基于LS-FID策略与差分进化算法相结合的含DG的配电网重构  

Distribution Network Reconfiguration with DG Based on LS-FID Strategy and Differential Evolution Algorithm

作　　者：周步祥[1] 陈鑫[1] 王鑫 刘思聪 ZHOU Bu-xiang;CHEN Xin;WANG Xin;LIU Si-cong(College of Electrical Engineering,Sichuan University,Chengdu 610065,China;PowerChina Sichuan Electric Power Design&Consulting Co.,LTD.,Chengdu 610041,China;State Grid Sichuan Electric Power Company Chengdu Shuangliu Power Supply Branch,Chengdu 610200,China)

机构地区：[1]四川大学电气工程学院,四川成都610065 [2]中国电建四川电力设计咨询有限责任公司,四川成都610041 [3]国网四川省电力公司成都市双流供电分公司,四川成都610200

出　　处：《水电能源科学》2019年第11期198-202,126,共6页Water Resources and Power

摘　　要：为提高电力系统运行的经济性和可靠性,并考虑分布式电源的接入,建立了以系统网损和电压偏差最小为目标函数的配电网重构模型。考虑到传统算法效率低、不可行解量大的缺陷,提出环路搜索-快速孤岛检测(LS-FID)策略,并将该策略与差分进化算法结合求解网络重构方案。简化网络拓扑,减少了部分不可行解的产生;然后利用环路搜索方法分解搜索空间,针对迭代中出现的不可行解,利用快速孤岛检测方法进行检测以减少计算次数。最后对IEEE33、IEEE69和119节点系统进行仿真分析,并与多种智能算法进行比较,仿真结果表明所提方法在提高搜索速度、减少搜索空间和提高寻优成功率等方面有较大优势,验证了该方法的有效性和优越性。In order to improve the economy and reliability of power system operation,considering the access of distributed generation,a distribution network reconfiguration model is established based on the objective function of power loss and voltage deviation.In view of the inefficiency of traditional algorithms and the large amount of infeasible solutions,a loop search-fast island detection(LS-FID)strategy is proposed.And then the network reconfiguration scheme is solved by combining the strategy with differential evolution algorithm.The network topology is simplified to reduce the generation of some infeasible solutions.Then the loop search method is used to decompose the search space.Aiming at the infeasible solutions in the iteration,the fast island detection method is adopted to reduce the number of computation times.Finally,the simulation analysis of the IEEE33,IEEE69 and 119 node systems is implemented.Compared with other intelligent algorithms,the results show that the proposed method has some advantages in improving search speed,reducing search space and improving the success rate of optimization,which verifies the effectiveness and superiority of the method.

关 键 词：差分进化算法 环路搜索 拓扑简化 孤岛 

分 类 号：TM762[电气工程—电力系统及自动化]