Analysis of Three-Phase Shunt Active Filter under Wide Range of Load Conditions

In this work, three phase shunt active power filter (SAPF) under wide range of loading conditions by using different Pulse width Modulation techniques has been done. Power Quality (PQ) is an essential concern in the current scenario due to the regular use of power electronic converters and non-linear loads. PQ issues have a significant negative financial influence on consumers and utilities. The main aim of the work is minimization of Total Harmonics Distortion (THD) in medium and higher power applications with respect to the wide range of loading conditions. Performance analysis of a three-phase shunt active filter under a wide range of load conditions has been considered in this paper. For the designed controller analysis, the loads R, RL, RC, and RLE are taken into account along with various pulse width modulation (PWM) control approaches and the proportional-integral (PI) controller. Additionally, a comparison is made between traditional PWM with PI, space vector pulse width modulation (SVPWM), and selective harmonic elimination (SHE) PWM-PI control. System performance has been judged using Total Harmonic Distortion. The simulation results clearly show that the THD generated by the offered PWM schemes and PI controllers meets with the recommended standard set by IEEE 519. MATLAB/Simulink has been used to simulate and test the system. Finally, the performance of the proposed system is compared to the other research findings to claim the effectiveness of the system.