The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Study on Estimation Technique for Fault Location using Quadratic Interpolation in a Parallel Feeding AC Traction System

2차 보간법을 이용한 전기철도 급전계통의 고장점 산출 기법에 관한 연구

  • Min, Myung-Hwan (Dept. of Power Electronic System Lab, Entec electric & electronic., Ltd.) ;
  • An, Tae-Pung (Dept. of Power Electronic System Lab, Entec electric & electronic., Ltd.) ;
  • Kwon, Sung-il (KOREA RAILOAD) ;
  • Jung, Hosung (Dept. of R&D Strategy Division, Korea Railroad Research)
  • Received : 2017.01.05
  • Accepted : 2017.02.27
  • Published : 2017.03.01
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Abstract

Nowadays reactance method is being used as a technique for fault location in parallel feeding AC traction power system. However, implementation of this method requires a large number of field tests(ground fault) which is a huge burden on the operators. This paper presents a new estimation technique using quadratic interpolation to reduce number of times for field test and improves the accuracy of fault location. To verify a new technique, we solve AT feeding circuit and model it using PSCAD/EMTDC. Finally this paper conducts a comparative analysis of usefulness between a new technique and real field data.

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References

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