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Parallel-connected bidirectional current-fed dual active bridge DC-DC converters with decentralized control

  • Deshang Sha
  • , Wenqi Yuan
  • , Guo Xu
  • , Fulin You
  • , Jianliang Chen
  • Beijing Institute of Technology

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

A decentralized control strategy with improved droop control is proposed for parallel-connected current-fed bidirectional DC-DC converters to achieve the flexible power architecture and modular design. The step-up or step-down function depends on the power flow direction. An improved droop control strategy is implemented by sensing the high-voltage side (HVS) voltage and low-voltage side (LVS) current. The operation principle and power sharing characteristics are analyzed. The system stability is demonstrated in detail based on small-signal model. Excellent power sharing can be achieved not only under steady state but also in dynamics. Besides, the system has the hot-swapping feature. A 2.5kW prototype composed of two modules is established to verify the effectiveness of the proposed control strategy.

源语言英语
主期刊名ECCE 2016 - IEEE Energy Conversion Congress and Exposition, Proceedings
出版商Institute of Electrical and Electronics Engineers Inc.
ISBN(电子版)9781509007370
DOI
出版状态已出版 - 2016
活动2016 IEEE Energy Conversion Congress and Exposition, ECCE 2016 - Milwaukee, 美国
期限: 18 9月 201622 9月 2016

出版系列

姓名ECCE 2016 - IEEE Energy Conversion Congress and Exposition, Proceedings

会议

会议2016 IEEE Energy Conversion Congress and Exposition, ECCE 2016
国家/地区美国
Milwaukee
时期18/09/1622/09/16

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