文档名：磁链闭环控制下接触器的优化设计方法
摘要：该文对接触器的优化设计进行研究,将磁链闭环控制引入接触器本体优化设计中,实现控制策略与本体优化设计的协同.首先,综合考虑接触器的外部漏磁和磁场分布特性,在三维有限元动态仿真的基础上构建改进的磁路模型,以实现磁路模型的参数化计算.然后,提出了一种改进的非支配排序遗传算法(NSGA-Ⅱ)与磁路模型相结合进行优化设计,以Pareto前沿个数判断种群进化进程,实现自适应遗传-差分混合进化策略,提高了多目标优化设计算法的全局收敛性和收敛速度.最后,将恒磁链闭环控制策略与多目标优化设计相结合,通过减小接触器的电磁惯性、机械惯性及提高控制磁通密度,来提高机构响应速度和磁性材料利用率,同时减小触头弹跳.仿真及实验验证了改进磁路模型及多目标优化设计方法的有效性.
Abstract：Thetraditionalcontactor'soptimizationdesignprocessrequiresstaticcalculation,prototypeproduction,andrepeatedtesting,whichconsumesmuchtimeandishighcost,demandingsubstantialhumanandmaterialresources.Thefiniteelementdynamicsimulationmethodhasbecomethemainwaytooptimizethecontactordesignbutitishinderedbyprolongedcalculationtime.Theoptimizationdesignmethodismainlybasedontheorthogonalexperimentalmethod,whichcanonlygeneratethelocaloptimalsolutionsattheexperimentallevel.Intelligentoptimizationdesignalgorithmscanachieveglobaloptimalsolutionsbutrequirealotofiterativecalculations.Therefore,thispaperproposesanimprovedoptimizationalgorithmforthedynamicprocessofcontactorstoreducetheelectromagneticandmechanicalinertiaofcontactorsandincreasethemagneticdensity.Theresponsespeedofthemechanismandtheutilizationrateofmagneticmaterialsareimproved,reducingcontactbounces.Firstly,consideringtheexternalleakagefluxandmagneticfield'sdistributioncharacteristicsincontactors,animprovedmagneticcircuitmodelisconstructedbasedonthethree-dimensionalfiniteelementdynamicsimulationtocalculateparameters.Then,animprovedNSGA-Ⅱalgorithmisintroducedforoptimizationdesign.ThenumberofParetofrontsisusedtojudgetheevolutionprocessofthepopulation,andtheadaptivegeneticdifferentialhybridevolutionstrategyisrealized,improvingglobalconvergenceandconvergencespeed.Finally,combinedwithaconstantfluxclosed-loopcontrolstrategyandmulti-objectiveoptimizationdesign,thespeedresponseandmagneticmaterialutilizationareimprovedbyreducingelectromagneticandmechanicalinertiawhileincreasingmagneticdensitytomitigatecontactbounces.Simulationsandexperimentsareconductedontheimprovedmagneticcircuitmodel.Theresultsshowthatthesimulationandexperimentalwaveformsarealmostconsistent,witherrorsoflessthan3%withintheallowablerange.CombinedwiththeimprovedmagneticcircuitmodelandtheimprovedNSGA-Ⅱalgorithm,thecontactordesignisoptimizedbythefluxlinkageclosed-loop.Theoptimizationresultsshowthattheprototype'sholdingpowerisreducedto0.72W,theaveragebouncetimeisreducedto0.7ms,theaveragenumberofbouncetimesisreducedto2,thenumberofcoilturnsisreducedto1304,andthemagneticdensityisincreasedfrom0.54Tto0.73T,improvingtheutilizationrateofmagneticmaterialsandreducingthepowerconsumption.Thefollowingconclusionscanbeobtained:(1)Animprovedmagneticcircuitmodel,consideringtheexternalmagneticleakageandmagneticfielddistributionsinthedynamicprocessofthecontactors,maintainscomputationalefficiencyandaccuracyacrossstructuralparametersandcontrolstrategyvariations,suitableforoptimizingelectromagneticmechanismswithdiverseparametricforms.(2)TheimprovedNSGA-algorithmⅡjudgesthepopulationevolutionusingthenumberofindividualsintheParetofrontierandselectsevolutionstrategiesandprobabilitysettingsaccordingtodifferentstagesofpopulationevolution,therebyeffectivelyreducingthecalculationnumberoffitnessfunctionsandenhancingtheglobalconvergence.(3)Underconstantfluxclosed-loopcontrol,theelectromagneticandmechanicalinertia,contactbounces,andmaterialutilizationratearetakenasthemainoptimizationindicators.Thedesignedprototypehasadvantagessuchasfastresponse,shortcontactbouncetime,highmaterialutilizationrate,andlowholdingpower.
作者：汤龙飞 姚林睿 阳文蔚 Author：TangLongfei YaoLinrui YangWenwei
作者单位：福州大学电气工程与自动化学院福州350108;智能配电网装备福建省高校工程研究中心福州350108福州大学电气工程与自动化学院福州350108
刊名：电工技术学报 ISTICEIPKU
Journal：TransactionsofChinaElectrotechnicalSociety
年，卷(期)：2024, 39(10)
分类号：TM572
关键词：接触器 优化设计 磁路法 改进的非支配排序遗传算法(NSGA-Ⅱ)
Keywords：Contactor optimizeddesign magneticcircuitmethod nondominatedsortinggeneticalgorithm-Ⅱ(NSGA-Ⅱ)
机标分类号：TP391.7TH122O224
在线出版日期：2024年5月31日
基金项目：福建省自然科学基金资助项目磁链闭环控制下接触器的优化设计方法[
期刊论文] 电工技术学报--2024, 39(10)汤龙飞 姚林睿 阳文蔚该文对接触器的优化设计进行研究,将磁链闭环控制引入接触器本体优化设计中,实现控制策略与本体优化设计的协同.首先,综合考虑接触器的外部漏磁和磁场分布特性,在三维有限元动态仿真的基础上构建改进的磁路模型,以实现磁...参考文献和引证文献
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