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A study on applications of current limiting reactor in marine electrical power systems

해양전력계통에서 한류 리액터 적용에 관한 연구

  • Received : 2013.12.24
  • Accepted : 2013.01.07
  • Published : 2014.01.31

Abstract

In the field of shipbuilding and marine, electrical power system is that each of the distributed bus bars is connected electrically. In this way, it would be appropriate to recognize as grid-connecting rather than the redundant bus. Short-circuit capacity of the electric power system will be increased proportionally which is due to the addition of the bus. The increase of short-circuit capacity needs high initial cost associated with equipment and can generate the blackout when the equipment with a physically connected to the bus occurs the electric failure. In order to solve these problems, marine electrical power system in which current limiting reactor has been applied is classified according to the network topology, bus network, star network and ring network. And short circuit analysis for each network is performed by the fault types. The results are presented pros and cons compared to each other.

조선해양 및 플랜트 분야에서의 전력계통 구성은 분산 배치된 각각의 발전모선을 전기적으로 연결하여 사용한다. 이러한 방식은 다중화 된 모선이라기보다는 육상에서의 계통 연계와 동일한 개념으로 인식하는 것이 적합할 것이다. 이는 발전모선의 추가로 인하여 모선의 단락용량 또한 비례적으로 증대되기 때문이다. 단락용량의 증가는 관련 제반 비용의 상승을 초래하고 전기적 고장 발생 시에 물리적으로 연결된 모선들이 일시에 대정전(Blackout)을 발생시킬 가능성도 높아진다. 이러한 문제점을 해결하기 위하여 본 논문에서는 한류 리액터가 적용된 조선해양 전력계통에서 발전모선을 위상구조(Bus Topology)에 따라 분류하고 고장 종류 별로 단락전류 해석을 수행하였으며 그 결과를 상호 비교하여 장단점을 제시하였다.

Keywords

References

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