基于WAMS量测数据的低频振荡机理分析

YANG Dongjun; DING Jianyong; ZHOU Hong; DONG Mingqi

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基于WAMS量测数据的低频振荡机理分析

更新时间：2025-08-13

- 基于WAMS量测数据的低频振荡机理分析
- Automation of Electric Power Systems Vol. 33, Issue 23, Pages: 24-28(2009)
- 作者机构：
  
  1. 武汉大学电气工程学院,湖北省,武汉市,430071
  2. 华中电网有限公司技术中心,湖北省,武汉市,430077
- 作者简介：
- 基金信息：
- DOI：
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- Published：2009
- 稿件说明：
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YANG Dongjun, DING Jianyong, ZHOU Hong, et al. [J]. Automation of electric power systems, 2009, 33(23): 24-28.
DOI：

YANG Dongjun, DING Jianyong, ZHOU Hong, et al. [J]. Automation of electric power systems, 2009, 33(23): 24-28. DOI：

摘要

正确认识电网低频振荡的产生机理，对预防和控制低频振荡的产生和传播具有重要意义。针对华中电网广域测量系统（WAMS）记录的一次区域间低频振荡事件，采用Prony方法分析振荡各阶段特征，并结合电网历史小干扰事件频率分布统计情况，应用强迫振荡理论说明振荡的产生机理。分析结果表明，采用强迫振荡理论能够对本次振荡各阶段的现象作出合理的解释，迅速找到并切除扰动源是抑制此类低频振荡的有效措施。

Abstract

A correct understanding of the mechanism of low frequency oscillation in the power grid is of great significance to the prevention and control of the production and dissemination of low-frequency oscillation. Based on an interregional low-frequency oscillation event in the Central China power grid recorded by the wide area measurement system（WAMS）， the Prony method is used to analyze the characteristics of various stages of oscillation. Combining with the small interfering frequency distribution statistical analysis， the forced oscillation theory is used to explain the oscillation mechanism. The results show that forced oscillation theory is able to reasonably explain the phenomenon of this oscillation at all stages， and quickly locating and removing the disturbance source is an effective measure to suppress such low-frequency oscillations.

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