标题：Improved Space Vector Modulation Strategy for AC-DC Matrix Converters
作者：Xiao Liu;Qingfan Zhang;Dianli Hou;Siyao Wang
作者机构：[Liu, X] School of Control Science and Engineering, Shandong University, Jinan, China;[ Zhang, Q] School of Control Science and Engineering, Shandong 更多
通讯作者地址：[Liu, X]Shandong Univ, Sch Control Sci & Engn, Jinan 250100, Peoples R China.
来源：Journal of power electronics: A publications of the Korean Institute of Power Electronics
关键词：Common-mode voltage;Matrix converter;Narrow pulse;Space vector modulation
摘要：In this paper, an approach to reduce the common-mode voltage and to eliminate narrow pulse for implemented AC-DC matrix converters is presented. An improved space vector modulation (SVM) strategy is developed by replacing the zero space vectors with suitable pairs of active ones. Further, while considering the commutation time, the probability of narrow pulse in the conventional and proposed SVM methods are derived and compared. The advantages of the proposed scheme include: a 50% reduction in the peak value of the common-mode voltage; improved input and output performances; a reduction in the switching loss by a reduced number of switching commutations and a simplified implementation via software. Experimental results are presented to demonstrate the correctness of the theoretical analysis, as well as the feasibility of the proposed strategy.