Space vector modulation for a capacitor clamped multi-level matrix converter

As an array of controlled bi-directional semiconductor switches, the matrix converter allows direct AC-AC conversion without an intermediate DC link. The matrix converter has several attractive advantages that have been investigated in the last twenty years. Multilevel topologies have become increasingly popular in recent years due to high power quality, high-voltage capability, low harmonics and low EMI issues. This paper is concerned with applying multi-level topology and space vector control algorithms to direct AC-AC power converters. Results from a small scale experimental prototype are given to validate the theoretical findings.