초전도 한류기 적용시 소형 분산전원시스템의 연계 위치에 따른 배전계통의 전압강하 분석Analysis on Bus Voltage Sag in Power Distribution System with SFCL according to Interconnected Locations of Small DG
- Other Titles
- Analysis on Bus Voltage Sag in Power Distribution System with SFCL according to Interconnected Locations of Small DG
- Authors
- 문종필; 손진근
- Issue Date
- 2013
- Publisher
- 대한전기학회
- Keywords
- Superconducting fault current limiter; Distributed generation; Protective coordination; Voltage sag
- Citation
- 전기학회 논문지 P권, v.62, no.4, pp.210 - 215
- Journal Title
- 전기학회 논문지 P권
- Volume
- 62
- Number
- 4
- Start Page
- 210
- End Page
- 215
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/15033
- ISSN
- 1229-800x
- Abstract
- This paper analyze the bus voltage sags in the power distribution system with a small scale cogeneration system when the superconducting fault current limiter was introduced. Among the solutions to decrease the short-circuit current considering the locations of the small scale cogeneration system, the superconducting fault current limiter (SFCL)has been announced as one of the promising methods to reduce the fault current because the installation of the small scale cogeneration system which increases the short-circuit current. According to the application locations of the small scale cogeneration system in a power distribution system, it has caused the variations of voltage sag and duration which depends on the change of the short-circuit current, which can make the operation of the protective device deviate from its original set value when the fault occurs. To investigate the voltage sag when a SFCL was applied into a power distribution system where the small scale cogeneration system was introduced into various locations, the SFCL, small scale cogeneration system, and power system are modeled using PSCAD/EMTDC. In this paper, the effects on voltage sags are assessed when the SFCL is installed in power distribution system with various locations of the small scale cogeneration system.
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