Modulated Predictive Controller for a Single-Phase to Three-Phase Converters with Two Parallel Single-Phase Rectifiers

Abstract

This paper proposes a single-phase to three-phase drive system consisting of two parallel single-phase rectifiers, one three-phase inverter and an induction motor. It uses two parallel rectifiers without low frequency transformers, thus the reduction of circulating current is an important objective in the control system. In this paper the Modulated Model Predictive Control is used to regulate the grid current and minimize the circulating current between the parallel rectifiers. Simulation and experimental results validate the predictive control performance applied to the system with parallel single-phase rectifiers.