详细信息

基于分数阶Fourier变换的反电动势滤波方法    

Back-EMF Filtering Method Based on Fractional Fourier Transformation

文献类型:期刊文献

中文题名:基于分数阶Fourier变换的反电动势滤波方法

英文题名:Back-EMF Filtering Method Based on Fractional Fourier Transformation

作者:张淑艳[1];王行愚[1];姚晓东[1]

机构:[1]华东理工大学信息科学与工程学院,上海200237

年份:2010

卷号:40

期号:8

起止页码:31

中文期刊名:电气传动

外文期刊名:Electric Drive

收录:CSTPCD;;北大核心:【北大核心2008】;

语种:中文

中文关键词:反电动势滤波;无位置控制;分数阶Fourier变换;无刷直流电机

外文关键词:back-electromotive force filtering; sensorless position control; fractional Fourier transformation(FrFT); brushless DC motor(BLDCM)

摘要:无位置BLDCM控制的关键是获得准确的转子位置信息,在深入分析BLDCM反电动势信号的基础上,结合分数阶Fourier变换在时域和频域的滤波特性,提出基于分数阶Fourier变换的反电动势滤波方法,该方法可以滤除反电动势信号中的噪声,获得完全满足实际工程需要的反电动势过零点信息。实验测试结果表明,该方法可靠、稳定。
The accurate rotor position is core of the sensorless brushless DC motor(BLDCM) control.In order to provide a back-electromotive force(EMF) filtering method base on fractional Fourier transformation(FrFT),back-EMF signal was analyzed in detail.The method makes use of filtering performance of FrFT in the time and frequency domain and can filter noise and obtain the zero-cross event accurately and satisfying request of real project.It is well demonstrated from experiment that the proposed control method is provided with desirable reliability and stability.

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