A Singular Value Decomposition based Space Vector Modulation to Reduce the Output Common-Mode Voltage of Direct Matrix Converters

- Journal title : Journal of Power Electronics
- Volume 16, Issue 3, 2016, pp.936-945
- Publisher : The Korean Institute of Power Electronics
- DOI : 10.6113/JPE.2016.16.3.936

Title & Authors

A Singular Value Decomposition based Space Vector Modulation to Reduce the Output Common-Mode Voltage of Direct Matrix Converters

Guan, Quanxue; Yang, Ping; Guan, Quansheng; Wang, Xiaohong; Wu, Qinghua;

Guan, Quanxue; Yang, Ping; Guan, Quansheng; Wang, Xiaohong; Wu, Qinghua;

Abstract

Large magnitude common-mode voltage (CMV) and its variation dv/dt have an adverse effect on motor drives that leads to early winding failure and bearing deterioration. For matrix converters, the switch states that connect each output line to a different input phase result in the lowest CMV among all of the valid switch states. To reduce the output CMV for matrix converters, this paper presents a new space vector modulation (SVM) strategy by utilizing these switch states. By this mean, the peak value and the root mean square of the CMV are dramatically decreased. In comparison with the conventional SVM methods this strategy has a similar computation overhead. Experiment results are shown to validate the effectiveness of the proposed modulation method.

Keywords

Common-mode voltage;Matrix converters;Singular value decomposition;Space vector modulation;

Language

English

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