摘要
为快速实施过负荷连锁跳闸的控制策略,基于图论提出了潮流转移路径的快速搜索方法。该方法首先划分潮流转移区域,将潮流转移的搜索范围限制在局部区域内,确定过载线路的潮流转移路径集。线路发生过载时,根据支路切除前后的电网拓扑信息和潮流转移路径的拓扑结构特征筛选潮流转移路径集中元素,排除误入选路径。算例结果验证了该方法的有效性。
To implement the control strategy for cascading tansmission line tripouts caused by overload, based on basic circuit theory and concept of the shortest path in graph theory, the mathematical description of key power transferring paths is presented, and an approach of quickly searching power transferring paths is proposed. The proposed apporach firstly divides the power transferring areas to restrict the power flow tranferring inside local area, thus the power flow transferring path set of overloaded transmission lines is decided. When transmission line is overloaded, according to both information of power network topology before and after the swithcing off of branches and the feaures of topological structure of power transferring paths, the concentrated elements of power transferring paths are sorted and the mistakenly chosen paths can be removed. Calculation results of New England 39-bus sysetm and IEEE llS-bus system verify the effectivity of the proposed approach.
出处
《电网技术》
EI
CSCD
北大核心
2012年第4期84-88,共5页
Power System Technology
基金
国家自然科学基金项目(50920105705
50837002
50607005)
高等学校博士学科点专项科研基金资助项目(B08013)
国家重点基础研究发展计划项目(973项目)(2009CB219704)~~
关键词
潮流转移
路径
搜索
图论
电力系统
power transferring
path
searching
graph theory
power system
