基于潮流游走介数的电网脆弱环节辨识方法研究  

Identification Methods of Fragile Parts in Power Grid Based on Flow Walking Betweenness

作　　者：王勋[1] 李林哲[1] 肖永乐 康嘉斌 

机构地区：[1]华东交通大学电气与电子工程学院,江西南昌330013

出　　处：《华东交通大学学报》2015年第6期100-105,共6页Journal of East China Jiaotong University

基　　金：国家自然科学基金资助项目(51267004);江西省科技支撑计划项目(20144BBE50008);南昌市科技局资助项目(2013HZLG013)

摘　　要：大停电事故的发生,除了人为误操作等因素以外,电网中自身存在的不稳定因素才是事故发生的根源。对于电网中脆弱元件的识别,传统的方法往往仅偏重于分析网络结构脆弱性或者状态脆弱性中的某个方面,缺乏一种全局的观念。因此,本文基于随机游走算法和潮流跟踪理论,综合考虑电网的拓扑结构和运行状态,通过计算式来分析电网中发电机因子和负荷因子对潮流传输的影响,从中研究了一种通过潮流游走介数来辨识电力系统中脆弱环节的方法。通过仿真分析,验证了方法的可行性和有效性。Besides human error and other factors, the unstable factor in the power grid itself is the root cause of blackout accidents. For the identification of vulnerable components in power system, the traditional methods often only focus on analyzing network structure＇s vulnerability or state＇s vulnerability, which is in lack of a global concept. Therefore, based on the random walk algorithm and trend tracking theory, considering the topology and operation state of grid, this paper studied a method using the flow walking betweenness to identify fragile parts of the grid and analyzed the influence of grid generator factor and load factor on the current transmission through the calculating formula. The simulation analysis validated the feasibility and effectiveness of this method.

关 键 词：脆弱元件 拓扑结构 运行状态 潮流游走介数 

分 类 号：TM712[电气工程—电力系统及自动化]