• CSCD核心库收录期刊
  • 中文核心期刊
  • 中国科技核心期刊

ELECTRIC POWER CONSTRUCTION ›› 2022, Vol. 43 ›› Issue (10): 37-47.doi: 10.12204/j.issn.1000-7229.2022.10.004

• Core Equipment of DC Power Grid•Hosted by Associate Professor SONG Qiang, Associate Professor YU Zhanqing and Associate Professor ZHAO Biao• • Previous Articles     Next Articles

Current-Limiting Hybrid High Voltage DC Circuit Breaker with Reclosing Function

ZHANG Baoge(), JIAO Yuemin(), PING Shanyan(), WU Boxiang()   

  1. School of Automation and Electrical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
  • Received:2022-02-23 Online:2022-10-01 Published:2022-09-29
  • Contact: ZHANG Baoge E-mail:bgzhang@mail.0lzjtu.cn;2419123252@qq.com;1256884893@qq.com;1074216755@qq.com
  • Supported by:
    National Key R&D Program of China(2018YFB1201602-06)


DC circuit breaker is the core equipment for the stable operation of the DC transmission system. In order to design a DC circuit breaker which can solve DC fault detection and isolation and has reclosing function, a kind of current-limiting hybrid high voltage DC circuit breaker with reclosing function (RFL-HDCCB) is proposed. RFL-HDCCB topology utilizes the symmetry of current-limiting branch, which not only realizes the bi-directional fault-current breaking function, but also can complete the reclosing function. Whether it is a transient failure or a permanent failure, the recloser function can be realized to restore the normal power supply of the system. By studying and analyzing the working principle of RFL-HDCCB in stages, the parameters of RFL-HDCCB are designed, and finally, the PSCAD software is used to build the system simulation model for verification. The simulation shows that, compared with the traditional circuit breaker, the proposed HVDC circuit breaker with RFL-HDCCB topology can not only effectively reduce the rise rate of fault current and reduce the energy consumption requirements of lightning arrester, but also reduce the breaking pressure of mechanical switch, and has obvious current-limiting capacity, which reflects the rationality of the proposed scheme.

Key words: DC circuit breaker, reclosing, current limiting capacity, energy consumption of arrester, fault clearance

CLC Number: