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

The Journal of Engineering

Xu Lie¹  Qu Jianglei²  Hui Yannia⁴  Wang Lina⁵ 

[1] Technology Research Institute of COMAC , Beijing , People'Beijing Aeronautical Science &The School of Automation Science and Electrical Engineering, Beihang University , Beijing , People'The School of Electrical Engineering, Tsinghua University , Beijing , People's Republic of China

关键词: improved power quality;    space vector modulation;    CMV suppression method;    common mode voltage suppression;    SVM;    high-power conversion;    unit power factor operation;    intermediate storage link;    universal power transformation topology;    high-voltage output;    three-level MC;    traditional MC;    three-level matrix converter;    bidirectional power conversion etc;   

DOI  :  10.1049/joe.2018.0063

学科分类：工程和技术（综合）

来源: IET

【 摘 要 】

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.

【 授权许可】

CC BY