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Fast Fault Detection and Active Isolation of Bidirectional Z-Source Circuit Breaker with Mechanical Switch

Author

Listed:
  • Hyeon-Seung Lee

    (School of Social Safety System Engineering, Hankyoung National University, 327 Chungang-ro, Anseong-si 17579, Gyeonggi-do, Republic of Korea)

  • Young-Maan Cho

    (Reliability Assessment Center, Hyundai Electric & Energy System Co., Ltd., 17-10 Mabuk-ro, 240 bean-gil, Giheung-gu, Yongin-si 16891, Gyeonggi-do, Republic of Korea)

  • Kun-A Lee

    (School of Social Safety System Engineering, Research Center for Safety and Health, Hankyoung National University, 327 Chungang-ro, Anseong-si 17579, Gyeonggi-do, Republic of Korea)

  • Jae-Ho Rhee

    (Department of Electrical Engineering, Bucheon University, 25 Sinheung-ro, 56beon-gil, Bucheon-si 14632, Gyeonggi-do, Republic of Korea)

Abstract

In this paper, a new design is provided so that the Z-source circuit breaker with a mechanical switch operates quickly at a low-impedance fault. When the fault occurs, the Z-source circuit breaker uses an impedance network to generate forced current zero crossing on the switch. This current zero-crossing time is not sufficient when mechanical switches are applied. In addition, since the MS switch operates through the fault detection sensor, the speed is slowed down. At a slower speed, the circuit breaker may not allow fault current isolation. To solve this problem, the Thomson coil was added to the circuit. It operates immediately in a low-impedance fault without additional fault detection devices. As a result, the faster operating speed is expected to reduce the size of the Z-source circuit breaker component and the stress of the breaker. It is mathematically analyzed and derived, and verified through simulations and experiments. The main features of the proposed model are fast detection and operation, normal-state circuit disconnect, fault current limitation, and low conduction loss.

Suggested Citation

  • Hyeon-Seung Lee & Young-Maan Cho & Kun-A Lee & Jae-Ho Rhee, 2022. "Fast Fault Detection and Active Isolation of Bidirectional Z-Source Circuit Breaker with Mechanical Switch," Energies, MDPI, vol. 15(23), pages 1-14, November.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:23:p:8899-:d:983346
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    References listed on IDEAS

    as
    1. Lei Hou & Dezhi Chen & Tongfei Li & Ming Zhao & Huaibo Ren, 2022. "Design and Research on DC Electric Leakage Protection Circuit Breaker," Energies, MDPI, vol. 15(15), pages 1-16, August.
    2. Pascal Hategekimana & Adria Junyent Ferre & Joan Marc Rodriguez Bernuz & Etienne Ntagwirumugara, 2022. "Fault Detecting and Isolating Schemes in a Low-Voltage DC Microgrid Network from a Remote Village," Energies, MDPI, vol. 15(12), pages 1-16, June.
    3. Saqib Khalid & Ali Raza & Umar Alqasemi & Nebras Sobahi & Muhammad Zain Yousaf & Ghulam Abbas & Mohsin Jamil, 2021. "Technical Assessment of Hybrid HVDC Circuit Breaker Components under M-HVDC Faults," Energies, MDPI, vol. 14(23), pages 1-16, December.
    4. Van-Vinh Nguyen & Ho-Ik Son & Thai-Thanh Nguyen & Hak-Man Kim & Chan-Ki Kim, 2017. "A Novel Topology of Hybrid HVDC Circuit Breaker for VSC-HVDC Application," Energies, MDPI, vol. 10(10), pages 1-15, October.
    Full references (including those not matched with items on IDEAS)

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