An improved 4-step commutation method application for matrix converter

A novel four-step commutation method is proposed for matrix converter cell, 3 phase inputs to 1 phase output in this paper, which is obtained on the analysis of published commutation methods for matrix converter. The first and fourth step can be shorter than the second or third one. The discussed method here is implemented by programming in VHDL language. Finally, the novel method in this paper is verified by experiments.