Monitoring Electrical and Thermal Characteristics of HTS Cable Systems via Time-Frequency Domain Reflectometry

Geon Seok Lee; Gu Young Kwon; Su Sik Bang; Yeong Ho Lee; Song Ho Sohn; Kijun Park; Yong June Shin

doi:10.1109/TASC.2017.2652330

Monitoring Electrical and Thermal Characteristics of HTS Cable Systems via Time-Frequency Domain Reflectometry

Geon Seok Lee, Gu Young Kwon, Su Sik Bang, Yeong Ho Lee, Song Ho Sohn, Kijun Park, Yong June Shin

Department of Electrical and Electronic Engineering

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

18 Citations (Scopus)

Abstract

A high-temperature superconducting (HTS) cable system with the 22.9 kV, 50 MVA, and 410 m length is installed and operated at 154 kV Icheon substation of Korea Electric Power Corporation (KEPCO). Unfortunately, it is a difficult task to diagnose and monitor electrical and thermal characteristics of the HTS cable system in a real-time manner. In order to protect operational failures of grid-connected HTS cable systems, this paper proposes time-frequency domain reflectometry (TFDR) and analysis techniques, i.e., time-frequency cross correlation and instantaneous frequency estimation. To verify the performance of the proposed method, the temperature is changed via the cryogenic refrigeration system and the status of the grid-connected HTS cable is monitored via TFDR in a real-time manner.

Original language	English
Article number	7815344
Journal	IEEE Transactions on Applied Superconductivity
Volume	27
Issue number	4
DOIs	https://doi.org/10.1109/TASC.2017.2652330
Publication status	Published - 2017 Jun

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.2017.2652330

Cite this

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title = "Monitoring Electrical and Thermal Characteristics of HTS Cable Systems via Time-Frequency Domain Reflectometry",

abstract = "A high-temperature superconducting (HTS) cable system with the 22.9 kV, 50 MVA, and 410 m length is installed and operated at 154 kV Icheon substation of Korea Electric Power Corporation (KEPCO). Unfortunately, it is a difficult task to diagnose and monitor electrical and thermal characteristics of the HTS cable system in a real-time manner. In order to protect operational failures of grid-connected HTS cable systems, this paper proposes time-frequency domain reflectometry (TFDR) and analysis techniques, i.e., time-frequency cross correlation and instantaneous frequency estimation. To verify the performance of the proposed method, the temperature is changed via the cryogenic refrigeration system and the status of the grid-connected HTS cable is monitored via TFDR in a real-time manner.",

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

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AU - Lee, Geon Seok

AU - Kwon, Gu Young

AU - Bang, Su Sik

AU - Lee, Yeong Ho

AU - Sohn, Song Ho

AU - Park, Kijun

AU - Shin, Yong June

PY - 2017/6

Y1 - 2017/6

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AB - A high-temperature superconducting (HTS) cable system with the 22.9 kV, 50 MVA, and 410 m length is installed and operated at 154 kV Icheon substation of Korea Electric Power Corporation (KEPCO). Unfortunately, it is a difficult task to diagnose and monitor electrical and thermal characteristics of the HTS cable system in a real-time manner. In order to protect operational failures of grid-connected HTS cable systems, this paper proposes time-frequency domain reflectometry (TFDR) and analysis techniques, i.e., time-frequency cross correlation and instantaneous frequency estimation. To verify the performance of the proposed method, the temperature is changed via the cryogenic refrigeration system and the status of the grid-connected HTS cable is monitored via TFDR in a real-time manner.

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Monitoring Electrical and Thermal Characteristics of HTS Cable Systems via Time-Frequency Domain Reflectometry

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

Access to Document

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