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Single-phase Thirteen-level Dual-boost Inverter Based shunt active Power filter Control Using Resonant and Fuzzy Logic Controllers

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CSEE Journal of Power and Energy Systems 2022年第3期8卷 849-863页

作者： Shaik Gouse Basha Venkatesan Mani Subbarao Mopidevi Vignan's Foundation for Science Technology and Research Andhra Pradesh522213India Vignan's Lara Institute of Technology and Science Vadlamudi522213India

This paper addresses the power quality improvement of a single-phase utility grid using a thirteen-level dualboost inverter(TLDBI)-shunt active filter(SAF).The TLDBI uses a single DC source of low voltage magnitude and five switched capacitor arrangement to achieve self-balanced thirteen level output voltages.Moreover,the charging and voltage balancing of the capacitor is achieved by proper switching sequence control in a series,through which boosted inverter output voltage levels are obtained.Compared with the tradional H-bridge multilevel inverters(MLIs),all the elements in the proposed TLDBI are able to withstand a voltage stress which is equal to the input DC source.This feature ensures the performance of the proposed TLDBI in high-frequency applications.The power at the electrical grid is highly affected by a wide range of non-linear loads.The proposed SAF is used for measuring and controlling the current flow from source to load.The difference between the targeted and actual currents from the utility grid is measured by using the modified synchronous reference frame(SRF)theory.The estimated error current is used by the controllers to predict the optimum suitable switching angle and modulation index(MI)to the TLDBI-SAF.In this paper,the traditional proportional-integral(PI)controller,fuzzy logic controller(FLC)and proportional resonant controller(PRC)are compared and the results are presented to validate the performance of SAF.The stability and robustness of the proposed controller is evaluated using Bode,Root locus,and Nyquist plots.The modeling and analysis of the proposed system are done using MATLAB/Simulink environments.The simulation results are presented in the various MI of TLDBI and also subjected to non-linear load conditions.The results are also compared to the claim novelty of the proposed study.

关键词： FLC power quality PRC thirteen-level DBI shunt active filter single-phase utility grid SRF

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Implementation of PSOANN Optimized PI Control Algorithm for shunt active filter

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Computer Modeling in Engineering & Sciences 2020年第3期122卷 863-888页

作者： M.Sujith S.Padma Department of EEE IFET College of EngineeringVillupuramTamilnadu605108India. Department of EEE Sona College of EngineeringSalem636005India.

This paper proposes the optimum controller for shunt active filter(SAF)to mitigate the harmonics and maintain the power quality in the distribution system.It consists of shunt active filter,Voltage Source Inverter(VSI),series inductor and DC bus and nonlinear load.The proposed hybrid approach is a combination of Particle Swarm Optimization(PSO)and Artificial Neural Network(ANN)termed as PSOANN.The PI controller gain parameters of kp and ki are optimized with the help of PSOANN.The PSOANN improves the accuracy of tuning the gain parameters under steady and dynamic load conditions;thereby it reduces the values of THD within the prescribed limits of IEEE 519.The PSO optimizes the dataset of terminal voltage and DC voltage present in shunt active filter for different load condition.The optimized dataset acts as the input for the controller to predict the optimal gain with minimal error and to generate the optimized control signal for the SAF.The proposed methodology is modelled and simulated with the help of MATLAB/Simulink platform and illustrated the few test cases considered for exhibiting the performance of proposed hybrid controller.The experimental results are measured with developed laboratory prototype and compared with the simulation results to validate the effectiveness of the proposed control methodology.

关键词： Artificial neural network particle swarm optimization shunt active filter voltage source inverter total harmonic distortions.

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Improved PLL Tuning of shunt active Power filter for Grid Connected Photo Voltaic Energy System

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Circuits and Systems 2016年第10期7卷 3063-3080页

作者： Rajmohan Rajalakshmi Vairamani Rajasekaran Department of Electrical and Electronics Engineering Coimbatore Institute of Technology Coimbatore India Department of Electrical and Electronics Engineering PSNA College of Engineering and Technology Dindigul India

This research work brings out the unique predictive current control method for attaining an efficient grid connected Photo Voltaic (PV) system by shunt active Power filter (SAPF) as grid connected converter. The major objective of the research work is to address the presence of Direct Current (DC) component, frequency improvement, quicker theta response, voltage magnitude estimation in the input signal of the Phase Locked Loop (PLL) which is challenging. This work focuses on tuning the PLL block (Kp, Ki, Kv and Ko) through Artificial Bee Colony (ABC) optimization algorithm. The proposed ABC based modified three-phase PLL method is based on adding a new loop inside the PLL structure. In power converters, ABC algorithm is used to select the optimal switching states. The voltage vector which minimizes a cost optimization function is selected. Simulation is carried out for both balanced and unbalanced system and the results validate that the performance of the proposed approach is better in terms of harmonic compensation as per the IEEE standards within ±5%, power factor improvement of the system, quicker theta tracking and suppression of frequency jump with the interconnection of PV system.

关键词： shunt active filter Phase Locked Loop Artificial Bee Colony Current Control Method PV System

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Harmonic Reduction in Wind Power Generating System Using shunt active filter with SPWM Technique

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Circuits and Systems 2016年第4期7卷 157-165页

作者： R. Zahira A. Peer Fathima Ranganath Muthu Department of Electrical and Electronics Engineering Tagore Engineering College Chennai India School of Electrical Engineering Vellore Institute of Technology Chennai India Department of Electrical and Electronics Engineering SSN College of Engineering Kalavakkam Chennai India

Due to environmental conditions, the wind power generation is fluctuating in nature. This affects the electrical network interconnected with these systems. When the wind power generators are connected to the nonlinear loads, there is distortion in the waveform. These distortions should be within limits according to national and international guidelines framed for power quality. This paper presents a mitigation technique with a shunt active filter, which reduces harmonic distortion to the permitted limit. Sine pulse width modulation (SPWM) control scheme is used to control shunt active filter. This technique eliminates harmonic distortion and maintains unity power factor. The simulation for proposed method is carried out using MATLAB/SIMULINK and results are validated.

关键词： Wind Power Generation SPWM shunt active filter Harmonic Power Quality

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