摘要
分布式电源的接入导致传统的故障定位方法不再适用,为了实现配电网快速定位,提出一种基于改进模因算法故障定位算法。首先构建能动态适应分布式电源投切的开关函数,然后以变电站为基础将复杂配电网络分区,划分为相互独立的子网络。将含有多条馈线的子网络划分为几个区域,通过等效原则,在对某一区域进行故障定位的时候,将其他区域进行等效,这样不仅降低了可行解的维度,使计算的复杂性降低,同时也简化了开关函数的计算。利用蚁群算法产生初始种群,模因算法对配电网进行故障定位,仿真结果表明算法能快速的求解出单点故障和多点故障,在信息缺失和畸变情况下,算法也有良好的容错能力。
With the access of distributed power supply,the traditional fault-section location method is no longer applicable. In order to realize fast fault location,a new fault location algorithm based on improved memetic algorithm is proposed. A new switch function is built,which can adapt itself to the change caused by the switching of DG.The complex distribution network is divided into several independent sub-network based transformer substation. The sub-network with multiple feeders is divided into several regions. Based on equivalent principle,when the fault location algorithm is used in one of the regions,the other regions can be equivalent to a simple network. So the complexity of computation of fault-section location is reduced and the calculation of switching function is simplified. The ant colony algorithm is used to generate initial population,and the memetic algorithm is used for fault location. The simulation results show that the proposed method is effective and fast when it is used to locate single fault or multiple faults. It has good fault tolerance as the lack or distortion of the fault information.
出处
《电子测量与仪器学报》
CSCD
北大核心
2016年第2期265-273,共9页
Journal of Electronic Measurement and Instrumentation
基金
国家863高技术基金(2011AA05A107)项目资助
关键词
模因算法
故障定位
开关函数
分区处理
memetic algorithm
fault location
switch function
regional processing
