空心电抗器磁场屏蔽效果研究

Research of Magnetic Shielding Effect of Air-core Reactor

在采用防磁板对城轨列车空心电抗器产生的磁场进行屏蔽时,为综合分析各种因素对防磁板屏蔽效果的影响,利用有限元分析软件Ansoft Maxwell建立防磁板与空心电抗器系统磁场的三维模型并进行有限元仿真试验,分别讨论防磁板材料种类、防磁板厚度及电抗器线圈电流对屏蔽效果的影响,所得结论对后续空心电抗器磁场屏蔽的研究具有重要的指导意义。

For a shielding system with a magnetic board above an air-core reactor of urban rail vehicle, in order to analyze all kinds of facts that affect the magnetic shielding effects, 3D model of the magnetic board shielding system using the Ansoft Maxwell finite element software was established, and finite element simulation experiments were put forward. Effects of different material＇s types, different thickness and different magnetic coil current were discussed, the results of which had important guidance for the research on air-core reactor magnetic shielding.