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With the rapid development of DC power transmission technology, there is an urgent need for fast, high reliability and low-cost fault current blocking equipment. The hybrid DC circuit breaker (HDCCB) is one of the best equipment to solve the problem. A novel full thyristors HDCCB combining vacuum and gas integrated series switch is proposed in this paper, which accelerates the fault current transferred. Moreover, the breaking of higher current levels and lower cost by using the full thyristors to replace the IGBT and other power electronic (PE) devices are realized. The operation of proposed HDCCB is analyzed in detail. With the key parameters optimized in terms of the operation HDCCB, the breaking current capability and the effectiveness are verified by the simulation model.

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A Novel Full Thyristors Hybrid DC Circuit Breaker Topology Combining Vacuum and Gas Integrated Series Switch

  • 会议论文

  • 发表日期：

    2025年

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  • Yadong Yu,
  • Xian Cheng,
  • Guowei Ge,
  • Tengfei Wu

摘要

With the rapid development of DC power transmission technology, there is an urgent need for fast, high reliability and low-cost fault current blocking equipment. The hybrid DC circuit breaker (HDCCB) is one of the best equipment to solve the problem. A novel full thyristors HDCCB combining vacuum and gas integrated series switch is proposed in this paper, which accelerates the fault current transferred. Moreover, the breaking of higher current levels and lower cost by using the full thyristors to replace the IGBT and other power electronic (PE) devices are realized. The operation of proposed HDCCB is analyzed in detail. With the key parameters optimized in terms of the operation HDCCB, the breaking current capability and the effectiveness are verified by the simulation model.