摘要
为解决极端灾害下配电网发生事故后的故障恢复,提出一种供电能力动态修复下的配电网故障抢修与修复的协调优化方法,在极端灾害下通过配电网的重构与抢修快速恢复供电能力。首先,综合考虑重要负荷恢复、网络损失、开关动作次数等因素,创建考虑孤岛、重构与抢修的配电网故障恢复耦合规划模型,各层之间相互影响,动态优化,保障配电网可靠、快速恢复正常。然后,分别介绍各层模型及算法,采用动态孤岛划分策略,利用改进的鲸鱼优化算法(whale optimization algorithm,WOA)和动态恢复策略实现配电网故障抢修过程中更快更好地恢复供电能力。最后,通过算例仿真验证了所提策略的有效性。
In order to solve the fault recovery of distribution networks after accidents under extreme disasters,a coordinated optimization method of fault repair and restoration of distribution networks under dynamic restoration of power supply capacity is proposed,which quickly restores the power supply capacity through reconfiguration and repair of distribution networks under extreme disasters.First,the coupled planning model of distribution network fault restoration considering islanding,reconfiguration,and repair is created by comprehensively considering important load restoration,network loss,and the number of switch actions,and the layers interact with each other and dynamically optimized to ensure that the distribution network is reliably and quickly restored to normal.Then,the models and algorithms of each layer are introduced respectively,and the dynamic islanding strategy is adopted to realize faster and better restoration of power supply capacity during distribution network fault repair using the improved whale optimization algorithm(WOA)and dynamic recovery strategy.Finally,the effectiveness of the proposed strategy is verified by arithmetic simulation.
作者
陈冰冰
刘家腾
吴浩天
梁睿
王海威
CHEN Bingbing;LIU Jiateng;WU Haotian;LIANG Rui;WANG Haiwei(State Grid Naijing Power Supply Company,Nanjing 210019,China;School of Electrical Engineering,China University of Mining and Technology,Xuzhou 221000,China)
出处
《山东电力技术》
2025年第8期25-35,44,共12页
Shandong Electric Power
基金
国网江苏省电力有限公司科技项目(J2023102)。
关键词
配电网
孤岛划分
故障抢修
动态恢复
distribution networks
islanding
fault repair
dynamic recovery
