电力系统保护与控制2012，Vol.40Issue(11)：76-81,6.
基于最小二乘法和独立分量分析的间谐波检测算法
Algorithm for inter-harmonic detection based on least square method and ICA
摘要
Abstract
In this paper, a new algorithm based on least square method and FastICA algorithm is proposed to overcome the difficulty in inter-harmonic detection in power system. The algorithm combines FFT and least-squares method to determine the fundamental and harmonic parameters. And it constructs the appropriate virtual observed signals and separates the fundamental, harmonics and some easy detected inter-harmonics with the help of ICA algorithm. Then according to the estimated parameters it can adjust the observed signal matrix and detect remaining small amplitude inter-harmonic signals. The simulation results show that the algorithm can accurately detect the small amplitude inter-harmonics near fundamental and harmonic without prior knowledge and eliminating fundamental and harmonic components in the case of less real-time demand. And this algorithm has high obvious superiority with ICA algorithm.关键词
电力系统/间谐波/快速傅里叶变换/最小二乘法/独立分量分析Key words
power system/ inter-harmonic/ FFT/ least square method/ ICA分类
信息技术与安全科学引用本文复制引用
孟玲玲,孙常栋,韩宝如..基于最小二乘法和独立分量分析的间谐波检测算法[J].电力系统保护与控制,2012,40(11):76-81,6.基金项目
海南省自然科学基金项目(610231) （610231）
