高电压技术2011，Vol.37Issue(6)：1384-1390,7.
采用改进支持向量机和复小波变换的谐波及间谐波测量方法
Harmonic and Inter-harmonic Measuring Method Using Improved Support Vector Machnie and Complex Wavelet Transform
摘要
Abstract
We developed a new harmonic detection method,namely,harmonics and interharmonics detecting method based on the improved SVM-complex wavelet transform.Through optimizing the accuracy of presupposition model,the improved SVM was applied to get the number and approximate frequency of harmonics and interharmonic by scanning the whole frequency band with low calculation amount.According to the spectrum supplied by improved SVM,complex wavelet transform was applied to detect harmonics and interharmonics＇ accurate frequency and amplitude of each component through configuration of complex band pass filter（CBPF） corresponding to CWT.Moreover,mutually uncrossed CBPF was constructed to inhibit interference of adjacent frequency component through the adjustment of bandwidth parameter of CWT,avoiding impair on measuring accuracy coming from asynchronous sampling.The results indicate that the interharmonic detecting method,based on improved support vector machines—complex continuous wavelet transform algorithm,can measure the frequency,amplitude and phase of harmonics and interharmonics,and has the advantages of high detecting accuracy and low calculation amount.关键词
电力系统谐波/间谐波/改进型支持向量机/复连续小波变换/复带通滤波器/小波混叠Key words
power system harmonic/interharmonic/improved support vector machine/complex continuous wavelet transform/complex band pass filter/wavelet aliasing分类
信息技术与安全科学引用本文复制引用
曹健,林涛,强晓刚,许建军..采用改进支持向量机和复小波变换的谐波及间谐波测量方法[J].高电压技术,2011,37(6):1384-1390,7.基金项目
国家自然科学基金 （）
