Frontiers of Electrical and Electronic Engineering >

2009 , Vol. 4 >Issue 2: 214 - 219

DOI: https://doi.org/10.1007/s11460-009-0028-8

RESEARCH ARTICLE

Loading experiment and thermal analysis for conduction cooled magnet of SMES system

  • Gang WU , 1,2 ,
  • Huiling WANG 1 ,
  • Jiangbo XIE 1 ,
  • Yan ZHAO 1 ,
  • Yuejin TANG 1 ,
  • Jindong LI 1
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  • 1. Research Institute of Cryogenics, Huazhong University of Science and Technology, Wuhan 430074, China
  • 2. Department of Mechanical Engineering, Naval University of Engineering, Wuhan 430033, China

Published date: 05 Jun 2009

Copyright

2014 Higher Education Press and Springer-Verlag Berlin Heidelberg
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Abstract

China’s first 35 kJ high temperature superconducting magnetic energy storage (SMES) system with an experiment equipment was depicted. The dynamic heat analysis of the magnet of the SMES was conducted through the current load test on the directly cooled conduction magnet. The research results were as follows: when the converter charges and discharges the magnet for energy storage, the hysteresis loss is the main part of power loss, and contributes significantly to temperature rise; reducing the current frequency at the side of direct current is conducive to restraining temperature rise. The optimizing factors of the cool-guide structure were analyzed based on the heat stability theory, and it was found that the heat transfer of its key part (at the top of the magnet) must be strengthened to reduce the axial temperature difference of the magnet.

Key words： conduction cooled; superconducting magnetic energy storage (SMES) magnet; current load; thermal analysis

Cite this article

Gang WU , Huiling WANG , Jiangbo XIE , Yan ZHAO , Yuejin TANG , Jindong LI . Loading experiment and thermal analysis for conduction cooled magnet of SMES system[J]. Frontiers of Electrical and Electronic Engineering, 2009 , 4(2) : 214 -219 . DOI: 10.1007/s11460-009-0028-8

Acknowledgements

This work was supported by the Hi-Tech Research and Development Program of China (No. 2002AA306331-4), the National Natural Science Foundation of China (Grant No. 51076013), the Research Fund for the Doctoral Program of Higher Education of China (No. 200040487039).

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