the output current can be written as
2
… … … … 13
Replacing and δ by their respective expressions yields
2
… … … … 14
Therefore, the output voltage gain can be written as
2
… … … … 15
Compared to the expression of the output voltage gain for the continuous mode, this expression is
much more complicated. Furthermore, in discontinuous operation, the output voltage not only depends on the
duty cycle, but also on the inductor value, the input voltage and the output current.
The converter operates in discontinuous mode when low current is drawn by the load, and in
continuous mode at higher load current levels. The limit between discontinuous and continuous modes is
reached when the inductor current falls to zero exactly at the end of the commutation cycle.
In this case, the output current (output current at the limit between continuous and
discontinuous modes) is given by:
2
1 … … … … 16
Replacing by the expression given in the discontinuous mode section yields
2
1 … … … … 17
As is the current at the limit between continuous and discontinuous modes of operations, it
satisfies the expressions of both modes. Therefore, using the expression of the output voltage in continuous
mode, the previous expression can be written as:
2
… … … … 18
5. IJPEDS ISSN: 2088-8694
Modeling and Simulation of Closed Loop Controlled Parallel Cascaded Buck Boost …(T. Sundar)
652
Let's now introduce two more notations, the normalized voltage, defined by | | . It corresponds
to the gain in voltage of the converter, the normalized current, defined by | | . The term is equal
to the maximum increase of the inductor current during a cycle; i.e., the increase of the inductor current with
a duty cycle D=1. So, in steady state operation of the converter, this means that | | equals 0 for no output
current, and 1 for the maximum current the converter can deliver.
Using these notations, we have
in continuous mode | | ;
in discontinuous mode, | |
| |
;
The current at the limit between continuous and discontinuous mode is 1 .
Therefore the locus of the limit between continuous and discontinuous modes is given by
| |
1 1 .
3. TWO-STAGE PV INVERTER SYSTEM WITH BOOST-TYPE MPPTs
Nowadays, a conventional two-stage configuration is usually adopted in the PV inverter systems.
Each MPPT is realized with a boost converter to step up the PV-array voltage close to the specified DC-link
voltage, as shown in Figure 2. The boost converter is operated in by-pass mode when the PV-array voltage is
higher than the DC-link voltage, However, since the characteristics of PV arrays are different from each
other, the inverter operated in by-pass mode cannot track each individual maximum power point accurately,
and the inverter suffers from as high-voltage stress as the open voltage of the arrays. To release this
limitation, an MPPT topology, which combines buck and boost converters is proposed in this study, in which
the control algorithm for tracking maximum power points is based on a perturbation and observation method.
The MPPT will switch operation modes between buck and boost when the output voltage of a PV array is
close to the DC-bus voltage. The designed controller can switch control laws to achieve smooth mode
transition and fulfill online configuration check for the MPPTs, which can be either separate or in parallel
connection, to draw the maximum power from the PV arrays more effectively. Additionally, a uniform
current control scheme is introduced to the controller to equally distribute the PV array output current to the
two MPPTs in parallel operation.
Figure 2. Conventional two-stage PV inverter system with Boost-type MPPTs
To reduce leakage ground current circulating through PV arrays and ground, several transformerless
inverter topologies were proposed. Even though they can achieve high efficiency, they require more
components than the conventional full-bridge topology. Thus, in this study, the bidirectional full-bridge
inverter is operated with bipolar modulation to avoid leakage ground current and to save power components
while still sustaining comparatively high efficiency to those in. Note that a full-bridge inverter operated with
bipolar modulation can achieve only low frequency common-mode voltage (VC M = (Vdc − Vs ) / 2), resulting
in low leakage ground current.
To maintain the DC-bus voltage for the grid-connected inverter, the controls, such as robust,
adaptive, and fuzzy, were adopted. When adopting these controls for the studied DC-distribution system, a
heavy step-load change at the DC-bus side will cause high DC-bus voltage variation and fluctuation, and the
system might run abnormally or drop into under or over voltage protection. Bulky DC-bus capacitors can be
adopted to increase the hold-up time and suppress the fluctuation of the DC-bus voltage, but it will increase
6. ISSN: 2088-8694
IJPEDS Vol. 6, No. 3, September 2015 : 648 – 656
653
the size and cost of the system significantly. Additionally, even though there are approaches to achieve fast
DC-bus voltage dynamics, the systems with load connected to the DC bus have not been studied yet.
4. SIMULATION RESULTS
Open loop system with step change in insolation is shown in Figure 3. Two buck boost converters
are connected in parallel to increase the power rating. The step change in input due to increase in the solar
energy is shown in Figure 4a. The output voltage of boost converter is shown in Figure 4b. The voltage
increases from 320V to 390V. The AC output voltage and load current are shown in Figure 4c and Figure 4d
respectively. It can be seen that the steady state error in the output voltage and current is higher.
Figure 3. Open loop system
Figure 4a. Input Voltage Figure 4b. Output Voltage of Boost Converter
Figure 4c. Output Voltage of Inverter Figure 4d. Output Current of Inverter
Figure 4. Simulation results of the open loop of two buck boost converters
7. IJPEDS ISSN: 2088-8694
Modeling and Simulation of Closed Loop Controlled Parallel Cascaded Buck Boost …(T. Sundar)
654
The Simulink diagram of closed loop system is shown in Figure 5. The DC output voltage of the
boost converter is sensed and it is compared with the reference voltage. The error is processed using a PI
controller. The output of the PI controller is used to update the pulse width applied to the buck boost
converter. The step change in input voltage is shown in Figure 6a. The input voltage increases from 10V to
14V. The output of the boost converter is shown in Figure 6b. The output decreases and settles at 240V. The
output voltage and current waveforms are shown in Figure 6c and Figure 4d respectively. They are inphase
since the load is a resistive load.
Figure 5. Simulink Model of Closed Loop System
Figure 6a. Input Voltage Figure 6b. Output Voltage of the Boost Converter
Figure 6c. Output Voltage of the Inverter Figure 6d. Output Current of the Inverter
Figure 6. Simulation results of the closed loop of two buck boost converters
5. CONCLUSION
Closed loop controlled parallel cascaded buck boost converter inverter system is successfully
modelled and simulated using sim power system. The results of open loop and closed loop systems are
presented. The closed loop system is capable of reducing the steady state error. The simulation results are in
line with the predications. The closed system has advantages like improved response and reduced steady state
8. ISSN: 2088-8694
IJPEDS Vol. 6, No. 3, September 2015 : 648 – 656
655
error. The disadvantage of this system is that it has limited voltage tracking range. The contribution of this
work is to propose a parallel cascaded buck boost converter to improve the npower rating and reduce the
inverter input current ripple.
The scope of this work is the simulation of closed loop controlled converter-inverter system with PI
controller. The closed loop simulation using fuzzy controller will be done in future.
REFERENCES
[1] L.N. Khanh, J.J. Seo, T.S. Kim and D.J. Won, “Power Management strategies for a grid connected PV-FC hybrid
system”, IEEE Trans. Power Devliv., vol. 25, no. 3, pp. 1874-1882, Jul. 2010.
[2] Y.K. Tan and S.K. Panda, “Optimized wind energy harvesting system using resistance emulator and active rectifier
for wireless sensor nodes”, IEEE Trans. Power Electron, vol. 26, no. 1, pp. 38-50, Jan. 2011.
[3] A. Nami, F. Zare, A. Ghosh, and F. Blaabjerg, “A hybrid cascade converter topology with series-connected
symmetrical and asymmetrical diode-clamped H-Bridge cells”, IEEE Trans. Power Electron, vol. 26, no. 1, 51–65,
Jan. 2011.
[4] S. Dwari and L. Parsa, “An efficient high-step-up interleaved dc–dc converter with a common active clamp”, IEEE
Trans. Power Electron, vol. 26, no. 1, pp. 66–78, Jan. 2011.
[5] J.M. Shen, H.L. Jou, and J.C. Wu, “Novel transformerless grid connected power converter with negative grounding
for photovoltaic generation system”, IEEE Trans. Power Electron, vol. 27, no. 4, pp. 1818–1829, Apr. 2012.
[6] T. Kerekes, R. Teodorescu, P. Rodriguez, G. Vazquez, and E. Aldabas, “A new high-efficiency single-phase
transformerless PV inverter topology”, IEEE Trans. Ind. Electron, vol. 58, no. 1, pp. 184–191, Jan. 2011.
[7] S.V. Araujo, P. Zacharias, and R. Mallwitz, “Highly efficient single-phase transformerless inverters for grid-
connected photovoltaic systems”, IEEE Trans. Ind.Electron, vol. 57, no. 9, pp. 3118–3128, Sep. 2010.
[8] M.A. Azzouz and A.L. Elshafei, “An adaptive fuzzy regulation of the dc-bus voltage in wind energy conversion
systems”, in Proc. 2010 IEEE Int. Conf. CCA, pp. 1193–1198.
[9] H. Kakigano, A. Nishino, Y. Miura, and T. Ise, “Distribution voltage control for dc microgrid by converters of
energy storages considering the stored energy”, in Proc. 2010 IEEE ECCE, pp. 2851–2856.
[10] T.F. Wu, K.H. Sun, C.L. Kuo, and C.H. Chang, “Predictive current controlled 5 kW single-phase bi-directional
inverter with wide inductance variation for DC-microgrid applications”, IEEE Trans. Power Electron, vol. 25, no.
12, pp. 3076–3084, Dec. 2010.
[11] F. Adamo, F. Attivissimo, A. Di Nisio, and M. Spadavecchia, “Characterization and testing of a tool for
photovoltaic panel modeling”, IEEE Trans.Instrum. Meas., vol. 60, no. 5, pp. 1613–1622, May 2011.
[12] T.C. Yu and T.S. Chien, “Analysis and simulation of characteristics and maximum power point tracking for
photovoltaic systems”, in Proceedings of the International Conference on Power Electronics and Drive Systems
(PEDS ’09), pp. 1339–1344, January 2009.
[13] T. Esram and P.L. Chapman, “Comparison of photovoltaic array maximum power point tracking techniques”, IEEE
Trans. Energy Convers, vol. 22, no. 2, pp. 439–449, Jun. 2007.
[14] Brambilla. A, Gambarara. M, Garutti. A, Ronchi. F, “New Approach to Photovoltaic Arrays Maximum Power
Point Tracking”, 30th Annual IEEE Power Electronics Specialists Conference, Vol. 2, pp. 632 - 637, 1999.
[15] Honglin Zhou, Shuai Xiao, Geng Yang, Hua Geng, "Modeling and Control for a Bidirectional Buck– Boost
Cascade Inverter", IEEE Transactions on power electronics, Vol. 27, No. 3, March 2012, pp 1401-1413.
[16] C. Cecati, F. Ciancetta, and P. Siano, "A Multilevel Inverter for Photovoltaic Systems With Fuzzy Logic Control",
IEEE Transactions on Industrial Electronics, Vol. 57, No. 12, December 2010 pp. 4115-4125.
[17] X.P. Ding, Z.M. Qian, S.T. Yang, B. Cui, and F.Z. Peng. “A Direct DC-link Boost Voltage PID-like Fuzzy Control
Strategy in Z-Source Inverter”, IEEE, 2008, pp. 405-411.
[18] Y.H. Chang and C.Y. Chang, "A Maximum Power Point Tracking of PV System by Scaling Fuzzy Control",
presented at International Multi Conference of Engineers and Computer Scientists, Hong Kong, 2010.
[19] Oscar Lopez-Lapena, Maria Teresa Penella, and Manel Gasulla. 2012. “A closed -Loop Maximum power point
Tracker for Sub watt Photovoltaic Panels”. IEEE Transactions on Industrial Electronics. 59(3).
[20] Shuai Jiang, Dong Cao, Yuan Li and Fang Zheng Peng. 2012. “Grid - Connected Boost-Half-Bridge Photovoltaic
Micro inverter System Using Repetitive Current Control and Maximum power point tracking”. IEEE Transactions
on power Electronics. 27(11).
[21] Abdullah Abusorrah, Mohammed. M., Al-Hindawi, Yusuf Al-Turki, Kuntal Mandal, Damian Giaouris, Soumitro
Banerjee, Spyros Voutetakis and Simira Papadopoulou. 2013. “Stability of a boost converter fed from a
photovoltaic source”. Solar energy. 98: 458-471.
[22] Sairaj V. Dhople, Ali Davoudi, Alejandro D. Dominguez-Garcia and Patrick L. Chapman. 2012. “A unified
Approach to Reliability Assessment of Multiphase DC-DC Converters in Photovoltaic Energy Conversion
Systems”. IEEE Transactions on power Electronics. 27(2).
[23] Shih-Ming Chen, Tsorng Juu, Liang, Lung Sheng and Jiann Fuh Chen. 2012. “A safety enhanced high stepup DC-
DC Converter for AC Photovoltaic Module Application”. IEEE Transactions on power electronics. 27(4).
[24] Stephane vighetti, jean-Paul ferrieux and Y veslembeye. 2012. “Optimization and design of a cascaded DC/DC
Converter Devoted to gridconnected photovoltaic System”. IEEE Transaction on power electronics. 27(4).
[25] Chong B.V. P and Zhang. L. 2012. “Controller design for integrated PV-converter modules under partial shading
conditions”. Solar energy. 92: 123-138.
9. IJPEDS ISSN: 2088-8694
Modeling and Simulation of Closed Loop Controlled Parallel Cascaded Buck Boost …(T. Sundar)
656
BIOGRAPHIES OF AUTHORS
T. Sundar is a Research Scholar in the Dept. of EIE, SCSVMV University, Kanchipuram. He is
doing research in the field of PV system using Advanced Instrumentation System. He is a
research scholar in SCSVMV University. His area of interest is PV Systems and their Control.
S. Sankar obtained his B.E Degree in Electrical & Electronics Engineering at Sri Venkateswara
College of Engineering, from Madras University and M.E (Power System) Degree from
Annamalai University Chidambaram. He has done his Ph.D in the area of FACTS controllers.
His research interests are in the area of FACTS and PV systems. He has published papers on
IPFC and Converter.