Design of conduction cooling system for a high current HTS DC reactor

29th International Symposium on Superconductivity

Dao, Van Quan^1 ; Kim, Taekue^1 ; Tat, Thang Le^1 ; Sung, Haejin^1 ; Choi, Jongho^1 ; Kim, Kwangmin^1 ; Hwang, Chul-Sang^1 ; Park, Minwon^1 ; Yu, In-Keun^1

Changwon National University, 20 Changwondaehak-ro, Changwon

51140, Korea, Republic of^1

关键词: Conduction-cooling;    Finite element method models;    High temperature superconducting;    High temperature superconducting (HTS) magnets;    Operating currents;    Optimal design parameters;    Superconducting state;    Thermo-mechanical characteristics;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/871/1/012089/pdf
DOI  :  10.1088/1742-6596/871/1/012089

来源: IOP

【 摘 要 】

A DC reactor using a high temperature superconducting (HTS) magnet reduces the reactor's size, weight, flux leakage, and electrical losses. An HTS magnet needs cryogenic cooling to achieve and maintain its superconducting state. There are two methods for doing this: one is pool boiling and the other is conduction cooling. The conduction cooling method is more effective than the pool boiling method in terms of smaller size and lighter weight. This paper discusses a design of conduction cooling system for a high current, high temperature superconducting DC reactor. Dimensions of the conduction cooling system parts including HTS magnets, bobbin structures, current leads, support bars, and thermal exchangers were calculated and drawn using a 3D CAD program. A finite element method model was built for determining the optimal design parameters and analyzing the thermo-mechanical characteristics. The operating current and inductance of the reactor magnet were 1,500 A, 400 mH, respectively. The thermal load of the HTS DC reactor was analyzed for determining the cooling capacity of the cryo-cooler. The study results can be effectively utilized for the design and fabrication of a commercial HTS DC reactor.