Safe commutation studies for single phase matrix converter operating as AC to AC converter: article

This paper describes implementation of safe commutation switching sequence for controlled rectifier operation of Single-Phase Matrix Converter (SPMC). Sinusoidal Pulse Width Modulation (SPWM) technique was used to calculate the switch duty ratio to synthesize the output. In this work a simple commutation strategy for implementation in single phase matrix converter provides the required free-wheeling operation similar to those available in other converter topologies is proposed. The switching sequence is arranged by providing a continuous path for current flow during switch transition to avoid voltage spikes. A computer simulation model was developed to investigate the behaviour using MATLAB/Simulink (MLS).