Shunt active power filter with MSRF-PI-AHCC technique for harmonics mitigation in a hybrid energy system under load changing condition

Abstract

ABSTRACT In this study, a shunt active power filter (SAPF) is used to measure the harmonics level of a hybrid power system based on solar PV (SPV) and wind system. The SAPF employs a modified synchronous reference frame technology, an adaptive hysteresis current controller method, and a conventional proportional and integral based voltage regulator for the generation of reference current. The recommended SAPF performs extremely well in suppressing harmonics under varied load and source conditions. The results show that the proposed model outperforms earlier approaches in terms of harmonic mitigation and dc-link voltage stability. It was created in MATLAB/Simulink. The SAPF can minimise harmonics of the source current from 26.74% to 1.565% and 20.25% to 1.80% for inductive and capacitive load case respectively under ideal source condition and 30.05% to 3.82% (inductive) and 25.25% to 3.56% (capacitive) under non-ideal source condition. The proposed controller also reduces the ripples from the dc-link capacitor voltage from 22 V to 8 V and 9 V under both the source condition, respectively, based on the numerical comparison of findings.