基于储能型柔性互联装置的配电网孤岛恢复方法  

Island fault recovery method of distribution network based on flexible interconnection device with energy storage

作　　者：胡益菲 钱峰 李海龙 刘爽 张奇 HU Yifei;QIAN Feng;LI Hailong;LIU Shuang;ZHANG Qi(Binhai Power Supply Branch of State Grid Tianjin Electric Power Company,Tianjin 300457,China;Key Laboratory of Smart Grid of Ministry of Education,Tianjin University,Tianjin 300072,China)

机构地区：[1]国网天津市电力公司滨海供电分公司,天津300457 [2]天津大学智能电网教育部重点实验室,天津300072

出　　处：《供用电》2024年第2期21-27,共7页Distribution & Utilization

基　　金：国网天津市电力公司科技项目“面向保供电需求的低压直流柔性互联台区智能化调控技术”(滨海-研发-2023-02)。

摘　　要：为有效发挥储能型柔性软开关(soft open points with energy storage,E-SOP)灵活的故障恢复能力,提出了基于E-SOP的柔性互联配电网孤岛划分和故障恢复方法。首先,构建了双端变压器故障后,基于E-SOP的柔性互联配电网故障恢复模型;其次,以负荷恢复容量最大为目标,综合考虑功率平衡约束、E-SOP容量约束和电压约束,提出了基于拓扑搜索的柔性互联配电网孤岛快速划分和故障恢复方法;最后,对所提柔性互联配电网孤岛划分和故障恢复方法进行仿真分析。仿真结果表明所提柔性互联配电网孤岛划分方法计算速度快、划分效果好,能有效满足快速供电恢复的要求。To effectively utilize the flexible fault recovery capability of soft open points with energy storage(E-SOP),an island division and fault recovery method for the flexible distribution network with the E-SOP is proposed.Firstly,a fault recovery model for the flexible distributio n network based with the E-SOP is established after the two terminal transformer fault;Secondly,with the goal of maximizing load recovery capacity,a topology search based fast island division and fault recovery method is presented considering power balance constraints,E-SOP capacity constraints,and voltage constraints.Finally,a simulation analysis is carried out on the proposed flexible interconnection distribution network island division and fault recovery method.The simulation results showed that the proposed islanding and fault recovery method for the flexible distribution network has the advantages of fast calculation speed and good partitioning effect,which can effectively meet the requirements of fast power restoration.

关 键 词：柔性互联 供电恢复 储能型柔性软开关 孤岛划分 拓扑搜索 

分 类 号：TM71[电气工程—电力系统及自动化]