The Transactions of the Korean Institute of Power Electronics (전력전자학회논문지)

The Korean Institute of Power Electronics (전력전자학회)
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Hybrid LVDC Circuit Breakers

저압직류용 하이브리드 차단기

  • Hyo-Sung, Kim (Dept. of EE & Control Eng., Kongju National University)
  • Received : 2022.08.08
  • Accepted : 2022.09.04
  • Published : 2022.12.20
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Abstract

This work investigates the commutation characteristics of the current flowing through an electrical-contact-type switch to the semiconductor switch branch during the breaking operation of hybrid DC switchgear. A simple, reliable, low-cost natural commutation method is proposed, and the current commutation characteristics are analyzed in accordance with the conduction voltage drop of the semiconductor switch branch through experiments. A prototype 400 V/10 A class natural commutation type hybrid DC switchgear is set up. Its performance is verified, and its characteristics are analyzed.

Keywords

Acknowledgement

이 논문은 2016년도 정부(교육과학기술부)의 재원을 한국연구재단의 지원을 받아 수행된 기초연구사업임 (2016R1D1A3B01008279). 이 논문은 2022년도 정부(산업통산자원부)의 재원으로 한국산업기술평가관리원의 지원을 받아 수행된연구임(No. RS-2022-00144404, 친환경선박 핵심기술국제표준화).

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