三相电磁干扰滤波器宽频电路快速建模方法

Research on Fast modeling of Three-Phase EMI Filter Broadband Model Based on Point-to-Point Impedance Function

三相电磁干扰(EMI)滤波器的宽频建模有助于滤波器的设计、产品性能的预估,是EMI分析预测的前提条件。针对现有的EMI滤波器模型在某些方面存在的不适用性,特别是在模型研究方面存在的不足,在点对点阻抗模型基础上提出一种三相EMI滤波器宽频电路快速建模方法。通过测量和试验,验证了所提模型的准确性。

The broadband modeling of three phase EMI filter is of great help for the design of the filter and the prediction of the performance of the product. It is the precondition for the analysis and forecast of electromagnetic interference（EMI）. Existing EMI filter models in some ways are not suitable, especially in three-phase EMI filter model to study the problems. Therefore, this paper proposed a feasible three-phase EMI broadband filter model, A fast modeling method of three-phase filter based on point to point impedance model was proposed, and the accuracy of the model was verified by the measurement and experiment.