A New Multiobjective Modulated Model Predictive Control Method With Adaptive Objective Prioritization

Abstract

This work proposes a new multiobjective modulated model predictive control (MPC) method for control of power electronic converters. The proposed method retains the advantages of conventional MPC methods in programming the nonlinear effects of the converter into the design calculations to improve the overall dynamic performance of the system and builds upon that by offering a new modulation technique for MPC to minimize the voltage and current ripples through by using a fixed switching frequency. To demonstrate the effectiveness of the proposed method, it has been used to overcome the stability problems caused by a constant power load in a multi converter system as a case study. Experimental results from a prototype cascaded converter system are provided to validate the theoretical outcomes.