基于多CPU与相位差校正的高精度谐波功率测量

ZENG Bo; TENG Zhaosheng

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基于多CPU与相位差校正的高精度谐波功率测量

更新时间：2025-08-13

- 基于多CPU与相位差校正的高精度谐波功率测量
- Automation of Electric Power Systems Vol. 33, Issue 11, Pages: 89-93(2009)
- 作者机构：
  
  湖南大学电气与信息工程学院,湖南省,长沙市,410082
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- Published：2009
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ZENG Bo, TENG Zhaosheng. [J]. Automation of electric power systems, 2009, 33(11): 89-93.
DOI：

ZENG Bo, TENG Zhaosheng. [J]. Automation of electric power systems, 2009, 33(11): 89-93. DOI：

摘要

快速傅里叶变换（FFT）应用于谐波分析与测量时容易因频谱泄漏影响测量准确度。研究Rife-Vincent窗的旁瓣特性，提出了一种基于Rife-Vincent窗频谱相位差校正的谐波分析与谐波功率测量方法。在此基础上设计了一种新型三相谐波电能表，给出了基于TDK6513H+ADSP-BF533+M30624FGPFP的多CPU电力谐波精确测量解决方案。实验结果表明，应用所提出的谐波分析算法时，仪器的性能优于GB/T 17833—1999及GB/T 14549—1993的要求，基波有功功率测量误差小于0.2%，谐波电压测量相对误差小于1%，谐波电流测量相对误差小于3%，谐波相位测量误差绝对值小于2°，适合于高精度谐波功率测量。

Abstract

When using the fast Fourier transform（FFT） for harmonic analysis and measurement， the measuring accuracy is apt to get affected owing to the spectral leakage The side-lobe characteristics of Rife-Vincent window are studied and a harmonic analysis and harmonic power measurement algorithm based on Rife-Vincent window phase difference correction is proposed. A new-type three-phase harmonic ammeter is designed based on a multi-CPU structure of TDK6513H+ADSP-BF533+M30624FGPFP， which can accurately measure the electrical harmonic power. Experimental metering outcome indicates that the instrument performance based on the proposed algorithm conforms with the requirements mentioned in GB/T 17833—1999 and GB/T 14549—1993， the errors of the fundamental active power measurement are less than 0.2%， and for the harmonic measurement， errors of amplitudes of harmonic voltage and current in each order are less than 1%， 3%， respectively， the errors of phase difference are less than 2°. The ammeter is suitable for high precision harmonic power measurement.

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