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

The Korean Institute of Power Electronics (전력전자학회)
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Research and Analysis of Difference Hybrid DC Circuit Breaker Topologies for MVDC Distribution System

MVDC 배전시스템에서 다양한 복합형 직류 차단기의 토폴로지 연구 및 분석

  • Go, Yu-Ran (Power Electric & Electronic System R&D Institute, ENTEC Electric & Electronic Co., LTD.) ;
  • Min, Myung-Hwan (Power Electric & Electronic System R&D Institute, ENTEC Electric & Electronic Co., LTD.) ;
  • An, Tae-Pung (Power Electric & Electronic System R&D Institute, ENTEC Electric & Electronic Co., LTD.)
  • Received : 2020.10.13
  • Accepted : 2020.10.22
  • Published : 2020.12.20
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Abstract

The importance of DC breakers as key protection equipment is increasing in accordance with growing concerns on MVDC distribution network systems without DC/AC conversion. Different from the situation in AC systems, no natural zero-crossing point exists in DC systems. Thus, DC breaker technology is more difficult than AC breaker technology. The solutions for DC breakers can be divided into three types: mechanical, power electronics, and hybrid. In this study, the operating principles of several topologies of hybrid circuit breakers and that of the proposed DC breaker are analyzed and simulated by sorting two types. The breakers are compared in terms of the type and number of semiconductors, volume, power loss, auxiliary components, isolation, and other aspects. The advantages and disadvantages of the breakers are also analyzed.

Keywords

Acknowledgement

본 연구는 중소벤처기업부의 규제자유특구혁신사업육성 지원에 의한 연구임. (No. P0012432)

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