Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2007.07a
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- Pages.102-103
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- 2007
Hybrid Superconducting Fault Current Limiters for Distribution Electric Networks
하이브리드 방식을 적용한 배전급 초전도 한류기 개발
- Lee, B.W. (Electrotechnology R&D Center LS Industrial Systems) ;
- Park, K.B. (Electrotechnology R&D Center LS Industrial Systems) ;
- Sim, J. (Electrotechnology R&D Center LS Industrial Systems) ;
- Oh, I.S. (Electrotechnology R&D Center LS Industrial Systems) ;
- Lim, S.W. (KEPRI) ;
- Kim, H.R. (KEPRI) ;
- Hyun, O.B. (KEPRI)
- 이방욱 (LS산전 전력연구소) ;
- 박권배 (LS산전 전력연구소) ;
- 심정욱 (LS산전 전력연구소) ;
- 오일성 (LS산전 전력연구소) ;
- 임성우 (한전 전력연구원) ;
- 김혜림 (한전 전력연구원) ;
- 현옥배 (한전 전력연구원)
- Published : 2007.07.18
Abstract
In order to apply resistive superconducting fault current limiters into electric power systems, the urgent issues to be settled are as follows, such as initial installation price of SFCL, operation and maintenance cost due to ac loss of superconductor and the life of cryostat, and high voltage and high current problems. The ac loss and high cost of superconductor and cryostat system are main bottlenecks for real application. Furthermore in order to increase voltage and current ratings of SFCL, a lot of superconductor components should be connected in series and parallel which resulted in extreme high cost. Thus, in order to make practical SFCL, we designed novel hybrid SFCL which combines superconductor and conventional electric equipment including vacuum interrupter, power fuse and current limiting reactor. The main purpose of hybrid SFCL is to drastically reduce total usage of superconductor by adopting current commutation method by use of superconductor and high fast switch. Consequently, it was possible to get the satisfactory test results using this method, and further works for practical applications are in the process.
Keywords