基于小波分析的电力电子器件频谱估计研究

Asia-Pacific Conference on Environmental Electromagnetics, 2003. CEEM 2003. Proceedings. Pub Date : 1900-01-01 DOI:10.1109/CEEM.2003.237869

Xiong Rui, Huang Jin, Deng Wendan, Xie Yicong

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引用次数: 1

摘要

电磁干扰谱在电力电子器件电磁兼容预测中起着重要的作用。提出了一种频谱估计方法，结合傅里叶分析在精确频率定位方面的良好能力和小波分析在突变信号处理和自适应信号处理方面的特点，对系统的电磁干扰特性进行小波阈值处理。该方法通过仿真和功率变换器的实验结果得到了验证。

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The study of spectrum estimation in the power electronic devices based on wavelet analysis

The EMI spectrum plays an important role in the EMC prediction of the power electronic devices. A spectrum estimation method is presented, which combines the good ability of Fourier analysis in accurate frequency localization and the features of wavelet analysis both in saltation signal processing and in adaptive signal processing, to apply a wavelet thresholding to the EMI characteristic of the system. This thresholding method has been verified by simulation and the experiment results in a power converter.

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来源期刊

Asia-Pacific Conference on Environmental Electromagnetics, 2003. CEEM 2003. Proceedings.

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