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http://dx.doi.org/10.6113/JPE.2013.13.4.647

Improved Space Vector Modulation Strategy for AC-DC Matrix Converters  

Liu, Xiao (School of Control Science and Engineering, Shandong University)
Zhang, Qingfan (School of Control Science and Engineering, Shandong University)
Hou, Dianli (School of Control Science and Engineering, Shandong University)
Wang, Siyao (School of Control Science and Engineering, Shandong University)
Publication Information
Journal of Power Electronics / v.13, no.4, 2013 , pp. 647-655 More about this Journal
Abstract
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.
Keywords
Common-mode voltage; Matrix converter; Narrow pulse; Space vector modulation;
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Times Cited By KSCI : 3  (Citation Analysis)
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