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http://dx.doi.org/10.6113/JPE.2019.19.5.1133

Capacitors Energy Strategy Based Cascaded H-Bridge Converter for DC Port Failures  

Peng, Xu (Aviation Engineering Institute, Civil Aviation Flight University of China)
Liu, Xiaohan (Aviation Engineering Institute, Civil Aviation Flight University of China)
Yang, Guolong (Aviation Engineering Institute, Civil Aviation Flight University of China)
Liu, Xijun (Aviation Engineering Institute, Civil Aviation Flight University of China)
Gao, Lixia (Aviation Engineering Institute, Civil Aviation Flight University of China)
Zhu, Xinyu (Aviation Engineering Institute, Civil Aviation Flight University of China)
Publication Information
Journal of Power Electronics / v.19, no.5, 2019 , pp. 1133-1141 More about this Journal
Abstract
In this paper, a capacitors energy strategy based Cascaded H-bridge Converter (CHBC) for steady DC link voltage is proposed, which allow the CHBC to work while DC power fails. The topology of the CHBC is analyzed to construct the proposed strategy. The capacitors energy strategy is deduced based on the principle that the DC link voltage should be steady, the switch state should be smooth and the switch frequency should be normal. Experiments based on a three-module prototype, including static experiment, start experiment and step change experiment, proves the correctness of the strategy. They also verified the excellent fault tolerance ability and good dynamic performance of the proposed strategy.
Keywords
CHBC; Capacitors energy strategy; Steady DC link voltage;
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Times Cited By KSCI : 2  (Citation Analysis)
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