电气工程学报 ›› 2017, Vol. 12 ›› Issue (4): 1-9.doi: 10.11985/2017.04.001

• 理论研究 •    下一篇

EAST快控电源中空心电抗器磁热耦合分析

胡云鹏1,鲍晓华1,张程1,陈远洋1,高格2   

  1. 1.合肥工业大学电气工程与自动化工程学院 合肥 23009
    2.中国科学院等离子体物理研究所 合肥 23000
  • 收稿日期:2017-02-22 出版日期:2017-04-25 发布日期:2019-12-23
  • 作者简介:Hu Yunpeng (胡云鹏), male, was born in 1992, a postgraduate. his main research interests are in the field of magnetic field analysis and electromagnetic shielding.|Bao Xiaohua (鲍晓华), male, was born in 1972, professor,his main research interests are in the field of motor design, magnetic field analysis, and finite element analysis.

Magnetic-Thermal Coupling Analysis of Air-Core Reactor in EAST Fast Control Power Supply

Hu Yunpeng1,Bao Xiaohua1,Zhang Cheng1,Chen Yuanyang1,Gao Ge2   

  1. 1.School of Electrical Engineering and Automation Hefei University of Technology Hefei 23009 China
    2.Chinese Academy of Sciences Institute of Plasma Physics Hefei 23000 China
  • Received:2017-02-22 Online:2017-04-25 Published:2019-12-23
  • Supported by:
    Project supported by the National Natural Science Funds of China(51377039);Project supported by the National Natural Science Funds of China(51677051)

摘要:

当脉冲电流通过实验先进超导托卡马克 (EAST)快控电源中空心电抗器时会产生磁场,导致输出柜发热。为了解决热问题,在空心电抗器周围安装一层或两层屏蔽体。电流幅值最大为1 500A时,求解空心电抗器周围磁场分布以及输出柜的涡流损耗。将涡流损耗作为主要的热源,根据电磁学和热力学理论建立电抗器的三维磁热耦合有限元模型。本文对空心电抗器的温度场进行分析和讨论。结果表明,在屏蔽条件下空心电抗器的磁场和输出柜的温度都会降低。

关键词: EAST快控电源, 输出柜, 空心电抗器, 磁场, 屏蔽体, 涡流损耗温度

Abstract:

Magnetic field generated by the pulse-current flowing into air-core reactor of the experimental advanced superconducting Tokamak (EAST) fast control power supply may cause a thermal problem in output cabinet. To solve the thermal problem, a layer or two layers of shielding are arranged around the air core reactor. When the maximum amplitude of the pulse current is 1 500A, the calculation method of magnetic field distribution around the air-core reactor is studied, as well as the output cabinet of eddy current loss. Taking eddy current loss as a main thermal source, three dimensional (3D) magnetic-thermal coupled finite element models of the reactor are established according to electromagnetism and thermodynamics theories. Temperature field of air-core reactor is analyzed and discussed in this paper. The results show that the magnetic field around air-core reactor and the temperature of output cabinet are decreased under shielded condition.

Key words: EAST fast control power supply, output cabinet, air-core reactor, magnetic field, shield, eddy current loss temperature

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