EAST快控电源中空心电抗器磁热耦合分析（英文）  

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

作　　者：胡云鹏[1] 鲍晓华[1] 张程[1] 陈远洋[1] 高格[2] 

机构地区：[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

出　　处：《电气工程学报》2017年第4期1-9,共9页Journal of Electrical Engineering

基　　金：Project supported by the National Natural Science Funds of China(51377039,51677051)

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1500A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。Magnetic field generated core reactor of the experimental advanced by the pulse-current flowing into airsuperconducting 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.

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 

分 类 号：TM135[电气工程—电工理论与新技术]