Finite Control Set Model Predictive Control of Cascaded H-Bridge Multilevel Inverter with LC Filter

Abstract

A cascaded H-bridge (CHB) multilevel inverter (MLI) is presented in this paper with finite control set model predictive controller (FCS-MPC). MPC predicts the future state of the system using past states and mathematical model of the system. A optimization problem is solved to select the best predicted state and is applied to power circuit for predefined sample time. The presented configuration generates a seven level AC voltage which is passed to unknown load through an LC filter. The aim of this research is to provide a DC-AC converter with good power quality and low harmonic distortions. The proposed topology and controller is theoretically defined, simulated in MATLAB SIMULINK and results are analyzed.