模型对开关模块的电磁干扰进行了分析，用于变换器系统电磁干扰的表征和预测

Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting. Pub Date : 2004-11-01 DOI:10.1109/IAS.2004.1348717

Q. Liu, F. Wang, D. Boroyevich

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引用次数: 27

摘要

本文提出了一种新的频率域电磁干扰(EMI)噪声预测方法，用于变工况开关电源变换器，如直流-交流变换器。这项工作提出了一种实用而有效的方法，该方法基于在一个开关周期开发的EMI噪声等效频域源模型(temfsm)。研究了差模噪声和共模噪声的预测方法。通过半桥变换器的仿真和实验验证了该方法的有效性。该方法可应用于具有不同开关控制方案的变换器。它还可以应用于各种变换器，如DC-DC变换器和三相脉宽调制(PWM)逆变器。

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Model conducted EMI emission of switching modules for converter system EMI characterization and prediction

This paper proposes a new frequency-domain electromagnetic interference (EMI) noise prediction method for switching power converters with variable operating conditions such as DC-AC converters. This work presents a practical and efficient approach that is based on an EMI noise Thevenin equivalent frequency-domain source model (TEFSM) developed at one switching period. The prediction methods for both differential-mode (DM) and common-mode (CM) noise are studied. The methodology is verified by simulations and experiments using a half-bridge converter. This approach can be applied to converters with different switching control schemes. Also it can be applied to a variety of converters, such as DC-DC converters and three-phase pulse-width modulation (PWM) inverters.

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Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting.

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