Security Region: An Intelligent Approach to Transportation Networks  

作　　者：Jun Xiao Menghao Long Guoqiang Zu Qisi Lin 

机构地区：[1]Key Laboratory of Smart Grid of Ministry of Education,Tianjin University,Tianjin 300072,China [2]State Grid Tianjin Chengdong Electric Power Supply Company,Tianjin 300250,Chin [3]State Grid Tianjin Electric Power Research Institute,Tianjin 300384,China.

出　　处：《CSEE Journal of Power and Energy Systems》2023年第4期1532-1539,共8页中国电机工程学会电力与能源系统学报（英文）

基　　金：supported by National Key Research and Development Program of China(2016YFB0900100);National Natural Science Foundation of China(51877144);China Postdoctoral Science(2020M6700668).

摘　　要：This paper proposes a security region of transporta-tion networks,which is defined as the set of flow states(operating points)satisfying the N-1 security in transportation networks.The boundary of the set is closed,inside all the operating points are N-1 secure;oppositely,outside all the operating points are insecure.First,N-1 security of the transportation networks is defined,which means that when a road is blocked,vehicles on other roads within the networks can also reach their destination through different paths without being trapped on the road.Then,the security region of transportation networks is modeled.The algorithm of a boundary calculation is studied and the boundary equations of security distances are proposed.Finally,the proposed security of the transportation networks is presented in different examples.This paper demonstrates the following:1)the security region can be accurately predicted by the simulation of N-1;2)the boundary distance can show the necessary degree of security;3)security can be improved by a preventive control scheme.The simulation on TransCAD is used to verify the correctness of the results.Index Terms-Boundary distance,evolution,security region,transportation network,TransCAD.

关 键 词：Boundary distance evolution security region transportation network TransCAD. 

分 类 号：TM727[电气工程—电力系统及自动化]