摘要
为更高效地进行接地网故障诊断,提出一种基于改进黏菌算法(ISMA)的封闭图形遍历诊断方法。首先,基于电网络理论建立接地网模型,本研究设计封闭图形遍历方法进行诊断:设计合适的封闭图形将接地网划分出若干区域,先对这些区域进行移步遍历诊断,得到适应度最小的故障区域后,再对故障区域进行停步遍历诊断,从而找到故障支路。其次,针对该模型,采用改进黏菌算法进行求解:该算法引入Bernoulli混沌映射改善种群初始值,并采用柯西变异跳出局部最优。最后,在某接地网的故障诊断仿真实验中,通过封闭图形遍历诊断方法与普通诊断方法进行对比,结果表明:所提方法具有更强的收敛能力与更高的求解精度。
In order to carry out the fault diagnosis of the grounding grid more efficiently,a closed graph traversal diagnosis method based on the improved slime mold algorithm(ISMA)is proposed.Firstly,the grounding grid model is established based on the electrical network theory,and a closed graph traversal method is designed for diagnosis:design a suitable closed graph to divide the grounding grid into several areas,first perform a step-by-step traversal diagnosis on these areas,and obtain the fault area with the smallest fitness.Then,stop-step traversal diagnosis is performed on the fault area to find the fault branch.Secondly,for this model,the author uses the improved slime mold algorithm to solve:the algorithm introduces Bernoulli chaotic map to improve the initial value of the population,and uses Cauchy mutation to jump out of the local optimum.Finally,in the fault diagnosis simulation experiment of a grounding grid,the closed graph traversal diagnosis method is compared with the common diagnosis method.The results show that the proposed method has stronger convergence ability and higher solution accuracy.
作者
祝宝帅
王昕
ZHU Baoshuai;WANG Xin(School of Electrical Engineering,Shanghai Electric Power University,Shanghai 200090,China;Teaching Development and Student Innovation Center,SEIEE,Shanghai 200240,China)
出处
《电瓷避雷器》
CAS
北大核心
2023年第1期56-64,73,共10页
Insulators and Surge Arresters
基金
国家自然科学基金(编号:61673268)。
关键词
接地网
电网络理论
故障诊断
封闭图形遍历诊断
改进黏菌算法
grounding grid
electrical network theory
fault diagnosis
closed graph traversal diagnosis
improved slime mold algorithm
