基于模式综合分析法的联络线功率振荡抑制措施

YANG Huimin; WEN Jinyu

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基于模式综合分析法的联络线功率振荡抑制措施

更新时间：2025-08-13

- 基于模式综合分析法的联络线功率振荡抑制措施
- Automation of Electric Power Systems Vol. 33, Issue 9, Pages: 91-95(2009)
- 作者机构：
  
  华中科技大学电力安全与高效湖北省重点实验室,湖北省,武汉市,430074
- 作者简介：
- 基金信息：
- DOI：
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- Published：2009
- 稿件说明：
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YANG Huimin, WEN Jinyu. [J]. Automation of electric power systems, 2009, 33(9): 91-95.
DOI：

YANG Huimin, WEN Jinyu. [J]. Automation of electric power systems, 2009, 33(9): 91-95. DOI：

摘要

目前，通过合理地配置电力系统稳定器（PSS）来抑制联络线功率振荡仍然是最经济可行的方法，这需要确定与联络线振荡模式强相关的机组并对相应PSS的参数进行优化，为此，提出了模式综合分析法。该方法通过时域仿真将Prony分析法与特征值法相结合，不但能够分析联络线功率振荡的主导振荡模式及其基本信息，还能给出该振荡模式的模态信息，从而为PSS安装地点的选择提供了依据;同时，引入两点拟合法优化PSS的参数，使其在较宽频带范围内提供超前相位，从而能够抑制多个振荡模式。对某实际电网的仿真结果验证了该方法的有效性。

Abstract

At present， PSS is still the most economical and feasible method to damp the power oscillation. Decision of strongcorrelation generators to the oscillation modes and parameter optimization of PSS are two important factors. A mode-synthesisanalysis method is proposed for large amplitude power oscillation on tie-line when disturbance occurs in the interconnectedpower grids. This method combines Prony algorithm and eigenvalue analysis method by time domain simulation. Theinformation of tie-line oscillation mode such as frequency and damping can be obtained through this method. Thus， installationplaces of PSS are found. After parameter optimization by using two points fitting method， PSS can offer leading phase inbroadband and damp more oscillation modes. The simulation results of an actual power grid show the effectiveness of theproposed method.

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