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Development and Application of a 10 kV Mechanical DC Circuit Breaker

Author

Listed:
  • Lu Qu

    (State Key Lab of Power Systems, Department of Electrical Engineering, Tsinghua University, Beijing 100084, China
    DC Research Center, Energy Internet Institute, Tsinghua University, Beijing 100084, China)

  • Zhanqing Yu

    (State Key Lab of Power Systems, Department of Electrical Engineering, Tsinghua University, Beijing 100084, China
    DC Research Center, Energy Internet Institute, Tsinghua University, Beijing 100084, China)

  • Xiang Xiao

    (Electric Power Research Institute, Guangdong Power Grid Co., Ltd., Guangzhou 510080, China)

  • Wei Zhao

    (Electric Power Research Institute, Guangdong Power Grid Co., Ltd., Guangzhou 510080, China)

  • Yulong Huang

    (State Key Lab of Power Systems, Department of Electrical Engineering, Tsinghua University, Beijing 100084, China
    DC Research Center, Energy Internet Institute, Tsinghua University, Beijing 100084, China)

  • Rong Zeng

    (State Key Lab of Power Systems, Department of Electrical Engineering, Tsinghua University, Beijing 100084, China
    DC Research Center, Energy Internet Institute, Tsinghua University, Beijing 100084, China)

Abstract

A DC circuit breaker is piece of core equipment for DC grid construction and can achieve fast isolation of DC faults in the grid. In this paper, based on the fault characteristics and protection requirements of an AC/DC hybrid distribution network, the technical parameters and topology structure of an inductance and capacitance (LC) resonant commutation-type mechanical DC breaker are proposed. Furthermore, an engineering prototype of the mechanical DC circuit breaker is developed, then a small current breaking test and a large current breaking test are carried out. The test results show that a 10 kA fault current can be interrupted within 10 ms by the engineering prototype. Finally, the engineering prototype of the mechanical DC circuit breaker is installed in the AC/DC hybrid distribution network project, and a current breaking test is carried out. The test results show that the mechanical DC circuit breaker has good running conditions, and the function and performance meet the engineering design and operation requirements.

Suggested Citation

  • Lu Qu & Zhanqing Yu & Xiang Xiao & Wei Zhao & Yulong Huang & Rong Zeng, 2019. "Development and Application of a 10 kV Mechanical DC Circuit Breaker," Energies, MDPI, vol. 12(19), pages 1-15, September.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:19:p:3615-:d:269615
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    References listed on IDEAS

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    1. Yan Xu & Jingyan Liu & Weijia Jin & Yuan Fu & Hui Yang, 2018. "Fault Location Method for DC Distribution Systems Based on Parameter Identification," Energies, MDPI, vol. 11(8), pages 1-18, July.
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    Cited by:

    1. Perez-Molina, M.J. & Larruskain, D.M. & Eguia Lopez, P. & Buigues, G. & Valverde, V., 2021. "Review of protection systems for multi-terminal high voltage direct current grids," Renewable and Sustainable Energy Reviews, Elsevier, vol. 144(C).

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