基于NIF的IGBT宽频电路快速建模方法

摘要

The power system equipment or part of a wide frequency modeling for the main purpose is analysis of the effect of broadband interference signal of the normal work.Insulated gate bipolar transistor(IGBT) with its excellent performance is becoming an integral part of the power system in composition.A practical IGBT broadband model is particularly important.Based on node-to-node impedance function (NIF) model,a high speed IGBT modeling method is prop-osed.Through measurement and experimental verification.The accuracy of the model is proved.%对电力系统设备或某一部分进行宽频建模的主要目的是分析宽频干扰信号对其正常工作的影响.绝缘栅双极型晶体管(IGBT)以其优异的性能正逐渐成为电力系统中不可或缺的组成,现有的IGBT模型因其各方面缺陷在实际应用上存在不适用性,故提出一种可行的IGBT宽频模型尤为重要.在点对点阻抗模型(NIF)基础上提出一种IGBT快速建模方法,通过测量及实验验证,证明了该模型的准确性.