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복합형 초전도 한류기의 한류특성에 따른 계통 적용성 검토
최원준(Wonjoon Choe),심정욱(Jungwook Sim),박권배(Kwon-Bae Park),김영근(Young-Gun Kim),오일성(Il-Sung Oh),현옥배(Ok-Bae Hyun) 대한전기학회 2008 대한전기학회 학술대회 논문집 Vol.2008 No.10
In order to apply SFCLs into electric power systems, the urgent issues to be settled are as follows, such as initial installation price, operation and maintenance cost due to ac loss of superconductor and the life of cryostat, and high voltage and high current problems. We designed novel hybrid SFCLs which combine superconductor and conventional electric equipments including a vacuum interrupter, an electro-magnetic contactor and a current limiting reactor. The main purpose of the hybrid SFCL is to drastically reduce total usage of superconductor by adopting current commutation method by use of the superconductor and the fast switch. According to protective coordination and performance, we investigated two concepts of Hybrid SFCLs. First is a half cycle fault current limitation type and second is a non-half cycle fault current limitation type. We concluded that the non-half cycle fault current limitation type is batter than the other.