基于改进参数协进化和声搜索算法的配电网重构  

Distribution Network Reconfiguration Based on Improved Harmony Search Algorithm with Parameters Co-Evolution

作　　者：邹锐 王超学[1] ZOU Rui;WANG Chaoxue(School of Information and Control Engineering,Xi*an University of Architecture and Technology,Xi'an 710055,China)

机构地区：[1]西安建筑科技大学信息与控制工程学院,陕西西安710055

出　　处：《自动化仪表》2021年第7期53-58,62,共7页Process Automation Instrumentation

摘　　要：配电网重构是智能电网的关键技术之一,是非确定性多项式难题(NP-hard)。在确立了网损最小为配电网重构的优化目标后,提出一种改进的参数协进化和声搜索算法。首先,针对参数协进化和声搜索算法在局部寻优时反馈环较长的问题,提出一种辅助新和声的策略进行优化;其次,为克服和声搜索算法本身应用于整数规划的配电网重构时音调调节带宽难以确定的困难,使用并优化一种自适应新和声优化策略;最后,通过对T型节点的分析提出一种不可行解的处理方案,提升了算法的寻优性能。基于IEEE 69节点系统和某实际配电网的仿真对比测试表明,所提出算法与其他改进的和声搜索算法相比,具有更好的收敛性能和寻优性能。Distribution network reconfiguration is one of the key technologies of smart grid and a non-deterministic polynomial hard(NP-hard)problem.The optimal objective of distribution network reconfiguration is set to minimize network loss,and an improved harmony search algorithm with parameters co-evolution is proposed.Firstly t Aiming at the problem that the feedback loop is long when the harmony search algorithm with parameters co-evolution is used for local optimization,a strategy to assist the new vector is proposed for optimization.Secondly,In order to overcome the problem that harmony search algorithm itself is difficult to determine tonal bandwidth in integral programming distribution network reconfiguration,a new self-adaptive harmony optimization strategy is used and optimized.Finally,through the analysis of T-node,a processing scheme of infeasible solution is proposed,which improves the optimization performance of the algorithm.Simulation tests taken in IEEE 69 node system and a real distribution network show that the proposed algorithm has better convergence performance and optimization performance compared with other improved harmony search algorithms.

关 键 词：配电网重构 非确定性多项式难题 和声搜索算法 粒子群优化算法 辅助新和声 参数协进化 不可行解 

分 类 号：TH-3[机械工程]