Harmonic current compensation improvement at point of common coupling using hybrid natural green sources

Ideally, distribution utilities are responsible to provide good power at a fixed rated frequency to the consumer end at unity power factor. Due to the bulk usage of non-linear power electronic loads, distribution system network (DSN) suffers large current distortion. Further, the intermittent hybrid natural green sources (HNGS) like PV and PMSG wind grid connected using hysteresis current controller (HCC) through 3-phase VSI effects more distortion of current which contaminates the power quality at the consumer end. Thus power quality is a vital issue which needs to be presented well in this paper. This paper adopts the shunt active filter (SHAF) using real and reactive current (i
d
−i
q
) control strategy to analyze the case studies with presence and absence of HNGS under unbalanced nonlinear load condition for the reduction in current distortion at distribution utility side. The MATLAB/Simulink examined to validate the performance of i
d
−i
q
control strategy.