Abstract：Aimed at the question of leakage magnetic field of air-core reactor, the corrective actions of magnetic shielding measures are taken. By installing hybrid passive magnetic shielding device, the magnetic field intensity is reduced in the aimed protected area and the health of staff and the security of equipments which working in the aimed area are protected and guaranteed. Under the excitation of sinusoidal current of certain frequency range, the analytical calculation formulas of eddy-current loss and shielding effective (SE) are solved by Poynting theorem and Maxwell equations. The finite element 3D models with different hybrid passive shielding are created to simulate the results of total eddy-current loss in shielding structure and the shielding effective of the observation point. By simulation, the electromagnetic properties of different combinations with hybrid passive shielding can be assessed and the suggestions and reference for the designers of hybrid passive magnetic shielding are provided.
鲍晓华, 张程, 胡云鹏. 空心电抗器的复合被动屏蔽结构的电磁性能分析[J]. 电工技术学报, 2016, 31(增刊): 68-75.
Bao Xiaohua, Zhang Cheng, Hu Yunpeng. Analytic Calculation of Electromagnetic Performance of Magnetic Field of Air-Core Reactor. Transactions of China Electrotechnical Society, 2016, 31(增刊): 68-75.
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2016, Vol. 31 
