基于小波变换与梯形窗FFT的多谱线插值谐波检测算法

张建鹏; 任亚婧; 杨嘉鹏

doi:10.13568/j.cnki.651094.651316.2019.09.08.0002

您当前的位置：

首页 >

文章列表页 >

基于小波变换与梯形窗FFT的多谱线插值谐波检测算法

工程技术 | 更新时间：2026-01-21

- 基于小波变换与梯形窗FFT的多谱线插值谐波检测算法
- 基于小波变换与梯形窗FFT的多谱线插值谐波检测算法
- 新疆大学学报（自然科学版中英文） 2020年37卷第3期页码：399-406
- 作者机构：
  
  新疆工程学院控制工程学院
- 作者简介：
- 基金信息：
  
  新疆维吾尔自治区高校科研计划自然科学项目（XJEDU2020Y043）
- DOI：10.13568/j.cnki.651094.651316.2019.09.08.0002
  中图分类号： TM935
- 纸质出版：2020
- 稿件说明：
移动端阅览
[1]张建鹏,任亚婧,杨嘉鹏.基于小波变换与梯形窗FFT的多谱线插值谐波检测算法[J].新疆大学学报(自然科学版)(中英文),2020,37(03):399-406+414.
[1]张建鹏,任亚婧,杨嘉鹏.基于小波变换与梯形窗FFT的多谱线插值谐波检测算法[J].新疆大学学报(自然科学版)(中英文),2020,37(03):399-406+414. DOI： 10.13568/j.cnki.651094.651316.2019.09.08.0002.

DOI：10.13568/j.cnki.651094.651316.2019.09.08.0002.

摘要

针对现有谐波检测算法无法检测出高次非稳态谐波与间谐波

且在非同步采样时容易出现频谱泄露的问题

提出一种基于小波变换与梯形窗FFT的多谱线插值谐波检测算法.首先对原始信号进行MALLAT分解

提取出高次非稳态分量与低频谐波

然后对低频分量进行梯形窗FFT的复调制细化法处理

最后通过六谱线差值法推导出谐波参数修正公式

结合MALLAT重构图获取谐波的时域信息.仿真结果表明

该算法能够在负载电流高度畸变的情况下检测出高频分量与间谐波

具有较高的检测精度.

Abstract

Aiming at the problem that the existing harmonic detection algorithms cannot detect the highorder unstable and fractional harmonics

and the spectrum leakage occurs during asynchronous sampling

a multispectrum-line interpolation correction algorithm based on wavelet transform and FFT with trapezoidal window is proposed. First

the original signal is decomposed by MALLAT to extract the high-order unstable and lowfrequency harmonics

and then the low-frequency signals are processed by the multiple modulation zoom analysis of the trapezoid window FFT. Finally

the harmonic parameters are deduced by the six-spectrum-line interpolation.Correct the formula and combine the MALLAT reconstruction map to obtain the time domain information of harmonics. Simulation results show that the algorithm has high accuracy and can detect high-frequency components and fractional harmonics in the case of highly distorted load current.

关键词

Keywords

references

郑珉.电力系统谐波检测与治理研究[J].科技资讯,2017,36(2):50-51.ZHENG M.Research on harmonic detection and control in power system[J].Science&Technology Information,2017,36(2):50-51.

张俨,彭志炜,雷章勇,等.微电网谐波源危害及谐波检测技术[J].电网与清洁能源,2017,33(6):27-37.ZHANG Y,PENG Z W,LEI Z Y,et al.Harmonic source hazard and harmonic detection technology in microgrid[J].Advances of Power System&Hydroelectric Engineering,2017,33(6):27-37.

马宏中,宋树平,鞠平.基于加窗离散傅里叶算法的谐波分析初始相位敏感性研究[J].电力系统自动化,2014,38(12):88-94.MA H Z,SONG S P,JU P.Initial-phase sensitivity study on power harmonic analysis based on windowed discrete fourier transform[J].Automation of Electric Power Systems,2014,38(12):88-94.

WANG Z Y,LI Y Y,ZHANG HAO.Harmonic detection method based on windowed double-spectrum interpolation FFT[C]//International Conference on Robots&Intelligent System,2019,425-427.

刘威葳,丁洪发,段献忠.有源电力滤波器选择性谐波电流控制策略[J].中国电机工程学报,2011,31(27):14-20.LIU Q W,DING H F,DUANX Z.Selective harmonic current control strategy in active power filters[J].Proceedings of the CSEE,2011,31(27):14-20.

Institute of Electrical and Electronics Engineers.IEEE Standard Definitions for the Measurement of Electric Power Quantities Under Sinusoidal,Nonsinusoidal,Balanced,or Unbalanced Conditions[S].IEEE Std 1459-2010 (Revision of IEEE Std 1459-2000),2010:1-50.(下转第414页)

DANIEL B,DOMINIQUE D.Amplitude estimation by a multipoint interpolated DFT approach[J].IEEE Transactions on Instrumentation and Measurement,2009,58(5):1316-1323.

周龙华,付青,余世杰,等.基于小波变换的谐波检测技术[J].电力系统及其自动化学报,2010,22(1):80-85.ZHOU L H,FU Q,YU S J,et al.Harmonic detection based on wavelet transform[J].Proceeding of the CSU-EPSA,2010,22(1):80-85.

王继东,杨官庆,文晶.基于改进复调制细化法和加窗插值快速傅里叶变换的电力系统谐波分析[J].电网技术,2012,36(2):64-69.WANG J D,YANG G Q,WEN J.Power system harmonic analysis method based on modified multiple modulation zoom analysis and windowed interpolation FFT[J].Power System Technology,2012,36(2):64-69.

温和,滕召胜,王永,等.改进加窗插值FFT动态谐波分析算法及应用[J].电工技术学报,2012,27(12):270-271.WEN H,TENG Z Y,WANG Y,et al.Improved windowed interpolation FFT algorithm and application for power harmonic analysis[J].Transactions of China Electro-technical Society,2012,27(12):270-271.

HE W,ZHAO S T,YONG W,et al.Simple interpolated FFT algorithm based on minimize sidelobe windows for power-harmonic analysis[J].IEEE Translations on Power Electronics,2001,26(9):2570-2579.

浏览量

204

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

暂无数据