基于改进粒子群算法的配电网重构的研究  

Distribution network reconfiguration based on improved particle swarm optimization algorithm

作　　者：白丹丹[1] 刘观起[1] 郭丽[1] 

机构地区：[1]华北电力大学电力系统保护与动态安全监控教育部重点实验室,河北保定071003

出　　处：《华北电力大学学报（自然科学版）》2006年第6期20-23,共4页Journal of North China Electric Power University：Natural Science Edition

摘　　要：提出了基于改进二进制粒子群算法的配电网重构策略,在保证系统及用户供电质量的前提下,使得配电网重构的综合费用最低。从配电网重构实际应用出发,提出了综合考虑系统的电能损耗费用、开关运行维护及投切费用和停电损失费用四方面的目标函数。针对普通粒子群算法易陷入局部极值的缺点,采用改进的惯性权值策略,增强了算法的调节功能,克服了普通粒子群算法的早熟收敛现象。算法还对开关操作次数约束进行了处理使之不影响全局最优性。仿真结果表明,这种配电网策略可以明显降低系统网损和综合费用。改进的粒子群算法计算速度快,目标函数更贴近配电网重构的实际情况。A method based on improved particle swarm optimization （PSO） is proposed for distribution network reconfiguration to reduce the comprehensive cost.According to situation of the distribution network reconfiguration, the object function is proposed. The costs of network loss, capital of new switches, switch maintenance and outage are considered. A new inertia weight strategy is used to overcome the disadvantage of the particle swarm algorithm. The constraint of switches operation frequency is revised, Case analysis result shows that the operating cost is reduced.

关 键 词：电力系统 配电网络 网络重构 粒子群优化算法 综合费用 

分 类 号：TM727.2[电气工程—电力系统及自动化]