53 / 2020-09-24 22:57:01
Bridge arm Fault Location Method for High Voltage Capacitor of DC Filter in HVDC Systems based on Current Characteristics
DC filter, high voltage capacitor,bridge arm branch current, unbalance current, fault location.
终稿
Dalin Mu / Southwest Jiaotong University
Sheng Lin / School of Electrical Engineering; Southwest Jiaotong University
Yuqing Lei / Southwest Jiaotong University
Gui Fang / Southwest Jiaotong University
There are two kinds of methods to locate fault for high voltage capacitor of DC filter in HVDC systems, which include 1) directly observing the appearance state of capacitor, 2) manually measuring the value of capacitor unit. However, they fail to achieve satisfactory efficiency and pose a threat to operators’ safety. Thus, this paper proposes a novel fault location method for high voltage capacitor of DC filter based on current characteristics of direction and amplitude. The direction change characteristics of unbalanced current and the amplitude relationships among the bridge arm branches of high voltage capacitor are analyzed. The degree of current amplitude change of bridge arm branch is defined to locate the position of faulty bridge arm. Performance of the proposed location method for high voltage capacitor of DC filter is evaluated based on time-domain simulation studies in the PSCAD/EMTDC software environment and experimental results are based on a real-time digital simulator.

 
重要日期
  • 会议日期

    11月02日

    2020

    11月04日

    2020

  • 10月27日 2020

    初稿截稿日期

  • 11月03日 2020

    报告提交截止日期

  • 11月04日 2020

    注册截止日期

  • 11月17日 2020

    终稿截稿日期

主办单位
IEEE IAS Student Chapter of Huazhong University of Science and Technology (HUST)
承办单位
Huazhong University of Science and Technology
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