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Analysis on the Protective Coordination with Hybrid Superconducting Fault Current Limiter

반주기 이후 동작 하이브리드 초전도 전류제한기와 보호기기 협조 분석

  • Received : 2011.01.13
  • Accepted : 2011.09.14
  • Published : 2011.10.01

Abstract

The fault current has increased due to the large power demand in power distribution system and network distribution system. To protect the power system effectively from the increased fault current, the superconducting fault current limiter (SFCL) has been notified. However, the conventional SFCL has some problems such as cost, operation, recovery, loss. To solve some problems, the hybrid superconducting fault current limiter using the fast switch was proposed. However, hybrid SFCL also has a problem that is protection coordination in power distribution system with hybrid SFCL. In this paper, the fault current limiting characteristics of hybrid SFCL with first half cycle non-limiting operation according to the fault angle, the resistance of superconducting element, and the magnitude of Current Limit Resistor (CLR) which are the components of hybrid SFCL were analyzed through the experiments.

Acknowledgement

Supported by : 한국에너지 기술평가원(KETEP)

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  1. Analysis on the Operational Characteristic between the Protective devices and Superconducting Fault Current Limiter with a Peak Current Limiting Function in the Power Distribution System vol.26, pp.11, 2012, https://doi.org/10.5207/JIEIE.2012.26.11.075