Analysis on High Precision Power Harmonic Based on Combinatorial Cosine Window Weighting Method

CHEN Yanpu; YANG Lei; ZHANG Jieqiu

doi:10.13296/j.1001-1609.hva.2021.08.018

您当前的位置：

首页 >

文章列表页 >

Analysis on High Precision Power Harmonic Based on Combinatorial Cosine Window Weighting Method

更新时间：2025-04-26

- Analysis on High Precision Power Harmonic Based on Combinatorial Cosine Window Weighting Method
- High VoltageApparatus Vol. 57, Issue 8, Pages: 127-135(2021)
- 作者机构：
  
  1. 西京学院信息工程学院
  2. 空军工程大学基础部
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2021.08.018
  CLC： TM935
- Published：2021
- 稿件说明：
移动端阅览
CHEN Yanpu, YANG Lei, ZHANG Jieqiu. Analysis on High Precision Power Harmonic Based on Combinatorial Cosine Window Weighting Method[J]. High voltageapparatus, 2021, 57(8): 127-135.
DOI：

CHEN Yanpu, YANG Lei, ZHANG Jieqiu. Analysis on High Precision Power Harmonic Based on Combinatorial Cosine Window Weighting Method[J]. High voltageapparatus, 2021, 57(8): 127-135. DOI： 10.13296/j.1001-1609.hva.2021.08.018.

摘要

针对电力谐波加窗分析中的频谱泄漏和栅栏效应

利用电力信号在频域中的频谱只集中出现在谐波频点处的特点

以窗谱在主瓣中央和谐波频点的平坦性作为约束条件研究可同时有效抑制频谱泄漏和栅栏效应的加窗函数。提出了进行电力谐波分析时组合余弦窗须满足的基本条件。导出了窗谱的各阶导数

利用导数等于0作为主瓣中央和谐波频点的平坦性表示建立了组合余弦窗的参数方程组。对窗宽为整数个额定周期的新型窗函数的频谱进行了数值模拟

结果表明

新型窗函数在抑制频谱泄漏和抵抗栅栏效应方面性能优异

无需借助谱线插值即可实现高精度电力谐波分析。

Abstract

In view of the spectrum leakage and picket fence effect in windowing analysis of power harmonics

the windowing function of effectively suppressing spectrum leakage and picket fence effect simultaneously can be studied by using the feature that the spectrum of power signal in the frequency domain only concentrates on the harmonic frequency point and taking the flatness of the window spectrum in the center of main lobe and harmonic frequency points as the constraint.The basic condition which the combinatorial cosine window must meet

in case of power harmonic analysis

is proposed.The derivative of the window spectrum is derived.The parametric equation set of the combinatorial cosine window is set up by using the derivative

which is equal to 0

as the flatness representation of the main lobe center and the harmonic frequency points.The numerical simulation for new window function with window width as integer rated period is performed.The result shows that the new window function has excellent performance in the field of suppressing spectrum leakage and resisting picket fence effect and can achieve high-precision power harmonic analysis without spectral interpolation.

关键词

Keywords

references

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Analysis of Harmonic Characteristics of Conductor Spike Defect Loss Current in 35 kV XLPE Cable

Harmonic Analysis and Restrain of Arc Suppression Coil Based on Controllable Reactor of Transformer Type

Pseudo-resonant Phenomenon of Resonant Inverter for Power Supply of Dielectric Barrier Discharge

Theoretical and Simulation Study on High Accuracy FFT Algorithm for tanδ Monitoring

Study on Numerical Calculation of Magnetically Controlled Shunt Reactor

Related Author

ZHAO Yan

LI Wei

QI Bo

HU Depeng

TANG Zhiguo

LI Leying

ZHENG Shusheng

YAO Weiwei

Related Institution

State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University

China Three Gorges Corporation

School of Electrical Engineering, Xi’an Jiaotong University

Graduate School of Chinese Academy of Sciences

Institute of Electrical Engineering for Chinese Academy of Sciences

⁰