Study on an accurate calculation of the conducted EMI noise of the power converters
Study on an accurate calculation of the conducted EMI noise of the power converters
复制标题
功率变换器传导EMI噪声精确计算的研究
DOI：
10.1109/ipec.2014.6870101
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
Toshihisa Shimizu
中科院分区：
文献类型：
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作者：
Shinpei Omata;Toshihisa Shimizu
有效地降低功率变流器产生的电磁干扰噪声已成为一项不可或缺的技术。为了满足CISPR22的要求，EMI滤波器必须配备功率转换器。众所周知，如果设计者能够预先知道其固有的EMI噪声，则可以更优化地设计EMI滤波器。提出了一种准确模拟功率变流器传导电磁干扰噪声的方法，并通过实验验证了该方法的有效性。利用这些结果，可以缩短功率转换器的设计时间，减小转换器的体积。此外，还提出了一种只需在逆变器中增加两个小电容的共模电流减小方法。
The efficient reduction of EMI noise generated by power converters has been an indispensable technology. In order to meet the requirements of CISPR22, EMI filters have to be equipped with power converters. It is widely known that an EMI filter can be designed more optimally if the designer could know its inherent EMI noise in advance. This paper presents an accurate simulation method for the conducted EMI noise in power converters and verifies its effectiveness through experiments. By using the results, it is possible to reduce the design time for the power converter as well as the volume of the converter. In addition, a novel common-mode current reduction method in which only two small capacitors are added to the inverter is proposed.