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荣德生,胡举爽,韩淑敏.基于支路交换和声搜索算法的配网重构[J].电源学报,2018,16(2):159-164
基于支路交换和声搜索算法的配网重构
Distribution Network Reconfiguration Based on Branch Exchange Harmony Search Algorithm
投稿时间:2016-04-05  修订日期:2017-04-20
DOI:10.13234/j.issn.2095-2805.2018.2.159
中文关键词:  配网重构  和声搜索算法  环路分解  支路交换法
英文关键词:distribution network reconfiguration  harmony search algorithm  loop decomposition  branch exchange method
基金项目:
作者单位E-mail
荣德生 辽宁工程技术大学电气与控制工程学院, 葫芦岛 125105  
胡举爽 辽宁工程技术大学电气与控制工程学院, 葫芦岛 125105 1403436227@qq.com 
韩淑敏 辽宁工程技术大学电气与控制工程学院, 葫芦岛 125105  
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中文摘要:
      采用标准和声搜索算法HSA(harmony search algorithm)进行配网重构时,在搜索最优方案的过程中容易陷入局部最优,且搜索结果受初始参数值的影响。为此,引入结合启发式规则的支路交换法对新和声进行局部搜索,生成第2个新和声,增加了和声记忆库的多样性,使得算法能够逃离局部最优,进而提高了算法的全局搜索能力;采用基于环路分解的编码方式对和声编码,保证初始解集中每个和声都是可行解。采用IEEE 33节点系统进行算例分析,与标准和声搜索算法、遗传算法进行对比分析,结果表明该算法的收敛更迅速,可以快速逃离局部寻优,且寻优性能不受初始参数的影响,验证了改进算法满足可实现性较高的寻优性能。
英文摘要:
      In the distribution network reconfiguration using a standard harmony search algorithm(HSA), the algorit-hm will easily be trapped by local optimums, and the searching results are also affected by the initial parameter values. To solve this problem, branch exchange method is introduced to the local search of a new harmony and further generate a second one, which increases the diversity of harmony memory and helps the proposed method jump out of local optimums, thus improving the global searching ability of the algorithm; the coding of harmony is realized using the encoding method based on loop decomposition, which ensures that every harmony in the initial solution set is a feasible solution. An IEEE 33-node system is adopted as a numerical example. Compared with the standard HSA and genetic algorithm, the proposed algorithm has a faster convergence speed, and it can quickly avoid falling into local optimums. Moreover, the optimization performance is not affected by the initial parameters. It is verified that the improved algorithm can realize a higher searching performance.
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