一种基于协同进化算法的配电网重构和分布式电源注入功率综合优化方案  

A Comprehensive Optimization Formula for Injection Power of Distributed Generation and Distribution Network Reconfiguration Based on Co-evolution Algorithm

作　　者：欧帝宏[1] 陈皓勇[1] 

机构地区：[1]华南理工大学电力学院,广州510640

出　　处：《华东电力》2011年第6期895-899,共5页East China Electric Power

基　　金：教育部新世纪优秀人才支持计划(NCET-08-0207)~~

摘　　要：指出在配电网优化中必需考虑到分布式电源接入的影响。将DG注入功率作为优化变量,加入配电网重构优化的过程,提出了一种基于协同进化算法的配电网重构和分布式电源注入功率综合优化方案——将综合优化问题分解为各变量优化的子问题,采用协同进化的思想处理各个子问题;针对不同优化变量,设计了不同的编码方式,有助于寻求符合各自特点的进化方式;特殊的进化操作增强了算法的局部搜索能力,提高了计算效率;协同操作促进各种群优良基因的相互结合,避免陷入次优解。算例结果表明方案具有较高的计算效率。Now it is essential to consider the impact of Distributed Generations（DG） access on distribution network optimization.In this paper,injection power of DG is treated as an optimization variable to participate in distribution network reconfiguration,and a comprehensive optimization formula of distribution network reconfiguration and injection power of DG based on co-evolution algorithm is proposed.In the formula,the problem is divided into several sub-problems corresponding to the optimization of variables,and co-evolution algorithm is applied in solving each sub-problem.Different encoding schemes are designed in accordance with different optimization variables,to find evolution modes consistent with their own characteristics;a special evolution operation is applied to enhance the locally search ability of algorithm and computational efficiency;cooperation promotes the combination of good genes in different population,avoiding falling into sub-optimal solution.Results of the illustrative examples prove the high efficiency of the formula.

关 键 词：配电网 网络重构 分布式电源 协同进化算法 

分 类 号：TM72[电气工程—电力系统及自动化]