CAJ | 학술논문

针对电力系统对网络拓扑分析实时性与准确性的需求，提出一种基于关联矩阵标记法和回路矩阵的网络拓扑分析新方法。在系统正常运行情况下，利用关联矩阵标记法，判断图的连通性，同时标记网络的树支与连支，完成电网静态电气岛分析；当网络结构发生变化后，借助回路矩阵，判断变化支路的属性。在此基础上，利用破圈法和半径搜索法，修改局部网络拓扑及更新回路矩阵。IEEE 39节点和IEEE 118节点系统验证结果均表明该方法计算量小，更新速度快，可适用于多种网络变结构的情况。
침대전력계통대망락탁복분석실시성여준학성적수구，제출일충기우관련구진표기법화회로구진적망락탁복분석신방법。재계통정상운행정황하，이용관련구진표기법，판단도적련통성，동시표기망락적수지여련지，완성전망정태전기도분석；당망락결구발생변화후，차조회로구진，판단변화지로적속성。재차기출상，이용파권법화반경수색법，수개국부망락탁복급경신회로구진。IEEE 39절점화IEEE 118절점계통험증결과균표명해방법계산량소，경신속도쾌，가괄용우다충망락변결구적정황。
In view of the demand on instantaneity and accuracy in power network topology analysis,this paper puts forward a new method of network topological analysis based on the incidence matrix notation method and the loop matrix.Under normal circumstances,the initial distribution of electrical islands is determined by using the incidence matrix notation method. Meanwhile,trees and link lines are marked.When the network topology is changed,the attributes of the changed branch are j udged through the loop matrix.Then,part of the network topology is modified and the loop matrix is updated using the broken circle method and the radius search method.Finally,results of the IEEE 3 9-bus and IEEE 1 1 8-bus systems have both verified that the proposed method is of low computational complexity and is capable of being applied to variable network structures.