Soft Precharging Method for Four-Level Hybrid-Clamped Converter
编号:29 访问权限:公开 更新:2021-08-20 19:11:56 浏览:277次 张贴报告

报告开始:2021年08月27日 12:38(Asia/Shanghai)

报告时间:1min

所在会场:[P] Poster [P1] Poster 1

摘要
A four-level hybrid clamped converter(4L-HCC) is one of the next-generation multilevel converters for medium voltage motor drives without transformers. However, dc-link and flying capacitors in 4L-HCCs must be charged to their nominal voltage. Due to the distinctive structure of capacitors in a 4L-HCC, few papers have made an explicit solution on the safe start-up process without inducing large inrush currents. This paper presents an effective soft precharging method using the selected switching states. A straightforward algorithm is developed to control the switching states to build different precharging circuits properly. All capacitors are precharged through internal elements rapidly with suppressed and controllable charging current. The effectiveness of the proposed method is confirmed with the simulation.
关键词
precharge,4L-HCC,start-up process
报告人
Yihui Zhao
Chongqing university

稿件作者
Zhao Yihui Chongqing university
Pan Jianyu Chongqing university
Luo Yao Chongqing university
Li Jian Chongqing university
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重要日期
  • 会议日期

    08月25日

    2021

    08月27日

    2021

  • 04月21日 2021

    摘要截稿日期

  • 05月15日 2021

    摘要录用通知日期

  • 06月25日 2021

    终稿截稿日期

  • 08月24日 2021

    报告提交截止日期

  • 08月27日 2021

    注册截止日期

主办单位
IEEE
IEEE ELECTRONIC DEVICE SOCIETY
承办单位
Huazhong University of Science and Technology
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