Research on the modulation of a three-level matrix converter with reduced common mode voltage

Qu Jianglei; Xu Lie; Wang Lina; Hui Yannia

Research on the modulation of a three-level matrix converter with reduced common mode voltage

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Author(s): Qu Jianglei¹ ; Xu Lie² ; Wang Lina³ ; Hui Yannia¹
- Affiliations: 1: Beijing Aeronautical Science & Technology Research Institute of COMAC , Beijing , People's Republic of China ;
  2: The School of Electrical Engineering, Tsinghua University , Beijing , People's Republic of China ;
  3: The School of Automation Science and Electrical Engineering, Beihang University , Beijing , People's Republic of China
Source: Volume 2018, Issue 13, 2018, p. 607 – 613
DOI: 10.1049/joe.2018.0063 , Online ISSN 2051-3305

This is an open access article published by the IET under the Creative Commons Attribution-NonCommercial-NoDerivs License (http://creativecommons.org/licenses/by-nc-nd/3.0/)

Received 10/01/2018, Accepted 29/01/2018, Published 09/02/2018

The matrix converter (MC) is a kind of universal power transformation topology. It merits in unit power factor operation; no intermediate storage link, bidirectional power conversion etc. Compared to traditional MC, three-level MC can achieve multilevel high-voltage output, high-power conversion, improved power quality etc. An interesting space vector modulation (SVM) of the MCs has been reported for the common mode voltage (CMV) suppression recently. However, the CMV suppression method on three-level MCs is seldom mentioned due to its complicated SVM. The CMV suppression of a capacitor clamped three-level MC is introduced in this paper. Aiming at reduce the CMV on three-level MC, the contribution of this article is determined an improved SVM with minimised CMV on the proposed three-level MC, this SVM chooses the different modulation strategy based on the different modulation index.

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Research on the modulation of a three-level matrix converter with reduced common mode voltage

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