DESIGN OF SLIDING CONTROLLER FOR GRID INVERTER SYSTEM COMBINED WITH PASSIVE LCL FILTER

Abstract

This article presents the results of synthesizing a sliding controller for the current loop of a grid-connected inverter system, combined with the use of a passive LCL filter inserted into the capacitor branch to filter out resonance peaks and simplify controller using the step-down method. The proposed method has helped reduce the influence of nonlinear loads and harmonic phenomena on the stability of the power grid. The results of the article are evaluated through simulation on Matlab-Simulink software, showing that the controller has achieved the quality requirements.