摘要为减少加窗插值FFT 谐波分析算法中的频谱泄漏和栅栏效应, 本文分析了旁瓣最低与最速
下降窗的频谱特性, 提出了基于4 项旁瓣最低与最速下降窗的插值FFT 谐波分析算法 …

Harmonics and interharmonics adversely affect power grids. The fast Fourier transform (FFT)
algorithm is one of the most commonly used methods for harmonic analysis. However, in …

Harmonic problems seriously restrict the development of power electronics technology. This
condition may provoke multiple results, as follows:(i) reduced efficiency of electric energy …

Waveforms distortion is a pressing concern in Smart Grids where a massive presence of
new technologies in distributed energy resources and in advanced smart metering systems …

摘要为了减少快速傅里叶变换在非同步采样下产生的频谱泄露影响, 提高谐波分析的准确度,
提出了一种高精度多谱线插值的频谱校正算法. 通过分析加窗信号离散频点附近谱线分布的多种 …

A novel method of de-noise and harmonics detection is presented. Firstly, based on
periodicity analysis and signals which have been detected, one minimum period signal with …

摘要快速傅里叶变换(FFT) 是目前谐波分析中常用的分析算法, 加窗插值FFT
算法能够改善频谱泄漏和栅栏效应, 但是FFT 对采样数据序列有一定的长度要求. 以基2 为例 …

Harmonic is one of the most prominent power quality problems in the power system.
Accurate estimation of harmonic parameters is an important reference for electric utilities …

The core of harmonic detection is the recognition and extraction of each order harmonic in
the signal. The current detection methods are seriously affected by the fence effect and …

摘要加窗FFT 是目前应用最为广泛的谐波分析方法. 但非同步采样时, 离散频谱校正中存在计算
准确度与实时性的矛盾. 论文结合三角自卷积窗的频谱特性, 建立了基于最小二乘法的三角自卷 …