MRSC controlled three-phase three-level active power filters under weak grids

With the rapid development of modern industry and power electronics, the nonlinear loads in the power grid have increased significantly. As a result, the problems of harmonic pollution and three-phase current imbalance are becoming more and more prominent. This paper mainly focuses on the Multi Resonance Controlled (MRSC) three-phase three-level Active Power Filters (APF) under weak power grids with Space Vector Pulse Width Modulation (SVPWM) modulation. Through MATLAB/Simulink simulation verification, the method in this paper shows an excellent compensation effect, the harmonic content is significantly reduced and the power quality is improved.