张建鹏;任亚婧;杨嘉鹏;

• 1:新疆工程学院控制工程学院

摘要(Abstract)：

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.

关键词(KeyWords)： 间谐波;小波变换;梯型窗函数;多谱线插值

Abstract:

Keywords:

基金项目(Foundation): 新疆维吾尔自治区高校科研计划自然科学项目（XJEDU2020Y043）

作者(Authors): 张建鹏;任亚婧;杨嘉鹏;

DOI: 10.13568/j.cnki.651094.651316.2019.09.08.0002

参考文献(References)：

• [1]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.
• [2]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.
• [3]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.
• [4]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.
• [5]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.
• [6]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)
• [7]DANIEL B,DOMINIQUE D.Amplitude estimation by a multipoint interpolated DFT approach[J].IEEE Transactions on Instrumentation and Measurement,2009,58(5):1316-1323.
• [8]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.
• [9]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.
• [10]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.
• [11]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.