现代电子技术2017，Vol.40Issue(4)：32-35,4.DOI:10.16652/j.issn.1004-373x.2017.04.009
基于多级SVD算法的电能质量复合扰动特征分析
Characteristics analysis of power quality mixed disturbances based on multi-level SVD algorithm
摘要
Abstract
Aiming at the feature extraction of power quality mixed disturbances,a feature extraction method based on multi⁃level singular value decomposition(SVD)is proposed to solve the difficulty. Based on the decomposition principle of single⁃lev⁃el SVD and two⁃line Hankel matrix,SVD multi⁃level recursion decomposition was realized to reveal a series of approximation and detail signals with different resolution. The decomposition and reconstruction algorithm of multi⁃level SVD is given,and the mathematical frameworks of this method is provided. The results show that the multi⁃level SVD can extract the accurate charac⁃teristics of power quality mixed disturbances. The comparative study carried out with single⁃level SVD and wavelet transform demonstrates that multi⁃level SVD has good application prospect in signal processing of power quality mixed disturbances.关键词
电能质量/复合扰动/多级SVD/特征提取Key words
power quality/mixed disturbance/multi-level SVD/feature extraction分类
信息技术与安全科学引用本文复制引用
刘嫣,汤伟..基于多级SVD算法的电能质量复合扰动特征分析[J].现代电子技术,2017,40(4):32-35,4.基金项目
陕西省教育厅专项科研计划项目 （）
