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Analysis on Operation Characteristics of Hybrid Superconductor Fault Current Limiter(SFCL) with First Half Cycle Non-Limiting Operation

반주기 이후 하이브리드 초전도 전류제한기의 동작 특성 분석

  • Received : 2010.07.08
  • Accepted : 2011.01.04
  • Published : 2011.02.01

Abstract

Due to large demand, the increase of fault current has caused the capacity of power machines in power grid to increase. Among several countermeasures, the superconducting fault current limiter (SFCL) has been noticed as one of the promising countermeasures to solve these problems. However, in spite of excellent current limiting performances of the SFCL, the application of SFCL to power system has been delayed due to both the limited space for the SFCL's installation and its longer recovery time after the fault removal. In order to solve these problems, a hybrid type SFCL was developed. In this paper, we studied the operation characteristics of the hybrid SFCL with first half cycle non-limiting operation by modelling using PSCAD/EMTDC and experiment. It was shown through the simulation using PSCAD/EMTDC and the simulated experiment that the fault current limiting and the fast recovery operations of the hybrid SFCL with the first half cycle non-limiting operation were achieved.

Keywords

Superconducting fault current limiter;Hybrid;After half cycle;Recovery;PSCAD/EMTDC

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Acknowledgement

Supported by : 기초전력연구원