A modulation strategy to eliminate CMV for matrix converters with input power factor compensation

A space vector modulation (SVM) method to eliminate common-mode voltage (CMV) for matrix converters (MCs) can effectively solve many problems in electrical systems. However, the input power factor (IPF) of the MC is significantly degraded under light-load conditions due to the input filter's characteristics. In this paper, a new switching strategy is proposed to compensate the IPF for the zero CMV-SVM method in MCs. The proposed strategy is based on the study of rotating-vector behavior and rearrangement of duty cycles in order to achieve the zero CMV, unity or the maximum achievable value of IPF, as well as a good performance of MCs. Simulation results are provided to validate the correctness of the proposed strategy.