基于最大输出电压矢量的超稀疏矩阵变换器空间矢量过调制策略

In this paper, a space-vector overmodulation strategy for an ultrasparse matrix converter (USMC) is proposed. The maximum output voltage vector, which has the same phase as reference voltage, is derived accurately in space-vector modulation. According to the maximum output voltage vector, the overmodulation mode I and mode II are re-divided, the boundary voltage transfer ratio (VTR) of which is ex...