高均匀性稳态磁场发生装置的优化研究

Optimization of High Uniformity Steady-State Magnetic Field Generator

[目的]为了考核电力与电子设备的抗磁场干扰能力,需要进行相应的磁场抗扰度测试,其中高均匀性稳态磁场发生装置是稳态测试装置的核心部件。[方法]以常规Helmholtz和Maxwell方形线圈为研究对象,通过数值计算进行参数优化,解析得出能够产生高性能磁场的线圈结构,并使用有限元法建立模型进行计算,验证了结果的正确性。[结果]通过数值分析得出线圈参数的一般通用计算公式,并对比两种线圈型式,选择尺寸和功耗较小的优化型Maxwell方形线圈作为最终结构。[结论]为高均匀性稳态磁场发生装置提供了详细的计算过程和设计参考,可以给电气行业的相应设备设计提供理论依据。

[Introduction]To evaluate the anti magnetic interference ability of electrical and electronic devices,it is necessary to carry out the corresponding magnetic field immunity test,in which the high uniformity steady-state magnetic field generator is the core component of a steady-state test device.[Method]Taking the conventional Helmholtz and Maxwell square coil as the research object,the parameters were optimized through numerical calculation,and the coil structure that can produce high-performance magnetic field was obtained analytically.The finite element method was used to establish a model for calculation,and the correctness of the results was verified.[Result]The general calculation formula of coil parameters is obtained through numerical analysis,and the two coil types are compared.The optimized Maxwell square coil with small size and power consumption is selected as the final structure.[Conclusion]The research of this paper provides a detailed calculation process and design reference for the high uniformity steady-state magnetic field generator,and can provide a theoretical basis for the design of corresponding equipment in the electrical industry.