主动配电网故障恢复的重构与孤岛划分统一模型  

Research on Active Distribution Network Fault Recovery Strategy Based on Unified Model Considering Reconstruction and Island Partition

作　　者：汤一达 吴志[1,2] 顾伟[1] 余鹏 杜进桥 罗欣儿 TANG Yida;WU Zhi;GU Wei;YU Peng;DU Jinqiao;LUO Xiner(School of Electrical Engineering,Southeast University,Nanjing 210096,Jiangsu Province,China;Jiangsu Provincial Key Laboratory of Smart Grid Technology&Equipment(Southeast University),Nanjing 210096,Jiangsu Province,China;Shenzhen Power Supply Company,Shenzhen 518001,Guangdong Province,China)

机构地区：[1]东南大学电气工程学院,江苏省南京市210096 [2]江苏省智能电网技术与装备重点实验室(东南大学),江苏省南京市210096 [3]深圳供电局有限公司,广东省深圳市518001

出　　处：《电网技术》2020年第7期2731-2737,共7页Power System Technology

基　　金：国家自然科学基金项目(51707033);深圳供电局有限公司科技项目;江苏省智能电网技术与装备重点实验室课题资助。

摘　　要：随着分布式电源和储能装置大量接入配电网,配电网在发生故障之后可以进行重构和孤岛划分,提高故障恢复的水平。为此,提出了一种同时包含重构与孤岛划分的故障恢复方法。建立包含多类型分布式电源、柔性负荷和储能的多时间段故障动态恢复模型,考虑分布式电源和储能的黑启动能力,并计及故障恢复时间和检修次序。利用二阶锥技术将所建模型转换成混合整数二阶锥规划模型。在PG&E69系统上对该算法的有效性进行验证,结果表明,与传统方法相比,所提故障恢复方法计算速度更快,故障恢复率更高。As a significant number of distributed generators and energy storage devices are connected to distribution network,it is possible for the network to reconstruct and make island partition,so as to improve efficiency of electricity recovery.This paper present a method including both reconstruction and island partition simultaneously.It is a multi-period,dynamic fault recovery strategy considering the coordination between distributed generators,flexible loads and energy storage devices,transforming non-convex nonlinear optimization problem into a mixed-integer second-order cone programming(MISOCP)problem.Validity and superiority of this model is demonstrated using PG&E 69 example.It turns out that the proposed method has faster computation speed and higher failure recovery rate,compared to traditional one.

关 键 词：故障恢复 网络重构 孤岛划分 混合整数二阶锥模型(MISOCP) 分布式电源(DG) 

分 类 号：TM721[电气工程—电力系统及自动化]