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

被引：4
|
作者：
Peng, Xu [1 ]
Liu, Xiaohan [1 ]
Yang, Guolong [1 ]
Liu, Xijun [1 ]
Gao, Lixia [1 ]
Zhu, Xinyu [1 ]
机构：
[1] Civil Aviat Flight Univ China, Aviat Engn Inst, Guanghan, Peoples R China
来源：
JOURNAL OF POWER ELECTRONICS | 2019年 / 19卷 / 05期
关键词：
CHBC; Capacitors energy strategy; Steady DC link voltage; SWITCH FAULT; VOLTAGE; CIRCUIT; MODULATION; DIAGNOSIS;
D O I：
10.6113/JPE.2019.19.5.1133
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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.
引用
收藏
页码：1133 / 1141
页数：9
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