Insulation characteristics and fault analysis of HTS cable via stepped frequency waveform reflectometry

Chun Kwon Lee; Gu Young Kwon; Yeong Ho Lee; Geon Seok Lee; Su Sik Bang; Yong June Shin

doi:10.1109/TASC.2019.2903740

Insulation characteristics and fault analysis of HTS cable via stepped frequency waveform reflectometry

Chun Kwon Lee, Gu Young Kwon, Yeong Ho Lee, Geon Seok Lee, Su Sik Bang, Yong June Shin

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

The characteristics of the HTS cable including conductivity, permittivity, and insulation characteristics vary depending on the conditions of temperature and pressure during operations. We propose a diagnostic method that estimates the propagation constant of the HTS cable and detect the location and the degree of the fault using stepped frequency waveform reflectometry. The performance of proposed method is verified by the HTS cable experiment regarding the propagation constant estimation and the fault detection. The results of HTS cable cooled by the liquid nitrogen are also compared with the results at the room temperature to analyze the insulation characteristics change according to the state. The proposed method is expected to be further applied to monitor the condition of HTS cable system regarding temperature and pressure.

Original language	English
Article number	8662584
Journal	IEEE Transactions on Applied Superconductivity
Volume	29
Issue number	5
DOIs	https://doi.org/10.1109/TASC.2019.2903740
Publication status	Published - 2019 Aug

Bibliographical note

Publisher Copyright:
© 2002-2011 IEEE.

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

Access to Document

10.1109/TASC.2019.2903740

Cite this

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title = "Insulation characteristics and fault analysis of HTS cable via stepped frequency waveform reflectometry",

abstract = "The characteristics of the HTS cable including conductivity, permittivity, and insulation characteristics vary depending on the conditions of temperature and pressure during operations. We propose a diagnostic method that estimates the propagation constant of the HTS cable and detect the location and the degree of the fault using stepped frequency waveform reflectometry. The performance of proposed method is verified by the HTS cable experiment regarding the propagation constant estimation and the fault detection. The results of HTS cable cooled by the liquid nitrogen are also compared with the results at the room temperature to analyze the insulation characteristics change according to the state. The proposed method is expected to be further applied to monitor the condition of HTS cable system regarding temperature and pressure.",

keywords = "Fault localization, high temperature superconducting (HTS) cable insulation, reflectometry, stepped frequency waveform reflectometry (SFWR)",

author = "Lee, {Chun Kwon} and Kwon, {Gu Young} and Lee, {Yeong Ho} and Lee, {Geon Seok} and Bang, {Su Sik} and Shin, {Yong June}",

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T1 - Insulation characteristics and fault analysis of HTS cable via stepped frequency waveform reflectometry

AU - Lee, Chun Kwon

AU - Kwon, Gu Young

AU - Lee, Yeong Ho

AU - Lee, Geon Seok

AU - Bang, Su Sik

AU - Shin, Yong June

PY - 2019/8

Y1 - 2019/8

N2 - The characteristics of the HTS cable including conductivity, permittivity, and insulation characteristics vary depending on the conditions of temperature and pressure during operations. We propose a diagnostic method that estimates the propagation constant of the HTS cable and detect the location and the degree of the fault using stepped frequency waveform reflectometry. The performance of proposed method is verified by the HTS cable experiment regarding the propagation constant estimation and the fault detection. The results of HTS cable cooled by the liquid nitrogen are also compared with the results at the room temperature to analyze the insulation characteristics change according to the state. The proposed method is expected to be further applied to monitor the condition of HTS cable system regarding temperature and pressure.

AB - The characteristics of the HTS cable including conductivity, permittivity, and insulation characteristics vary depending on the conditions of temperature and pressure during operations. We propose a diagnostic method that estimates the propagation constant of the HTS cable and detect the location and the degree of the fault using stepped frequency waveform reflectometry. The performance of proposed method is verified by the HTS cable experiment regarding the propagation constant estimation and the fault detection. The results of HTS cable cooled by the liquid nitrogen are also compared with the results at the room temperature to analyze the insulation characteristics change according to the state. The proposed method is expected to be further applied to monitor the condition of HTS cable system regarding temperature and pressure.

KW - Fault localization

KW - high temperature superconducting (HTS) cable insulation

KW - reflectometry

KW - stepped frequency waveform reflectometry (SFWR)

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Insulation characteristics and fault analysis of HTS cable via stepped frequency waveform reflectometry

Abstract

Bibliographical note

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