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Papers by PRAKASH BAHRANI

Research paper thumbnail of Study of Different ANFIS Approaches for Battery Charging in Closed Loop Control System

Majority ofRenewable Energy System (RES) operates on isolated mode and the battery storage device... more Majority ofRenewable Energy System (RES) operates on isolated mode and the battery storage device is one of its major part to store the energy for off-peak hour supplies. Many battery charging methods are incorporated for optimal use of battery and temperature is one of key factor for enhancing the life cycle of the battery. An existing closed loop PID controller system addressing controlled temperature charging of Li-Ion battery is considered for analysis. Development of Artificial Intelligence (AI) techniques, the charging time can be considerably reduced within permissible limit of battery temperature rise. Fuzzy logic control (FLC) is one of the most efficient technique, which incorporates human knowledge to address complex nonlinear problems. In the present paper, four different membership functions of premise-consequence parametersin Adaptive Network based Fuzzy Inference System (ANFIS) training are analyzed to reduce the time of charging. The simulation results compare existing PID control with four different parameter approach for two different initial State of Charge (SoC) of 4.2 V Li-Ion battery.

Research paper thumbnail of Performance Analysis of P and FLC Method of MPPT for PV Module Based on Five-Parameter Model

Algorithms for Intelligent Systems, 2021

Research paper thumbnail of Comprehensive Review on maximum power point tracking methods for SPV system

Power generation from solar source is increasing exponentially due to requirement of green energy... more Power generation from solar source is increasing exponentially due to requirement of green energy is increased. In view of the threat of scarcity of conventional resources like coal, gas and fossil fuels etc. In last few years many researchers worked on solar system to develop system that can extract as much as power from solar irradiations. MPPT is a technique that includes further methods of tracking power. In the research carried out it is observed more than 30 methods under different categories track maximum power from PV system.

Research paper thumbnail of An Analysis of DC-DC Converter with Solar PV System by Implantation Perturb & Observe MPPT Technique

Power generation from solar source is increasing exponentially as requirement of power and load i... more Power generation from solar source is increasing exponentially as requirement of power and load increasing. Due to thread of collapsing conventional sources, power generation from renewable sources is needed to adopt to fulfill future requirements. There are some problems faced in their generation are their variable inputs from solar radiations in case of solar energy source. This variation in radiations causes variation in output power and this is not healthy for output power requirements. It causes distortions in system parameters. From last few years, researchers are working on converter control techniques. These are used to control duty cycle of converter thyristor. In this purposed work perturb and observe (P&O) technique are implemented with Buck, Boost and Buck-Boost converters to observe the various output response. Comparison is carried out for the analysis of these controllers and a system that is not controlled for outcome with the specific requirement of particular conve...

Research paper thumbnail of Comparative Study of Maximum Power Point Techniques

This paper aimed to study the behavior of different maximum power point tracking (MPPT) technique... more This paper aimed to study the behavior of different maximum power point tracking (MPPT) techniques applied to PV systems. In this work, techniques such as incremental conductance (INC), perturb-and-observe (P&O), and fuzzy logic controller (FLC) are assessed. The response of the different MPPT techniques is evaluated in rapidly changing weather conditions. The results indicate that, INC performed best among compared MPPT techniques followed by P&O, FLC and HC MPPT techniques in both dynamic response and steady-state in most of the normal operating range.

Research paper thumbnail of The Comparative Study of Combined Incremental Conductance-Fuzzy Logic Algorithm with Conventional Incremental Conductance Algorithm MPPT Technique for SPV System

This paper illustrated a hybrid MPPT composed of two methods: incremental conductance (INC) and F... more This paper illustrated a hybrid MPPT composed of two methods: incremental conductance (INC) and Fuzzy Logic (FL) control. This method is able to track maximum power point (MPP) under variable solar irradiance. In addition to that, it generates a modulation signal to adjust the duty cycle of boost converter to ensure fast MPPT process. In order to validate both of the effectiveness and the usefulness of the proposed system, simulation analysis and comparative studies including other known methods are conducted. The results show that the proposed method can track MPP under different solar irradiance and can reduce fluctuation around MPP area.

Research paper thumbnail of Performance Analysis of Standalone Solar Generation System with Fuzzy and ZVS Converter

Volume IV Issue II, February 2019, 2019

This present work focuses on the development of resonant converter (DC-DC converter) for solar en... more This present work focuses on the development of resonant converter (DC-DC converter) for solar energy conversion system (SECS). It accentuations on plan and exhibiting periods of the distinctive constituents of the SECS like the rudimentary model of zero voltage switching (ZVS) converter, inverter, fuzzy logic controller, best maximum power point tracking system utilizing MATLAB/Simulink. Here, a resonant converter represents the static and dynamic characteristics of an actual solar irradiance have been developed for simulation tests. The irradiance and temperature changes circumstances are performed using the resonant converter, which consist of PV system, whose control is implemented using Fuzzy logic control unit and MATLAB/ Simulink. This PV module can achieve maximum power using Perturb & Obserb algorithm. Under various abnormal conditions like change in irradiance and temperature, step change in irradiance etc. The control system is executed on a fuzzy logic control unit. Speculative outcomes are exhibited utilizing a 200W model of SECS to demonstrate the better aftereffects of the propelled framework and their control under steadystate and dynamic conditions.

Research paper thumbnail of Application Constant Temperature Charging Technique for Charging Time Reduction of Lithium Ion Battery

Existing battery charging techniques such as Constant Current-Constant Voltage (CC-CV) method, Mu... more Existing battery charging techniques such as Constant Current-Constant Voltage (CC-CV) method, Multistage Constant Current (MCC) method, Pulse Charging, S inusoidal Ripple Approach (SRA), etc., are time consuming open loop approach which uses the fixed cell parameters and does not consider temperature variation while charging. The proposed Constant Temperature – Constant Voltage (CT-CV) charging technique suggests the closed loop scheme using instantaneous cell voltage and temperature changes with the charging current magnitude and maintaining the temperature rise at the set value as CCCV. Charging current is controlled using PID controller added by feed forward current. This method is inexpensive as compared to the other optimization techniques which involve high quality and high cost sensors. Results shows that the proposed technique reduces the battery charging time by 24% when compared with CC-CV technique. As per the results Requirement of fast charging can be achieved through ...

Research paper thumbnail of Isolated DC/DC Converters based on Quasi-Z-Source for Distributed Power Generation

This paper presents a novel step-up dc/dc converter structure projected towards distributed power... more This paper presents a novel step-up dc/dc converter structure projected towards distributed power generation systems. The suggested topologies includes voltage fed quasi Z-source inverter having continuous input current on the primary side, a singlephase isolation transformer, and a Voltage Doubler Rectifier (VDR). To improve the power density of the converter, a three-phase auxiliary ac link (a three-phase inverter and a three-phase isolation transformer) and a three-phase VDR are required to be employed. This paper elaborates the principle of operation for the proposed topologies and analyzes the theoretical results.

Research paper thumbnail of Harmonics analysis of Sinusoidal PWM and Third harmonic injection PWM controlled Voltage source inverter

The sinusoidal Pulse Width Modulation (SPWM) technique is one of the most popular PWM technique f... more The sinusoidal Pulse Width Modulation (SPWM) technique is one of the most popular PWM technique for controlling output and harmonic reduction of inverter. Recent developments in power electronics and semiconductor technology have lead use of higher carrier frequency in PWM modulation techniques. In the presented work voltage source inverter is connected to the RL load with LC filter. Two PWM techniques have been used to operate voltage source inverter are sinusoidal(SPWM) PWM and third harmonic injection(THIPWM) PWM. The simulation result shows THIPWM has better performance when compared to SPWM Both techniques are shown with MATLAB simulink and compared in terms of THD.

Research paper thumbnail of The Comparative Study of Voltage Source Inverter using Sinusoidal PWM and Third Harmonic Injection PWM Techniques for Mitigation of Harmonics

The sinusoidal Pulse Width Modulation (SPWM) technique is one of the most popular PWM technique f... more The sinusoidal Pulse Width Modulation (SPWM) technique is one of the most popular PWM technique for controlling output and harmonic reduction of inverter. Advancement in power electronics and semiconductor technology have led to use of higher carrier frequency in PWM modulation techniques. In the presented work voltage source inverter is connected to the RL load with LC filter of three phase inverter. Two PWM techniques have been used to operate voltage source inverter are sinusoidal(SPWM) PWM and third harmonic injection(THIPWM) PWM. Both techniques are studied and compared in terms of harmonics distortion.

Research paper thumbnail of Optimization of Closed Loop Controlled Charging Time of Li-Ion Battery Using ANFIS

Smart Structures in Energy Infrastructure, 2021

Research paper thumbnail of An Analytical Approach for Voltage Gain in a QZS Based DC-DC Boost Converter

In this paper, a high step up Quasi –Z Source DC-DC converter is presented using hybrid switched ... more In this paper, a high step up Quasi –Z Source DC-DC converter is presented using hybrid switched capacitors switched inductor method to achieve high voltage gain. The proposed converter have solved the duty cycle limitation and voltage gain limitation while maintaining its main advantages such as low voltage stress on capacitors, diodes and switches. The proposed converter has a feature of flexible structure. The operating principle, related relationships and waveforms of the proposed converter are presented in this paper. Also, a comparison between the proposed converter and switched inductor QZS dc-dc converter is provided to confirm the superiority of the proposed converter. S imulations are done in MATLAB Simulink environment to attain high voltage gain.

Research paper thumbnail of Fuzzy and P&O MPPT Techniques for Stabilized the Efficiency of Solar PV System

2018 International Conference on Computing, Power and Communication Technologies (GUCON), 2018

In this paper, electrical power is generated from solar energy using Solar PV cell. The system is... more In this paper, electrical power is generated from solar energy using Solar PV cell. The system is designed with 1- KW PV module and connected with DC/DC converters with DC load. Various control techniques are adopted to make the output suitable for Distributed generation (DGs). The Fuzzy Logic Controller (FLC) and Perturb & Observe (P&O) based control techniques are utilized with various DC/DC converter Buck, Boost and Buck-Boost converters to observe various output response like power and voltage and comparisons between the controlling techniques using FLC and P&O for Solar PV system which provides a convenient choice of right technique for DC micro grid system and find out the efficiency of the converter with various converters.

Research paper thumbnail of Comparative Analysis of Droop Control and PWM with VSI for Islanded Microgrid

Present energy demands are supplied by fossil fuel. It has negative impact on environment, theref... more Present energy demands are supplied by fossil fuel. It has negative impact on environment, therefore the renewable sources are the best solution for energy supplies. PV array and VS I can employed in distributed manner to collect energy from solar irradiation. It can design at small scale according to site requirement. Collection of distributed generators build microgrid. Microgrid is able to supply power to local area, and it can supply power to the main grid or receive power from the main grid. Main issue with microgrid is power regulation. Communication based system is able to regulate microgrid power, but it is suffered from single point failure. VS I can control through PWM technique, but its performance is not compatible with system. Droop Control can control system parameter and improve system performance, and it control each VS I individually. In faulty condition controller cut off only faulty unit from system. Model is design and simulated in MATLAB/S imulink 2017a and results are discussed.

Research paper thumbnail of Study of Different ANFIS Approaches for Battery Charging in Closed Loop Control System

Majority ofRenewable Energy System (RES) operates on isolated mode and the battery storage device... more Majority ofRenewable Energy System (RES) operates on isolated mode and the battery storage device is one of its major part to store the energy for off-peak hour supplies. Many battery charging methods are incorporated for optimal use of battery and temperature is one of key factor for enhancing the life cycle of the battery. An existing closed loop PID controller system addressing controlled temperature charging of Li-Ion battery is considered for analysis. Development of Artificial Intelligence (AI) techniques, the charging time can be considerably reduced within permissible limit of battery temperature rise. Fuzzy logic control (FLC) is one of the most efficient technique, which incorporates human knowledge to address complex nonlinear problems. In the present paper, four different membership functions of premise-consequence parametersin Adaptive Network based Fuzzy Inference System (ANFIS) training are analyzed to reduce the time of charging. The simulation results compare existing PID control with four different parameter approach for two different initial State of Charge (SoC) of 4.2 V Li-Ion battery.

Research paper thumbnail of Performance Analysis of P and FLC Method of MPPT for PV Module Based on Five-Parameter Model

Algorithms for Intelligent Systems, 2021

Research paper thumbnail of Comprehensive Review on maximum power point tracking methods for SPV system

Power generation from solar source is increasing exponentially due to requirement of green energy... more Power generation from solar source is increasing exponentially due to requirement of green energy is increased. In view of the threat of scarcity of conventional resources like coal, gas and fossil fuels etc. In last few years many researchers worked on solar system to develop system that can extract as much as power from solar irradiations. MPPT is a technique that includes further methods of tracking power. In the research carried out it is observed more than 30 methods under different categories track maximum power from PV system.

Research paper thumbnail of An Analysis of DC-DC Converter with Solar PV System by Implantation Perturb & Observe MPPT Technique

Power generation from solar source is increasing exponentially as requirement of power and load i... more Power generation from solar source is increasing exponentially as requirement of power and load increasing. Due to thread of collapsing conventional sources, power generation from renewable sources is needed to adopt to fulfill future requirements. There are some problems faced in their generation are their variable inputs from solar radiations in case of solar energy source. This variation in radiations causes variation in output power and this is not healthy for output power requirements. It causes distortions in system parameters. From last few years, researchers are working on converter control techniques. These are used to control duty cycle of converter thyristor. In this purposed work perturb and observe (P&O) technique are implemented with Buck, Boost and Buck-Boost converters to observe the various output response. Comparison is carried out for the analysis of these controllers and a system that is not controlled for outcome with the specific requirement of particular conve...

Research paper thumbnail of Comparative Study of Maximum Power Point Techniques

This paper aimed to study the behavior of different maximum power point tracking (MPPT) technique... more This paper aimed to study the behavior of different maximum power point tracking (MPPT) techniques applied to PV systems. In this work, techniques such as incremental conductance (INC), perturb-and-observe (P&O), and fuzzy logic controller (FLC) are assessed. The response of the different MPPT techniques is evaluated in rapidly changing weather conditions. The results indicate that, INC performed best among compared MPPT techniques followed by P&O, FLC and HC MPPT techniques in both dynamic response and steady-state in most of the normal operating range.

Research paper thumbnail of The Comparative Study of Combined Incremental Conductance-Fuzzy Logic Algorithm with Conventional Incremental Conductance Algorithm MPPT Technique for SPV System

This paper illustrated a hybrid MPPT composed of two methods: incremental conductance (INC) and F... more This paper illustrated a hybrid MPPT composed of two methods: incremental conductance (INC) and Fuzzy Logic (FL) control. This method is able to track maximum power point (MPP) under variable solar irradiance. In addition to that, it generates a modulation signal to adjust the duty cycle of boost converter to ensure fast MPPT process. In order to validate both of the effectiveness and the usefulness of the proposed system, simulation analysis and comparative studies including other known methods are conducted. The results show that the proposed method can track MPP under different solar irradiance and can reduce fluctuation around MPP area.

Research paper thumbnail of Performance Analysis of Standalone Solar Generation System with Fuzzy and ZVS Converter

Volume IV Issue II, February 2019, 2019

This present work focuses on the development of resonant converter (DC-DC converter) for solar en... more This present work focuses on the development of resonant converter (DC-DC converter) for solar energy conversion system (SECS). It accentuations on plan and exhibiting periods of the distinctive constituents of the SECS like the rudimentary model of zero voltage switching (ZVS) converter, inverter, fuzzy logic controller, best maximum power point tracking system utilizing MATLAB/Simulink. Here, a resonant converter represents the static and dynamic characteristics of an actual solar irradiance have been developed for simulation tests. The irradiance and temperature changes circumstances are performed using the resonant converter, which consist of PV system, whose control is implemented using Fuzzy logic control unit and MATLAB/ Simulink. This PV module can achieve maximum power using Perturb & Obserb algorithm. Under various abnormal conditions like change in irradiance and temperature, step change in irradiance etc. The control system is executed on a fuzzy logic control unit. Speculative outcomes are exhibited utilizing a 200W model of SECS to demonstrate the better aftereffects of the propelled framework and their control under steadystate and dynamic conditions.

Research paper thumbnail of Application Constant Temperature Charging Technique for Charging Time Reduction of Lithium Ion Battery

Existing battery charging techniques such as Constant Current-Constant Voltage (CC-CV) method, Mu... more Existing battery charging techniques such as Constant Current-Constant Voltage (CC-CV) method, Multistage Constant Current (MCC) method, Pulse Charging, S inusoidal Ripple Approach (SRA), etc., are time consuming open loop approach which uses the fixed cell parameters and does not consider temperature variation while charging. The proposed Constant Temperature – Constant Voltage (CT-CV) charging technique suggests the closed loop scheme using instantaneous cell voltage and temperature changes with the charging current magnitude and maintaining the temperature rise at the set value as CCCV. Charging current is controlled using PID controller added by feed forward current. This method is inexpensive as compared to the other optimization techniques which involve high quality and high cost sensors. Results shows that the proposed technique reduces the battery charging time by 24% when compared with CC-CV technique. As per the results Requirement of fast charging can be achieved through ...

Research paper thumbnail of Isolated DC/DC Converters based on Quasi-Z-Source for Distributed Power Generation

This paper presents a novel step-up dc/dc converter structure projected towards distributed power... more This paper presents a novel step-up dc/dc converter structure projected towards distributed power generation systems. The suggested topologies includes voltage fed quasi Z-source inverter having continuous input current on the primary side, a singlephase isolation transformer, and a Voltage Doubler Rectifier (VDR). To improve the power density of the converter, a three-phase auxiliary ac link (a three-phase inverter and a three-phase isolation transformer) and a three-phase VDR are required to be employed. This paper elaborates the principle of operation for the proposed topologies and analyzes the theoretical results.

Research paper thumbnail of Harmonics analysis of Sinusoidal PWM and Third harmonic injection PWM controlled Voltage source inverter

The sinusoidal Pulse Width Modulation (SPWM) technique is one of the most popular PWM technique f... more The sinusoidal Pulse Width Modulation (SPWM) technique is one of the most popular PWM technique for controlling output and harmonic reduction of inverter. Recent developments in power electronics and semiconductor technology have lead use of higher carrier frequency in PWM modulation techniques. In the presented work voltage source inverter is connected to the RL load with LC filter. Two PWM techniques have been used to operate voltage source inverter are sinusoidal(SPWM) PWM and third harmonic injection(THIPWM) PWM. The simulation result shows THIPWM has better performance when compared to SPWM Both techniques are shown with MATLAB simulink and compared in terms of THD.

Research paper thumbnail of The Comparative Study of Voltage Source Inverter using Sinusoidal PWM and Third Harmonic Injection PWM Techniques for Mitigation of Harmonics

The sinusoidal Pulse Width Modulation (SPWM) technique is one of the most popular PWM technique f... more The sinusoidal Pulse Width Modulation (SPWM) technique is one of the most popular PWM technique for controlling output and harmonic reduction of inverter. Advancement in power electronics and semiconductor technology have led to use of higher carrier frequency in PWM modulation techniques. In the presented work voltage source inverter is connected to the RL load with LC filter of three phase inverter. Two PWM techniques have been used to operate voltage source inverter are sinusoidal(SPWM) PWM and third harmonic injection(THIPWM) PWM. Both techniques are studied and compared in terms of harmonics distortion.

Research paper thumbnail of Optimization of Closed Loop Controlled Charging Time of Li-Ion Battery Using ANFIS

Smart Structures in Energy Infrastructure, 2021

Research paper thumbnail of An Analytical Approach for Voltage Gain in a QZS Based DC-DC Boost Converter

In this paper, a high step up Quasi –Z Source DC-DC converter is presented using hybrid switched ... more In this paper, a high step up Quasi –Z Source DC-DC converter is presented using hybrid switched capacitors switched inductor method to achieve high voltage gain. The proposed converter have solved the duty cycle limitation and voltage gain limitation while maintaining its main advantages such as low voltage stress on capacitors, diodes and switches. The proposed converter has a feature of flexible structure. The operating principle, related relationships and waveforms of the proposed converter are presented in this paper. Also, a comparison between the proposed converter and switched inductor QZS dc-dc converter is provided to confirm the superiority of the proposed converter. S imulations are done in MATLAB Simulink environment to attain high voltage gain.

Research paper thumbnail of Fuzzy and P&O MPPT Techniques for Stabilized the Efficiency of Solar PV System

2018 International Conference on Computing, Power and Communication Technologies (GUCON), 2018

In this paper, electrical power is generated from solar energy using Solar PV cell. The system is... more In this paper, electrical power is generated from solar energy using Solar PV cell. The system is designed with 1- KW PV module and connected with DC/DC converters with DC load. Various control techniques are adopted to make the output suitable for Distributed generation (DGs). The Fuzzy Logic Controller (FLC) and Perturb & Observe (P&O) based control techniques are utilized with various DC/DC converter Buck, Boost and Buck-Boost converters to observe various output response like power and voltage and comparisons between the controlling techniques using FLC and P&O for Solar PV system which provides a convenient choice of right technique for DC micro grid system and find out the efficiency of the converter with various converters.

Research paper thumbnail of Comparative Analysis of Droop Control and PWM with VSI for Islanded Microgrid

Present energy demands are supplied by fossil fuel. It has negative impact on environment, theref... more Present energy demands are supplied by fossil fuel. It has negative impact on environment, therefore the renewable sources are the best solution for energy supplies. PV array and VS I can employed in distributed manner to collect energy from solar irradiation. It can design at small scale according to site requirement. Collection of distributed generators build microgrid. Microgrid is able to supply power to local area, and it can supply power to the main grid or receive power from the main grid. Main issue with microgrid is power regulation. Communication based system is able to regulate microgrid power, but it is suffered from single point failure. VS I can control through PWM technique, but its performance is not compatible with system. Droop Control can control system parameter and improve system performance, and it control each VS I individually. In faulty condition controller cut off only faulty unit from system. Model is design and simulated in MATLAB/S imulink 2017a and results are discussed.