Synchronous Phasor Measurement Algorithm Based on Recursive DFT

XU Jian-yuan1; WANG Liang1; LIN Xin1; TENG Yun1

doi:10.13296/j.1001-1609.hva.2011.11.023

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Synchronous Phasor Measurement Algorithm Based on Recursive DFT

更新时间：2025-04-26

- Synchronous Phasor Measurement Algorithm Based on Recursive DFT
- High VoltageApparatus Vol. 47, Issue 11, Pages: 40-44(2011)
- 作者机构：
  
  1. 沈阳工业大学电气工程学院
  2. 辽宁省电网安全运行与监测重点实验室
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2011.11.023
  CLC： TM930
- Published：2011
- 稿件说明：
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[1]徐建源,王亮,林莘,腾云.基于递推DFT同步相量测量算法的研究[J].高压电器,2011,47(11):40-44.

XU Jian-yuan1, WANG Liang1, LIN Xin1, et al. Synchronous Phasor Measurement Algorithm Based on Recursive DFT[J]. High voltageapparatus, 2011, 47(11): 40-44.
[1]徐建源,王亮,林莘,腾云.基于递推DFT同步相量测量算法的研究[J].高压电器,2011,47(11):40-44. DOI： 10.13296/j.1001-1609.hva.2011.11.023.

XU Jian-yuan1, WANG Liang1, LIN Xin1, et al. Synchronous Phasor Measurement Algorithm Based on Recursive DFT[J]. High voltageapparatus, 2011, 47(11): 40-44. DOI： 10.13296/j.1001-1609.hva.2011.11.023.

摘要

为了减小测量误差

设计一种计算量小、采样精度高、可同时测量相角、频率和幅值的方法

笔者分析了同步相量的主要测量算法和现有同步相量测量方法。由传统的DFT算法引入计算量少的递推傅里叶算法

通过变换得到一种改进型递推离散傅里叶算法

并给出频率测量的方法

对同步向量测量进行误差分析

并提出改进措施和方案。实验由高精度和可调节的信号源作为相量采集装置的输入量

实验结果表明

基于递推DFT同步相量测量算法正确。

Abstract

To develop a more efficient and more precise method for simultaneously measuring phasor

frequency and amplitude

the main measurement algorithm of synchronous phasor is analyzed

and the existing measurement method is introduced.The recursive Fourier algorithm

whose calculation quantity is less

is introduced to the traditional DFT algorithm to form an improved discrete Fourier algorithm.A kind of frequency measurement method is proposed.The error of synchronous phasor measurement is analyzed

and improvement schemes are also raised.Experiment demonstrates the correctness of the proposed synchronous phasor measurement algorithm based on recursive DFT.

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