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。
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