Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference (한국조명전기설비학회:학술대회논문집)
- 2004.11a
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- Pages.375-380
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- 2004
Power System Security Control Method for Quench Characteristic of High-Temperature Superconducting Cable
초전도 케이블의 퀜치 특성에 대한 계통안전성 제어방식
- Lee, Geun-Joon ;
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Hwang, Si-Dol
;
- Lee, Jeong-Phil (NESTI) ;
- Kim, Chang-Hyun (NESTI) ;
- Park, Hye-Chul (NESTI)
- Published : 2004.11.03
Abstract
This paper presents the basic quench protection idea for the HTS(High-Temperature Superconducting) cable. In Korea power system, the transfer capability of transmission line is limited by the voltage stability, and HTS cable could be one of the countermeasure to solve the transfer limit as its higher current capacity and lower impedance[1]. However, the quench characteristic of HTS cable makes HTS cable to loss its superconductivity, and therefore change the impedance of the line and power system operating condition dramatically. This pheonominum threats not only HTS cable safety but also power system security, therefore a proper protection scheme and security control counterplan have to be established before HTS cable implementation. In this paper, the quench characteristics of HTS cable for the fault current based on heat balance equation was established and a proper protection method by FCL(Fault Current Limiter) was suggested.
Keywords