500kv变电站接地网优化设计模型-研究

《500kv变电站接地网优化设计模型-研究》由会员上传分享，免费在线阅读，更多相关内容在应用文档-天天文库。

1、万方数据东北大学硕士学位论文AbstractParetooptimumtheorygetsanon—dominatedsolutionsetinwhichthesolutionsareequaltoeachotherandnoneofthemisbetterthanothers．Thedesignercallselectoneprogramforimplementationonthebasisoftheexperienceanduser'srequirements．Thebestreferencesolutionmaybeobtainedfromthenon—

2、dominatedsolutionsetmathematically．Inthispaper,afastandelitistnon—dominatedsortinggeneticalgorithm，themostrepresentativealgorithmformulti-objectiveoptimizationproblems，isadoptedtosolvetheoptimizationmodeltodesigngroundinggridsinelectricalsubstationsandimprovementofthealgorithmarepro

3、videdsimultaneously．Basedonintensivestudy,thispaperraisesanewmethodforprocessingconstraintsinmulti-objectiveoptimizationproblems．Objectiveconvertingmethodconvertstheconstraintsintoanewobjectivewhichdoesnotaddanyparameter．ThisPaperemploystwodifferentmethodsandconstraintprocessingmeth

4、odstothenewoptimizationmodeltodesigngroundinggridsinelectricalsubstationsandverifiesthefeasibilityandeffectivenessofthemodelbycomparingandanalyzingtheresult．Attheend，thispapersummariesthewholeworkbrieflyandanalyzestheshortageofthenewoptimizationmodeltodesigngroundinggridsinelectrica

5、lsubstationsproposedhereandgivessomeadvicesonfLu'therwork．Keywords：Groundinggridsinelectricalsubstations；Multi-objectiveoptimization；Weightedcombinationmethod；Differentialevolutionalgorithm；NSGA-IIIV万方数据东北大学硕士学位论文目录目录独创性声明⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．I摘要⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯

6、⋯ⅡAbstract．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．III第1章绪论⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯11．1接地技术概述⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．11．1．1接地的概念⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯一21．1．2接地的分类⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．

7、21．1．3接地系统的作用⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯一31．1．4接地技术的发展趋势⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．31．2国内外研究历史及现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．31．2．1土壤结构模型的建立和相关参数计算⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．41．2．2接地参数数值的计算⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．41．2．3接地网的优化设计⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．61．3变电站接地网存在的问题⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯

8、．71．3．1变电站接地网在运行中存在