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A Resonant Hybrid DC Circuit Breaker for Multi-Terminal HVDC Systems

Author

Listed:
  • Ryo Miyara

    (Faculty of Engineering, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Nakagami, Okinawa 903-0213, Japan)

  • Akito Nakadomari

    (Faculty of Engineering, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Nakagami, Okinawa 903-0213, Japan)

  • Hidehito Matayoshi

    (Osaka Institute of Technology, Osaka 530-8568, Japan)

  • Hiroshi Takahashi

    (Fuji Electric Co., Ltd., Tokyo 141-0032, Japan)

  • Ashraf M. Hemeida

    (Department of Electrical Engineering, Faculty of Energy Engineering, Aswan University, Aswan 51528, Egypt)

  • Tomonobu Senjyu

    (Faculty of Engineering, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Nakagami, Okinawa 903-0213, Japan)

Abstract

High-voltage direct current (DC) transmission systems and multi-terminal direct current transmission systems are attracting attention for expanding the grid to promote introduction of renewable energy. Fault clearing in DC systems is difficult because there is no zero point of current. Hybrid circuit breakers are suitable for fault clearing in DC systems. Conventional hybrid circuit breakers have a hard-switching path that damages the switch. Hard switching damages the device and produces emissions due to harmonic noise. A novel resonant hybrid DC circuit breaker is proposed in this paper. The proposed circuit breaker reduces the damage to the switching device using soft switching due to the current zero point. The proposed circuit breaker is compared with conventional hybrid circuit breakers using numerical simulations. Interruption times and switching types of circuit breakers were compared. The simulation results of the fault clearing characteristics of the proposed breakers show that the proposed breakers have sufficient performance and are capable of stable reconnections in multi-terminal direct current transmission systems.

Suggested Citation

  • Ryo Miyara & Akito Nakadomari & Hidehito Matayoshi & Hiroshi Takahashi & Ashraf M. Hemeida & Tomonobu Senjyu, 2020. "A Resonant Hybrid DC Circuit Breaker for Multi-Terminal HVDC Systems," Sustainability, MDPI, vol. 12(18), pages 1-14, September.
    • Handle: RePEc:gam:jsusta:v:12:y:2020:i:18:p:7771-:d:416414
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    Cited by:

    1. Lijun Xie & Fan Cheng & Jing Wu, 2022. "Control Strategy for Offshore Wind Farms with DC Collection System Based on Series-Connected Diode Rectifier," Sustainability, MDPI, vol. 14(13), pages 1-15, June.

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