摘要
提出一种新的频域模块化建模方法,用于预测功率变换器中传导电磁干扰噪声源。该建模方法以绝缘栅双极晶体管开关模块为基本单元,在一定的开关条件下,建立诺顿等效电路,获得噪声电流源和噪声源阻抗,连同传播路径一起构成功率变换器系统的电磁干扰预测模型。搭建一个标准的实验平台,可以方便地控制开关条件以及提取传播路径参数。实验结果表明,该模块化模型可以精确预测整个传导干扰频段内的电磁干扰噪声。最后的非线性分析验证了该方法的有效性和通用性。
A new frequency-domain modular modeling approach was proposed for predicting conducted electromagnetic interference（EMI） in power converter systems.A Norton equivalent circuit of the insulated-gate bipolar transistor（IGBT） switching module was modeled under a certain switching condition,from which the electromagnetic interference current source and the electromagnetic interference source impedance can be obtained.The electromagnetic interference prediction model in power converter systems was composed of the electromagnetic interference source and its propagation path.A standard test bed was used to control the switching conditions conveniently and to extract the propagation path parameters.Experiment results show that the modular modeling approach can predict the electromagnetic interference noise accurately in a power converter for the entire conducted electromagnetic interference frequency range.The nonlinear analysis is studied at last,the validity and generality are verified.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2012年第33期157-164,189,共8页
Proceedings of the CSEE
基金
黑龙江省自然基金项目(E200625)~~
关键词
绝缘栅双极晶体管开关模块
传导电磁干扰
诺顿等效电路
预测
insulated-gate bipolar transistor switching module
conducted electromagnetic interference
Norton equivalent circuit
prediction
