抄録
The Magnet technology of a high-temperature superconductor (HTS) with a conduction cooling system by a GM cryocooler has been advanced. It is very important to understand the thermal and electromagnetic phenomena in HTS tapes for HTS coil design. We have measured the quench characteristics of HTS tapes with a conduction cooling system of a GM cryocooler and developed a computer program based on the finite element method (FEM) to investigate the thermal and electromagnetic behaviors within HTS tapes. From these experimental and analytical results, the validity of the computer program has been confirmed. In this paper, we discuss a stability criterion for cryocooler-cooled HTS coils by using the computer program. The current at which "thermal runaway" occurs, which depends on the relationship between the cooling power of the GM cryocooler and the heat generation within HTS coils, is chosen as a stability criterion. We also investigate the transient thermal and electromagnetic behavior in HTS coils.
| 元の言語 | English |
|---|---|
| ページ（範囲） | 1832-1835 |
| ページ数 | 4 |
| ジャーナル | IEEE Transactions on Applied Superconductivity |
| 巻 | 11 |
| 発行部数 | 1 II |
| DOI | |
| 出版物ステータス | Published - 2001 3 |
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ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Physics and Astronomy (miscellaneous)
これを引用
A stability criterion for cryocooler-cooled HTS coils. / Ishiyama, Atsushi; Asai, H.
：: IEEE Transactions on Applied Superconductivity, 巻 11, 番号 1 II, 03.2001, p. 1832-1835.研究成果: Article
}
TY - JOUR
T1 - A stability criterion for cryocooler-cooled HTS coils
AU - Ishiyama, Atsushi
AU - Asai, H.
PY - 2001/3
Y1 - 2001/3
N2 - The Magnet technology of a high-temperature superconductor (HTS) with a conduction cooling system by a GM cryocooler has been advanced. It is very important to understand the thermal and electromagnetic phenomena in HTS tapes for HTS coil design. We have measured the quench characteristics of HTS tapes with a conduction cooling system of a GM cryocooler and developed a computer program based on the finite element method (FEM) to investigate the thermal and electromagnetic behaviors within HTS tapes. From these experimental and analytical results, the validity of the computer program has been confirmed. In this paper, we discuss a stability criterion for cryocooler-cooled HTS coils by using the computer program. The current at which "thermal runaway" occurs, which depends on the relationship between the cooling power of the GM cryocooler and the heat generation within HTS coils, is chosen as a stability criterion. We also investigate the transient thermal and electromagnetic behavior in HTS coils.
AB - The Magnet technology of a high-temperature superconductor (HTS) with a conduction cooling system by a GM cryocooler has been advanced. It is very important to understand the thermal and electromagnetic phenomena in HTS tapes for HTS coil design. We have measured the quench characteristics of HTS tapes with a conduction cooling system of a GM cryocooler and developed a computer program based on the finite element method (FEM) to investigate the thermal and electromagnetic behaviors within HTS tapes. From these experimental and analytical results, the validity of the computer program has been confirmed. In this paper, we discuss a stability criterion for cryocooler-cooled HTS coils by using the computer program. The current at which "thermal runaway" occurs, which depends on the relationship between the cooling power of the GM cryocooler and the heat generation within HTS coils, is chosen as a stability criterion. We also investigate the transient thermal and electromagnetic behavior in HTS coils.
KW - Cryocooler-cooled HTS coil
KW - Finite element analysis
KW - Stability criterion
KW - Thermal runaway current
UR - http://www.scopus.com/inward/record.url?scp=0035268438&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0035268438&partnerID=8YFLogxK
U2 - 10.1109/77.920204
DO - 10.1109/77.920204
M3 - Article
AN - SCOPUS:0035268438
VL - 11
SP - 1832
EP - 1835
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
SN - 1051-8223
IS - 1 II
ER -