基于轨迹特征根的快速事故筛选方法

LU Dandan; YANG Feiyan; WANG Jianquan

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基于轨迹特征根的快速事故筛选方法

更新时间：2025-08-13

- 基于轨迹特征根的快速事故筛选方法
- Automation of Electric Power Systems Vol. 37, Issue 5, Pages: 38-43(2013)
- 作者机构：
  
  1. 浙江大学电气工程学院,浙江省,杭州市,310027
  2. 浙江舟山电力局,浙江省,舟山市,316000
- 作者简介：
- 基金信息：
- DOI：
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- Published：2013
- 稿件说明：
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LU Dandan, YANG Feiyan, WANG Jianquan. [J]. Automation of electric power systems, 2013, 37(5): 38-43.
DOI：

LU Dandan, YANG Feiyan, WANG Jianquan. [J]. Automation of electric power systems, 2013, 37(5): 38-43. DOI：

摘要

在轨迹特征根思路的启发下，提出了一种用于电力系统动态安全分析中快速滤除无害事故的方法。在时域仿真计算的基础上，选取故障消失一段时间后的某个时间断面，在非平衡点处将系统线性化后，从时域仿真的数据计算得到状态转移矩阵，通过判断状态转移矩阵特征值实部是否大于零的方法，筛选出无害预想事故。最后，通过新英格兰系统、145节点系统、四川系统3个算例表明了所述方法的有效性和快速性。

Abstract

A method of contingency screening for filtering secure predefined contingencies is proposed.It can be used for online dynamic security assessment.The approach is based on the time domain simulation.Based on the theoretical derivation of the system linearization at the non-equilibrium point after disturbances，the sate matrix of the system and the coefficient eigenvalues can be calculated.The secure contingencies can be identified by analyzing the eigenvalues.Three simulations on different systems testify the validation of the proposed approach.

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