电力系统及其自动化学报2011，Vol.23Issue(3)：135-138,4.
RELAX算法在间谐波检测中的应用
Application of RELAX Algorithm on Interharmonic Detection
季宇 1孙云莲 1李晶2
作者信息
- 1. 武汉大学电气工程学院,武汉430072
- 2. 五环化工有限公司,武汉430072
- 折叠
摘要
Abstract
Interharmonic is the special harmonic element which is not an integer multiple of the fundamental.Due to the asynchronous sampling problem, serious leakage error may arise with the measurement method for normal harmonics. In this paper, a new approach for sinusoidal parameter estimation based on RELAX(Relax ation algorithm)is presented. To get the correct result, the proposed method depends on two additional steps:the Hilbert Transform of the samples and the phase revise. The method can make the faster measurement in comparison with others since the Fast Fourier Transform(FFT) takes up the main calculation time of the RELAX. Finally, the simulation results have verified the effectiveness and practicability of the algorithm.关键词
间谐波/非同步采样/RELAX算法/希尔伯特变换/快速傅里叶变换Key words
interharmonic/ asynchronous sampling/ relaxation algorithm/ Hilbert transform/ fast Fourier transform分类
信息技术与安全科学引用本文复制引用
季宇,孙云莲,李晶..RELAX算法在间谐波检测中的应用[J].电力系统及其自动化学报,2011,23(3):135-138,4.
