Conceptual design of cooling anchor for current lead on HTS field coils

C. J. Hyeon; J. H. Kim; H. L. Quach; S. H. Chae; Y. S. Yoon; J. Lee; S. H. Han; H. Jeon; Y. H. Choi; H. G. Lee; H. M. Kim

doi:10.9714/psac.2017.19.2.038

Conceptual design of cooling anchor for current lead on HTS field coils

C. J. Hyeon, J. H. Kim, H. L. Quach, S. H. Chae, Y. S. Yoon, J. Lee, S. H. Han, H. Jeon, Y. H. Choi, H. G. Lee, H. M. Kim

Department of Materials Science and Engineering

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

4 Citations (Scopus)

Abstract

The role of current lead in high-temperature superconducting synchronous machine (HTSSM) is to function as a power supply by connecting the power supply unit at room temperature with the HTS field coils at cryogenic temperature. Such physical and electrical connection causes conduction and Joule-heating losses, which are major thermal losses of HTSSM rotors. To ensure definite stability and economic feasibility of HTS field coils, quickly and smoothly cooling down the current lead is a key design technology. Therefore, in this paper, we introduce a novel concept of a cooling anchor to enhance the cooling performance of a metal current lead. The technical concept of this technology is the simultaneously chilling and supporting the current lead. First, the structure of the current lead and cooling anchor were conceptually designed for field coils for a 1.5 MW-class HTSSM. Then, the effect of this installation on the thermal characteristics of HTS coils was investigated by 3D finite element analysis.

Original language	English
Pages (from-to)	38-43
Number of pages	6
Journal	Progress in Superconductivity and Cryogenics (PSAC)
Volume	19
Issue number	2
DOIs	https://doi.org/10.9714/psac.2017.19.2.038
Publication status	Published - 2017 Jun

Keywords

Conduction cooling
Cooling anchor
Current lead
HTS synchronous machine
Neon

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.9714/psac.2017.19.2.038

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@article{e33eccef54a1415fb209745fa8a6902c,

title = "Conceptual design of cooling anchor for current lead on HTS field coils",

abstract = "The role of current lead in high-temperature superconducting synchronous machine (HTSSM) is to function as a power supply by connecting the power supply unit at room temperature with the HTS field coils at cryogenic temperature. Such physical and electrical connection causes conduction and Joule-heating losses, which are major thermal losses of HTSSM rotors. To ensure definite stability and economic feasibility of HTS field coils, quickly and smoothly cooling down the current lead is a key design technology. Therefore, in this paper, we introduce a novel concept of a cooling anchor to enhance the cooling performance of a metal current lead. The technical concept of this technology is the simultaneously chilling and supporting the current lead. First, the structure of the current lead and cooling anchor were conceptually designed for field coils for a 1.5 MW-class HTSSM. Then, the effect of this installation on the thermal characteristics of HTS coils was investigated by 3D finite element analysis.",

keywords = "Conduction cooling, Cooling anchor, Current lead, HTS synchronous machine, Neon",

author = "Hyeon, {C. J.} and Kim, {J. H.} and Quach, {H. L.} and Chae, {S. H.} and Yoon, {Y. S.} and J. Lee and Han, {S. H.} and H. Jeon and Choi, {Y. H.} and Lee, {H. G.} and Kim, {H. M.}",

note = "Funding Information: This work was supported in part by the Human Resources Program in Energy Technology of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), grant funded by the Ministry of Trade, Industry & Energy, and by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP), Republic of Korea. (Nos. 20164030201230 and 2016R1A2B4007324) Publisher Copyright: {\textcopyright} 2017, Korea Institute of Applied Superconductivity and Cryogenics. All rights reserved.",

year = "2017",

month = jun,

doi = "10.9714/psac.2017.19.2.038",

language = "English",

volume = "19",

pages = "38--43",

journal = "Progress in Superconductivity and Cryogenics (PSAC)",

issn = "1229-3008",

publisher = "Korea Institute of Applied Superconductivity and Cryogenics",

number = "2",

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TY - JOUR

T1 - Conceptual design of cooling anchor for current lead on HTS field coils

AU - Hyeon, C. J.

AU - Kim, J. H.

AU - Quach, H. L.

AU - Chae, S. H.

AU - Yoon, Y. S.

AU - Lee, J.

AU - Han, S. H.

AU - Jeon, H.

AU - Choi, Y. H.

AU - Lee, H. G.

AU - Kim, H. M.

N1 - Funding Information: This work was supported in part by the Human Resources Program in Energy Technology of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), grant funded by the Ministry of Trade, Industry & Energy, and by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP), Republic of Korea. (Nos. 20164030201230 and 2016R1A2B4007324) Publisher Copyright: © 2017, Korea Institute of Applied Superconductivity and Cryogenics. All rights reserved.

PY - 2017/6

Y1 - 2017/6

N2 - The role of current lead in high-temperature superconducting synchronous machine (HTSSM) is to function as a power supply by connecting the power supply unit at room temperature with the HTS field coils at cryogenic temperature. Such physical and electrical connection causes conduction and Joule-heating losses, which are major thermal losses of HTSSM rotors. To ensure definite stability and economic feasibility of HTS field coils, quickly and smoothly cooling down the current lead is a key design technology. Therefore, in this paper, we introduce a novel concept of a cooling anchor to enhance the cooling performance of a metal current lead. The technical concept of this technology is the simultaneously chilling and supporting the current lead. First, the structure of the current lead and cooling anchor were conceptually designed for field coils for a 1.5 MW-class HTSSM. Then, the effect of this installation on the thermal characteristics of HTS coils was investigated by 3D finite element analysis.

AB - The role of current lead in high-temperature superconducting synchronous machine (HTSSM) is to function as a power supply by connecting the power supply unit at room temperature with the HTS field coils at cryogenic temperature. Such physical and electrical connection causes conduction and Joule-heating losses, which are major thermal losses of HTSSM rotors. To ensure definite stability and economic feasibility of HTS field coils, quickly and smoothly cooling down the current lead is a key design technology. Therefore, in this paper, we introduce a novel concept of a cooling anchor to enhance the cooling performance of a metal current lead. The technical concept of this technology is the simultaneously chilling and supporting the current lead. First, the structure of the current lead and cooling anchor were conceptually designed for field coils for a 1.5 MW-class HTSSM. Then, the effect of this installation on the thermal characteristics of HTS coils was investigated by 3D finite element analysis.

KW - Conduction cooling

KW - Cooling anchor

KW - Current lead

KW - HTS synchronous machine

KW - Neon

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JO - Progress in Superconductivity and Cryogenics (PSAC)

JF - Progress in Superconductivity and Cryogenics (PSAC)

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ER -

Conceptual design of cooling anchor for current lead on HTS field coils

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Keywords

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