Monitoring method for an unbalanced three-phase HTS cable system via time-frequency domain reflectometry

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

doi:10.1109/TASC.2018.2809441

Monitoring method for an unbalanced three-phase HTS cable system via time-frequency domain reflectometry

Geon Seok Lee, Gyeong Hwan Ji, 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

16 Citations (Scopus)

Abstract

In this paper, we propose a new time-frequency based analysis method that monitors the state of the high temperature superconducting (HTS) cable system in a real-time manner and detects the current imbalance of HTS cable system. The new time-frequency-based method utilizes the cross Wigner-Ville distribution to analyze the time-frequency localized phase difference of the reflected signal, which varies depending on the insulation characteristics of the HTS cable system. Also, a real-world AC 22.9 kV 50 MVA HTS cable system and a current source are used to validate the performance of the new monitoring method in order to detect current imbalance phenomenon.

Original language	English
Article number	8302531
Journal	IEEE Transactions on Applied Superconductivity
Volume	28
Issue number	4
DOIs	https://doi.org/10.1109/TASC.2018.2809441
Publication status	Published - 2018 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.2018.2809441

Cite this

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title = "Monitoring method for an unbalanced three-phase HTS cable system via time-frequency domain reflectometry",

abstract = "In this paper, we propose a new time-frequency based analysis method that monitors the state of the high temperature superconducting (HTS) cable system in a real-time manner and detects the current imbalance of HTS cable system. The new time-frequency-based method utilizes the cross Wigner-Ville distribution to analyze the time-frequency localized phase difference of the reflected signal, which varies depending on the insulation characteristics of the HTS cable system. Also, a real-world AC 22.9 kV 50 MVA HTS cable system and a current source are used to validate the performance of the new monitoring method in order to detect current imbalance phenomenon.",

keywords = "Current imbalance, cross Wigner-Ville distribution (XWVD), high temperature superconducting (HTS) cable, phase difference (PD), time-frequency domain reflectometry (TFDR)",

author = "Lee, {Geon Seok} and Ji, {Gyeong Hwan} 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 - Ji, Gyeong Hwan

AU - Kwon, Gu Young

AU - Bang, Su Sik

AU - Lee, Yeong Ho

AU - Sohn, Song Ho

AU - Park, Kijun

AU - Shin, Yong June

PY - 2018/6

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AB - In this paper, we propose a new time-frequency based analysis method that monitors the state of the high temperature superconducting (HTS) cable system in a real-time manner and detects the current imbalance of HTS cable system. The new time-frequency-based method utilizes the cross Wigner-Ville distribution to analyze the time-frequency localized phase difference of the reflected signal, which varies depending on the insulation characteristics of the HTS cable system. Also, a real-world AC 22.9 kV 50 MVA HTS cable system and a current source are used to validate the performance of the new monitoring method in order to detect current imbalance phenomenon.

KW - Current imbalance

KW - cross Wigner-Ville distribution (XWVD)

KW - high temperature superconducting (HTS) cable

KW - phase difference (PD)

KW - time-frequency domain reflectometry (TFDR)

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Monitoring method for an unbalanced three-phase HTS cable system via time-frequency domain reflectometry

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

Access to Document

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