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

The Korean Institute of Electrical Engineers (대한전기학회)
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Instantaneous Frequency Estimation of the Gaussian Enveloped Linear Chirp Signal for Localizing the Faults of the Instrumental Cable in Nuclear Power Plant

가우시안 포락선 선형 첩 신호의 순시 주파수 추정을 통한 원전 내 계측 케이블의 고장점 진단 연구

  • Lee, Chun Ku (Department of Electrical and Electronic Engineering, Yonsei University) ;
  • Park, Jin Bae (Department of Electrical and Electronic Engineering, Yonsei University) ;
  • Yoon, Tae Sung (Department of Electrical Engineering, Changwon National University)
  • 이춘구 (연세대학교 대학원 전기전자공학과) ;
  • 박진배 (연세대학교 전기공학과) ;
  • 윤태성 (창원대학교 전기공학과)
  • Received : 2013.05.19
  • Accepted : 2013.06.25
  • Published : 2013.07.01
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Abstract

Integrity of the control and instrumental cables in nuclear power plant is important to maintain the stability of the nuclear power plants. In order to diagnose the integrity of the cables, the diagnostic methods based on reflectometry have been studied. The reflectometry is a non-destructive method and it is applicable to diagnose the live cables. We introduce a Gaussian enveloped linear chirp reflectometry to diagnose the cables in the nuclear power plants. In this paper, we estimate the instantaneous frequency of the Gaussian enveloped linear chirp signal by using the weighted robust least squares filtering to localize the impedance discontinuities in the class 1E instrumental cable.

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References

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