Cryogenics cooling system; current leads; high Tc superconducting (HTS) generator; thermal characteristics; Crucial parameters; Cryogenic cooling system; Current leads; High temperature superconducting; High-Tc; Superconducting state; Thermal behaviors; Thermal characteristics; Electronic, Optical and Magnetic Materials; Condensed Matter Physics; Electrical and Electronic Engineering
Abstract :
[en] A cooling system is an essential part of high-temperature superconducting (HTS) rotating machine manufacturing. Moreover, thermal behavior is a crucial parameter of the cooling system that shows unique characteristics of superconductivity below a specific temperature to maintain a superconducting state. Therefore, many experiments have been performed to investigate new reliable cryogenic cooling systems for a large-scale HTS rotating machine. The motivation for the study is our recent development of the cryogenic cooling system using thermal trigger switches; it effectively minimizes non-operational downtime of the HTS machine in cases of power supply or cryocooler failure. This paper focuses on two main targets. First, the thermal design of the cooling system for the 10 MW-class HTS rotating machine is enhanced. Second, the performance of the cooling system is observed for various cryogens to investigate the feasibility of using solid cryogen.
Disciplines :
Electrical & electronics engineering
Author, co-author :
LE, Thanh-Dung ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom ; Electrical Engineering Department, Jeju National University, Jeju-si, South Korea
Kim, Ji Hyung; Electrical Engineering Department, Jeju National University, Jeju-si, South Korea
Park, Sa Il; Electrical Engineering Department, Jeju National University, Jeju-si, South Korea
Kang, Dong-Hyung; Department of Materials Science and Engineering, Korea University, Seoul, South Korea
Lee, Haigun; Department of Materials Science and Engineering, Korea University, Seoul, South Korea
Jo, Young-Sik; Korea Electrotechnology Research Institute, Changwon-si, South Korea
Yoon, Yong Soo; Department of Electrical Engineering, Shin Ansan University, Ansan-si, South Korea
Kim, Ho Min; Electrical Engineering Department, Jeju National University, Jeju-si, South Korea
External co-authors :
yes
Language :
English
Title :
Thermal Design of a Cryogenics Cooling System for a 10 MW-Class High-Temperature Superconducting Rotating Machine
Publication date :
June 2015
Journal title :
IEEE Transactions on Applied Superconductivity
ISSN :
1051-8223
Publisher :
Institute of Electrical and Electronics Engineers Inc.
International Collaborative R&D Program New & Renewable Energy of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) Korea Government Ministry of Knowledge Economy
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