A Modified Impact-increment-based State Enumeration Method and Its Application in Power Distribution Systems  

作　　者：Lukun Ge Kai Hou Hongmin Meng Hongjie Jia Ziheng Dong 

机构地区：[1]Key Laboratory of Smart Grid of Ministry of Education,Tianjin University,Tianjin 300072,China [2]State Grid Information&Telecommunication Group Co.,Ltd.,Beijing 102211,China

出　　处：《Journal of Modern Power Systems and Clean Energy》2023年第6期1912-1922,共11页现代电力系统与清洁能源学报（英文）

基　　金：supported in part by the National Natural Science Foundation of China (No.52077150);the National Key Research and Development Program of China (No.2019YFE0118000)。

摘　　要：Reliable planning and operation of power distribution systems are of great significance. In this paper, the impactincrement based state enumeration(IIBSE) method is modified to adapt to the features of distribution systems. With the proposed method, the expectation, probabilistic, and duration reliability indices can be accurately obtained with a lower enumerated order of contingency states. In addition, the time-consuming optimal power flow(OPF) calculation can be replaced by a simple matrix operation for both independent and radial series failure states. Therefore, the accuracy and efficiency of the assessment process are improved comprehensively. The case of RBTS bus 6 system and IEEE 123 node test feeder system are utilized to test the performance of the modified IIBSE. The results show the superiority of the proposed method over Monte Carlo(MC) sampling and state enumeration(SE) methods in distribution systems.

关 键 词：Power distribution system reliability assessment impact-increment state enumeration 

分 类 号：TM73[电气工程—电力系统及自动化]