한국전자통신학회논문지 (The Journal of the Korea institute of electronic communication sciences)

한국전자통신학회 (Korea Institute of Electronic Communication Science)
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초전도 결합형 직류 차단 시스템이 적용된 DC 전력망 과도상태 해석 연구

A Study on Transient State Analysis of DC Power Neworks with Superconducting Coupled Type DC circuit breaker System Applied

  • 박형민 (한국폴리텍대학 전북캠퍼스 스마트전기과)
  • Hyoung-Min Park (Dept. Samrt Electrics, Jeonbuk Campus of Korea Polytechnic Colleges)
  • 투고 : 2024.08.23
  • 심사 : 2024.10.12
  • 발행 : 2024.10.31
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초록

초전도 결합형 직류 차단 시스템의 동작 메커니즘과 DC 전력망의 과도상태의 시뮬레이션 해석 결과 DC 차단기만 적용된 경우 사고 전류가 증가하고 차단 동작이 완벽하게 이루어지지 않는 반면, 초전도가 결합된 경우 사고 전류가 제한되고 차단 동작이 신속하게 완료되는 효과를 보였다. 본 논문에서 제안된 초전도 결합형 직류 차단 시스템은 안정적이며 전력계통의 용량 증가에 대응할 수 있는 가능성을 지니고 있다. 또한 차단기의 부담을 줄여 안정성과 수명을 향상 시킬 수 있음을 확인하였다.

The operation mechanism of the superconducting coupled DC circuit breaker system and the simulation analysis of the transient state in DC power networks showed that, when only a conventional DC circuit breaker was applied, the fault current increased and the interruption operation was not fully achieved. In contrast, when coupled with superconductors, the fault current was limited, and the interruption operation was completed quickly. The superconducting coupled DC circuit breaker system proposed in this paper is stable and has the potential to respond to increases in the capacity of power systems. Additionally, it has been confirmed that this system can reduce the burden on circuit breakers, thereby enhancing their lifespan and stability.

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참고문헌

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