Improved STATCOM Performance using Modulated Finite Control Set Model Predictive Control

STATCOMs are an integral component for the stability of modern power systems; able to supply and sink reactive power on demand, they can assist with local voltage regulation. In this paper, a modulated finite control set model predictive control is developed and demonstrated, demonstrating voltage regulation through VAR control under different scenarios. The proposed modulated FCS-MPC is compared to a typical linear PI controlled STATCOM on a medium voltage distribution system, showing faster control dynamics and reference tracking, as well as decreased THD.