An energy margin sensitivity calculation based on trajectory sensitivity

YU Xu-yang1; WANG Cheng-shan2

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An energy margin sensitivity calculation based on trajectory sensitivity

更新时间：2025-11-18

- An energy margin sensitivity calculation based on trajectory sensitivity
- Issue 3, Pages: 1-4+7(2005)
- 作者机构：
  
  1.   湖南省电力试验研究院
  2.   天津大学湖南长沙410007
  3.   天津300072
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM744
- Published：2005
- 稿件说明：
移动端阅览
[1]余旭阳,王成山.基于轨迹灵敏度的能量裕度灵敏度解析算法[J].湖南电力,2005(03):1-4+7.

YU Xu-yang1, WANG Cheng-shan2. An energy margin sensitivity calculation based on trajectory sensitivity[J]. 2005, (3): 1-4+7.
[1]余旭阳,王成山.基于轨迹灵敏度的能量裕度灵敏度解析算法[J].湖南电力,2005(03):1-4+7. DOI：

YU Xu-yang1, WANG Cheng-shan2. An energy margin sensitivity calculation based on trajectory sensitivity[J]. 2005, (3): 1-4+7. DOI：

摘要

电力系统参数的变化对系统稳定性有很大的影响

如何确定这些参数的变化在给定故障情况下对系统稳定性的影响、改变哪些参数对系统稳定性影响更大具有重要意义。提出了一种系统能量裕度灵敏度的解析算法

从能量裕度的数学表达式出发

利用能量裕度的全微分公式进行灵敏度计算。该方法计算比较灵活

考虑了发电机动态过程对轨迹灵敏度的影响

计算能量裕度对系统参数的灵敏度。该算法在IEEE50机系统中进行了测试。

Abstract

Power system parameter variations have great influences on system stability and it is important to know which parameter variations are more decidable to system stability. An energy margin sensitivity calculation of power system is presented in this paper. The calculation method

based on mathematics expression of energy margin

uses full differential equation to calculate the sensitivity of energy margin

considers the influence of generator dynamic motion on trajectory sensitivity

and calculates the sensitivity of energy margin on system parameters. This method has been tested in IEEE 50-machine system and achieves good result.

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