Power electronic equipment regulated by the International Thermonuclear Experimental Reactor (ITER) organization must pass the relevant steady-state magnetic-field immunity test. To improve the design of the test system, the mathematical model of the multicoil square configuration system is established. The relationship between the dimension and the number of ampere-turns of the two-coil system and the three-coil system is studied. The design idea is extended to a system consisting of four or more coils. The factors affecting the magnetic-field uniformity of the three-coil system are studied by using the finite-element method (FEM). By comparing the simulation results with the measured values, the satisfactory test results can provide an excellent test system for the ITER static magnetic-field immunity test.

中文翻译：

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大口径稳态磁场测试系统设计及误差分析


国际热核实验堆（ITER）组织监管的电力电子设备必须通过相关的稳态磁场抗扰度测试。为了完善测试系统的设计，建立了多线圈方形配置系统的数学模型。研究了二线圈系统和三线圈系统的尺寸与安匝数的关系。该设计思想扩展到由四个或更多线圈组成的系统。利用有限元方法（FEM）研究了影响三线圈系统磁场均匀性的因素。通过将仿真结果与实测值进行比较，令人满意的测试结果可以为ITER静磁场抗扰度测试提供优良的测试系统。