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THREE-PHASE THREE-LEVEL VOLTAGE SOURCE INVERTER WITH VOLTAGE BALANCER - A SIMULATION STUDY IN MATLAB/SIMULINK
Journal: International Journal of Electrical Engineering and Technology (IJEET) (Vol.9, No. 3)Publication Date: 2018-06-27
Authors : AVINASH PURANDARE N. GOPALAKRISHNAN Y.P. NERKAR HRISHIKESH MEHTA;
Page : 182-191
Keywords : Multilevel inverter; switching function; harmonics; voltage balancer.;
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Abstract
A model of three phase three level voltage source inverter (VSI) with voltage balancer circuit employing hysteresis current control is developed in MATLAB/SIMULINK. With this proposed model, design and analysis of the inverter becomes simplified avoiding convergence problem and considerable reduction in simulation run time is achieved. The voltage and current ratings of power semiconductor switches and load current can also be determined. The simulation study shows that voltage balancer circuit maintains average voltages across two d. c. link capacitors constant and equal. Harmonic analysis of inverter output voltage and load current shows that total harmonic distortion is 9.14% and 1.77% respectively.
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Last modified: 2018-09-20 16:23:33