A Direct-type Single-phase to Three-phase Matrix Converter with PDM based on SVM

Abstract

This paper presents a direct-type single-phase to three-phase matrix converter with a pulse density modulation (PDM) control method for high-frequency applications. The input frequency of the proposed converter is several hundred kilohertz, and the output frequency is a commercial frequency. The proposed converter reduces the switching loss by zero voltage switching from the PDM control. In this study, the PDM based on space vector modulation (SVM) is applied to a direct-type matrix converter. From the experimental results, the total harmonic distortion in the output voltage is 2.09%, and the maximum efficiency is 95.0%.