Strategy of reducing the common mode voltage modulation of a three-level matrix converter

被引：0
|
作者：
Ma X. [1 ]
Ren X. [1 ]
Yan B. [2 ]
Ma Y. [1 ]
Xu D. [1 ]
机构：
[1] School of Electrical Engineering and Automation, Henan Polytechnic University, Jiaozuo
[2] State Grid Jiaozuo Power Supply Company, Jiaozuo
来源：
Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control | 2020年 / 48卷 / 21期
关键词：
Common mode voltage suppression; Modulation coefficient; Space vector modulation; Three-level matrix converter;
D O I：
10.19783/j.cnki.pspc.191451
中图分类号：
学科分类号：
摘要：
Compared with the conventional AC-DC-AC power converter, the matrix converter can easily realize the transformation of N phases to M phases as a general power conversion device. The matrix converter can produce ideal input and output waveforms, no intermediate energy storage links, two-way energy flow, and fast dynamic response, etc. The three-level matrix converter can improve voltage transmission efficiency, realize multi-level voltage waveform output, and break through the voltage transmission ratio of 0.866 for the common mode voltage problem in the modulation process of a three-level matrix converter. In this paper, an improved space vector modulation algorithm based on a capacitive clamped three-level matrix converter is proposed, and different modulation strategies are selected according to different modulation indices. The common mode voltage of the three-level matrix converter can be minimized. The feasibility and correctness of the simplified strategy are verified by experiments and simulation platforms. © 2020, Power System Protection and Control Press. All right reserved.
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页码：49 / 57
页数：8
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