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A Study on Space Vector Modulation Method to Improve Input Power Factor of Matrix Converter  

Nguyen, Hoang M. (울산대 대학원)
Lee, Hong-Hee (울산대 전기전자정보시스템공학부)
Chun, Tae-Won (울산대 전기전자정보시스템공학부)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.13, no.6, 2008 , pp. 476-486 More about this Journal
Abstract
It is very important to design the input filter optimally in matrix converters. But, the input power factor is deteriorated in spite of the optimal filter design due to the existence of inductor and capacitor included in the filter, and it is hard to keep high power factor in the whole operating range which is one of the major advantages of the matrix converters because the power factor is changed according to the output frequency and the load current. In this paper, we introduce the new space vector modulation method which can preserve the input power factor almost unity even though the output load or the output frequency is varied. It is also presented how to implement the proposed method effectively.
Keywords
Matrix converter; Space vector modulation; Input filter; Power factor; Displacement angle;
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