This paper presents the theories of Bi-directional switch, safe commutation, control strategy ,filter and protection circuit.The future development of MC is also analyzed.

• 本文介绍了矩阵双向开关、安全换流、控制策略和滤波保护电路等相关理论研究的现状,并进一步分析了矩阵变换器的发展前景。