PWM Control for Three-Phase to Single-Phase Matrix Converter Based on the Fundamental Component of the High-Frequency Output Voltage

Abstract

This paper presents a PWM control method for three-phase to single-phase matrix converters based on the fundamental component of the high-frequency output voltage. Power converters used in resonant circuit configurations, such as wireless power transfer systems, are required to output the high-frequency AC voltage with the desired fundamental component. A matrix converter can output the high-frequency AC from the commercial AC in a single power conversion stage. Although the input three-phase AC voltage of a three-phase to single-phase matrix converter takes non-constant values, the authors propose a control method that always outputs the high-frequency AC voltage with the desired fundamental component. Real-time control is enabled by making the complicated theoretical equations simple. Furthermore, the control method is standardized to be independent of the input and output voltage values, current values, and frequencies. The usefulness of the proposed control method is experimentally verified.