Analytic Study of the Active Quench Detection Method for High-Temperature Superconducting Magnet Using Resonance Circuit

Seunghyun Song; Yojong Choi; Woo Seung Lee; Kideok Sim; Young Jin Hwang; Jae Young Jang; Hyoungku Kang; Tae Kuk Ko

doi:10.1109/TASC.2018.2799192

Analytic Study of the Active Quench Detection Method for High-Temperature Superconducting Magnet Using Resonance Circuit

Seunghyun Song, Yojong Choi, Woo Seung Lee, Kideok Sim, Young Jin Hwang, Jae Young Jang, Hyoungku Kang, Tae Kuk Ko

Department of Electrical and Electronic Engineering

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

1 Citation (Scopus)

Abstract

The combination of a machine's rotation cycle and the unpredictable industrial interference encountered by rotating machinery can generate a time-varying noise signal. Such signals cause difficulty while detecting the quench voltage in superconducting rotating machinery. Quench detection is more difficult in high-temperature superconductors (HTS) than in low-temperature superconductors (LTS) because the normal zone propagation (NZP) velocity of HTS is lower than that of LTS. To detect the quench signal in an HTS, signal wires are widely used for voltage taps. However, owing to the low NZP velocity, it is difficult to detect the quench signal in HTS when the voltage taps are attached at short distances from the HTS devices. Furthermore, there is a possibility of the HTS burning out when voltage taps are attached to both ends of the HTS tape, because the hot spot is scarcely dissipative and thermal runaway may occur in the normal zone. Thus, detecting the quench in HTS rotating machinery is difficult. Moreover, the signal wires used in the voltage taps become twisted when the HTS rotor coil rotates to generate magnetic flux. Therefore, in this paper, a sensitive quench-detection method that uses electromagnetically coupled coils is presented for application to HTS rotating machinery.

Original language	English
Article number	4701304
Journal	IEEE Transactions on Applied Superconductivity
Volume	28
Issue number	3
DOIs	https://doi.org/10.1109/TASC.2018.2799192
Publication status	Published - 2018 Apr

Bibliographical note

Funding Information:
Manuscript received August 28, 2017; accepted January 23, 2018. Date of publication January 30, 2018; date of current version February 20, 2018. This work was supported in part by the National Research Foundation of Korea grant funded by the Korean Government (MSIP) 2017R1A2B3012208, in part by the “Human Resources Program in Energy Technology” of the Korea Institute of Energy Technology Evaluation and Planning, and in part by the Ministry of Trade, Industry, and Energy, Republic of Korea (20164030201100). (Corresponding author: Tae Kuk Ko.) S. Song and Y. Choi are with the School of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, South Korea.

Publisher Copyright:
© 2002-2011 IEEE.

All Science Journal Classification (ASJC) codes

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

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10.1109/TASC.2018.2799192

Cite this

@article{c1fd6d6277c94d8681918a8ada7bca68,

title = "Analytic Study of the Active Quench Detection Method for High-Temperature Superconducting Magnet Using Resonance Circuit",

abstract = "The combination of a machine's rotation cycle and the unpredictable industrial interference encountered by rotating machinery can generate a time-varying noise signal. Such signals cause difficulty while detecting the quench voltage in superconducting rotating machinery. Quench detection is more difficult in high-temperature superconductors (HTS) than in low-temperature superconductors (LTS) because the normal zone propagation (NZP) velocity of HTS is lower than that of LTS. To detect the quench signal in an HTS, signal wires are widely used for voltage taps. However, owing to the low NZP velocity, it is difficult to detect the quench signal in HTS when the voltage taps are attached at short distances from the HTS devices. Furthermore, there is a possibility of the HTS burning out when voltage taps are attached to both ends of the HTS tape, because the hot spot is scarcely dissipative and thermal runaway may occur in the normal zone. Thus, detecting the quench in HTS rotating machinery is difficult. Moreover, the signal wires used in the voltage taps become twisted when the HTS rotor coil rotates to generate magnetic flux. Therefore, in this paper, a sensitive quench-detection method that uses electromagnetically coupled coils is presented for application to HTS rotating machinery.",

author = "Seunghyun Song and Yojong Choi and Lee, {Woo Seung} and Kideok Sim and Hwang, {Young Jin} and Jang, {Jae Young} and Hyoungku Kang and Ko, {Tae Kuk}",

note = "Funding Information: Manuscript received August 28, 2017; accepted January 23, 2018. Date of publication January 30, 2018; date of current version February 20, 2018. This work was supported in part by the National Research Foundation of Korea grant funded by the Korean Government (MSIP) 2017R1A2B3012208, in part by the “Human Resources Program in Energy Technology” of the Korea Institute of Energy Technology Evaluation and Planning, and in part by the Ministry of Trade, Industry, and Energy, Republic of Korea (20164030201100). (Corresponding author: Tae Kuk Ko.) S. Song and Y. Choi are with the School of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, South Korea. Publisher Copyright: {\textcopyright} 2002-2011 IEEE.",

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AU - Hwang, Young Jin

AU - Jang, Jae Young

AU - Kang, Hyoungku

AU - Ko, Tae Kuk

N1 - Funding Information: Manuscript received August 28, 2017; accepted January 23, 2018. Date of publication January 30, 2018; date of current version February 20, 2018. This work was supported in part by the National Research Foundation of Korea grant funded by the Korean Government (MSIP) 2017R1A2B3012208, in part by the “Human Resources Program in Energy Technology” of the Korea Institute of Energy Technology Evaluation and Planning, and in part by the Ministry of Trade, Industry, and Energy, Republic of Korea (20164030201100). (Corresponding author: Tae Kuk Ko.) S. Song and Y. Choi are with the School of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, South Korea. Publisher Copyright: © 2002-2011 IEEE.

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N2 - The combination of a machine's rotation cycle and the unpredictable industrial interference encountered by rotating machinery can generate a time-varying noise signal. Such signals cause difficulty while detecting the quench voltage in superconducting rotating machinery. Quench detection is more difficult in high-temperature superconductors (HTS) than in low-temperature superconductors (LTS) because the normal zone propagation (NZP) velocity of HTS is lower than that of LTS. To detect the quench signal in an HTS, signal wires are widely used for voltage taps. However, owing to the low NZP velocity, it is difficult to detect the quench signal in HTS when the voltage taps are attached at short distances from the HTS devices. Furthermore, there is a possibility of the HTS burning out when voltage taps are attached to both ends of the HTS tape, because the hot spot is scarcely dissipative and thermal runaway may occur in the normal zone. Thus, detecting the quench in HTS rotating machinery is difficult. Moreover, the signal wires used in the voltage taps become twisted when the HTS rotor coil rotates to generate magnetic flux. Therefore, in this paper, a sensitive quench-detection method that uses electromagnetically coupled coils is presented for application to HTS rotating machinery.

AB - The combination of a machine's rotation cycle and the unpredictable industrial interference encountered by rotating machinery can generate a time-varying noise signal. Such signals cause difficulty while detecting the quench voltage in superconducting rotating machinery. Quench detection is more difficult in high-temperature superconductors (HTS) than in low-temperature superconductors (LTS) because the normal zone propagation (NZP) velocity of HTS is lower than that of LTS. To detect the quench signal in an HTS, signal wires are widely used for voltage taps. However, owing to the low NZP velocity, it is difficult to detect the quench signal in HTS when the voltage taps are attached at short distances from the HTS devices. Furthermore, there is a possibility of the HTS burning out when voltage taps are attached to both ends of the HTS tape, because the hot spot is scarcely dissipative and thermal runaway may occur in the normal zone. Thus, detecting the quench in HTS rotating machinery is difficult. Moreover, the signal wires used in the voltage taps become twisted when the HTS rotor coil rotates to generate magnetic flux. Therefore, in this paper, a sensitive quench-detection method that uses electromagnetically coupled coils is presented for application to HTS rotating machinery.

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Analytic Study of the Active Quench Detection Method for High-Temperature Superconducting Magnet Using Resonance Circuit

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