沈阳大学学报2011，Vol.23Issue(6)：108-110,114,4.
基于加窗插值FFT的电力谐波检测算法研究
FFT Algorithm Based on Window Function and Interpolation for Electric Harmonic Measurement
于海雁 1陈泽旭1
作者信息
- 1. 沈阳工业大学信息科学与工程学院,辽宁沈阳110870
- 折叠
摘要
Abstract
Through the analysis and comparison of harmonic measurement methods in common use,according to the characteristics of electric harmonic signal,the combination of Blackman window function and the algorithm of double peak of spectral lines interpolation are carried out.Based on this algorithm,the modified formula of frequency and amplitude are obtained by using the polynomial approximation method,which can further reduce leakage and noise interference,and improve the calculation accuracy of the frequency and amplitude.The results of MATLAB simulation have verified the exactness and effectiveness of the algorithm.关键词
电力系统/谐波检测/快速傅里叶变换（FFT）/窗函数/双峰插值Key words
power system/harmonic measurement/fast fourier transform（FFT）/window function/double peak of spectral lines interpolation分类
信息技术与安全科学引用本文复制引用
于海雁,陈泽旭..基于加窗插值FFT的电力谐波检测算法研究[J].沈阳大学学报,2011,23(6):108-110,114,4.
