基于关联矩阵化简的电网拓扑辨识新方法
A Novel Method for Power Grid Topology Identification Based on Incidence Matrix Simplification
杨冬锋 1周苏荃 2刘隽 3刘晓军4
作者信息
- 1. 哈尔滨工业大学电气工程及自动化学院,哈尔滨150001;东北电力大学电气工程学院,吉林132012
- 2. 哈尔滨工业大学电气工程及自动化学院,哈尔滨150001
- 3. 国网上海市电力公司,上海200437
- 4. 东北电力大学电气工程学院,吉林132012
- 折叠
摘要
电力网络拓扑分析是电力系统各种分析计算的基础.针对传统矩阵法计算量大,计算速度慢的缺点,提出一种基于矩阵化简的电网拓扑新方法.该方法用节点一支路关联矩阵表述电网的拓扑结构,根据布尔向量的“与”和“或”运算规则以及节点合并原理,对关联矩阵进行修正和化简,以实现电网的拓扑辨识;将母线分析与系统分析的数据及算法进行统一化处理,可通过局部拓扑实现网络状态变化后的快速动态拓扑.通过算例分析,以及该方法在某省实际电网拓扑分析中的应用,验证了所提方法的特点和有效性.与传统矩阵法相比,该方法不需进行复杂的矩阵运算,算法简单,计算量极小,适合于复杂电网的快速拓扑分析.
Abstract
Power grid topology identification is the basis for a variety of analytical calculations.This paper proposes a novel method for power grid topology identification based on incidence matrix simplification with a view to solving the low efficiency problem of the traditional matrix method.This method uses the node-branch incidence matrix to present the power grid topology structure.Based on Boolean vectors " and" and " or" algorithm and principle of node merging,the incidence matrix is modified and simplified in order to realize the power grid topology identification.The data and algorithm of bus analysis and system analysis are unified,and rapid dynamic topology analysis after network state change is achieved by local topology.The case study and application in some province power gird topology have verified the feature and validity of this method.Compared with the traditional matrix method,this method does not require complex matrix calculation,suitable for rapid topology analysis of complex power grid.
关键词
电网拓扑辨识/关联矩阵/修正关联矩阵/节点合并/矩阵化简Key words
power grid topology identification/incidence matrix/rectified incidence matrix/nodes merging/matrix simplification引用本文复制引用
出版年
2014
NETL
NSTL
维普
万方数据