基于PSO的配网重构与电容器投切综合优化算法

配电网络重构和电容器投切是配电网络优化的两个重要内容,简单地迭加难以反映二者之间的联系和影响,不能到达整体最优的目的。将二者融为一体,提出了一种基于PSO的综合优化算法。算法借鉴了遗传算法的变异思想,对具有集聚倾向的粒子进行速度变异,避免了“早熟”现象;并结合配电网络综合优化问题的特点,适当地改进更新规则来同时处理不同类型的变量,引入“飞回”策略处理越限问题。算例结果表明所提算法不依赖于网络的初始状态,不易陷入局部最优,优化效果好。

Comprehensive optimization of distribution network reconfiguration and capacitor switching based on particle swarm optimization

Distribution network reconfiguration and capacitor switching are two important aspects of distribution network optimization.This paper presents a comprehensive optimization algorithm based on particle swarm optimization for distribution network reconfiguration and capacitor switching.The algorithm brings the idea of mutation of GA into PSO to avoid prematurity,modifies update rule of PSO to deal with different types of variables,and uses "fly back " strategy to deal with the problem of exceeding position limitation of particle.The numerical example shows validity of the presented algorithm.