基于三阶Hanning卷积窗的谐波检测方法研究  

Harmonic Detection Method based on 3-order Haining Convolution Window

作　　者：韩静[1] 付立思[1] 徐明虎[1] 

机构地区：[1]沈阳农业大学信息与电气工程学院,沈阳110161

出　　处：《农业科技与装备》2012年第6期45-47,共3页Agricultural Science & Technology and Equipment

摘　　要：为减少谐波分析结果的误差,提出一种基于三阶Hanning卷积窗的谐波分析方法。在用公式详细探讨加窗插值算法原理的基础上,利用Matlab仿真试验验证算法的分析精度。MATLAB仿真结果表明,三阶Hanning卷积窗具有优良的频谱抑制性能,可进行电力谐波的高精度检测。In order to reduce errors in harmonic analysis, a harmonic analysis method based on 3-order haining convolution window is put forward. The interpolating windowed FFT algorithm can effectively reduce spectral leakage and fence effect on harmonic analysis accuracy. This author analyzes the interpolation algorithm in detail. The Matlab simulation results show that 3-order Hanning convolution window has excellent spectrum inhibition performance, suitable for power harmonic detection with high precision, and with the existing windowed interpolation algorithm, the precision is improved obviously.

关 键 词：谐波检测 泄露效应 快速傅里叶变换 三阶Hanning卷积窗 

分 类 号：TM93[电气工程—电力电子与电力传动]