混合动力装载机复合储能系统6σ稳健设计
文档名：混合动力装载机复合储能系统6σ稳健设计
摘要：复合储能式混合动力装载机可以降低车辆燃油消耗,实现能量高效回收,但由于系统组成较为复杂、装载机工作环境恶劣且存在较多不确定性因素,使得整车运行的经济性无法达到最佳状态.为此,采用6σ稳健优化设计理论,对影响复合储能系统性能的参数进行优化设计,得到可靠性较高的优化参数;在4种常见工况下通过装载机的整车后向仿真模型对6σ算法的优化结果进行验证,发现整车燃油消耗量明显下降,4种工况的平均节油率分别为11.14％、10.30％、10.40％、11.38％;利用dSPACE硬件在环的试验方式验证了仿真结果与试验结果基本一致,误差在0.5g内,证明6σ优化效果切实有效.
Abstract：Summary:Thecompositeenergystoragehybridloader,duetoitscomplexsystemcompositionandharshworkingenvironmentwithmanyuncertainties,doesnotachieveoptimaleconomicperformance.Tocopewiththecomplexandvariableconstructionenvironmentandreduceperformancedegradationcausedbysystemparameterfluctuations,itisnecessarytooptimizetherobustnessandreliabilityofthecompositeenergystoragesystem.Thecompositeenergystoragehybridloaderstudiedinthispaperhasaparallelstructure.Thevehicle'spowersourcesincludetheenginesystem,thebattery-motorsystem,andthehydraulicsystem.Theenginesystemservesastheprimarypowersource,thebattery-motorsystemmainlyprovidesauxiliarypower,andthehydraulicsysteminputsenergystoredinthehydraulicaccumulatorintothetransmissionsystemasanotherpoweroutputsystemfortheloader.Thecompositeenergystoragesystemoftheloadermainlyconsistsofthesethreeparts.Byrobustlyoptimizingthesethreesubsystems,thecompositeenergystoragesystemcanachieveoptimalperformanceduringloaderoperation.Theoptimizationmethodusedis6σrobustdesign.Theprincipleinvolvescombiningtherobustdesignofthetolerancemodelsetwiththemodernoptimizationdesigntheoryofthe6σqualitymanagementstandard.Thisapproachnotonlyoptimizesthetargetfunctionbutalsoreducestheimpactofsomeconstraintsandrelatedvariablefluctuationsontheoptimizationtarget,therebyimprovingthereliabilityofthetargetafteroptimizationandultimatelyenhancingrobustness.Thespecificprocessfirstinvolvesdeterministicanalysisforeachsystem,constructingobjectivefunctions,parametervariables,andvariableconstraints.However,theresultsofdeterministicoptimizationareoverlyidealisticanddonotconsidertheimpactofuncertainties,makingthemunrealisticforpracticalengineeringapplications.Consequently,theoptimizedparametervaluesmaynotbeabsolutelyreliable.Therefore,a6σrobustdesignisappliedtothecorrespondingsystems,constructingcorrespondingobjectivefunctions,parametervariables,andvariableconstraints.UsingIsightsoftware,amulti-objectiveoptimizationalgorithmandMonteCarlosimulationrobustoptimizationmethodareselectedtooptimizethemodels.Theoptimizeddataistheninputintotheestablishedvehiclesimulationmodelforvalidationundervariousworkingconditions.Ourresultsshowasignificantreductioninvehiclefuelconsumption,withaveragefuelsavingsratesof11.14％,10.30％,10.40％,and11.38％acrossfourworkingconditions.Finally,ahardware-in-the-loopexperimentisconductedusingdSPACEexperimentalequipment,andacomparativeanalysisofexperimentalandsimulationdataisperformed.Ourresultsdemonstratetheeffectivenessandfeasibilityofthe6σrobustdesignoptimizationfortheloadersystem.Inaddition,theapplicationof6σrobustdesignintheoptimizationprocessnotonlyimprovestheeconomicefficiencyofloaders,butalsoenhancestheiroverallperformancestabilityinvariousoperatingscenarios.Thiscomprehensiveapproachensuresthatloaderscanbetteradapttotheharshandunpredictableconditionsofconstructionsites,therebyachievingmorereliableandefficientoperations.Thesuccessfulimplementationofthisrobustoptimizationmethoddemonstratesitspotentialforwiderapplicationinsimilarengineeringfields,wheresystemreliabilityandperformanceareequallyimportantinconstructionscenarios.Throughcontinuousimprovementandverification,thismethodcansignificantlyimprovethestabilityandsafetyofcompositeenergystorageengineeringmachinerysuchascompositeenergystorageloaders.
作者：刘振博 林慕义 白宇 成恺 Author：LIUZhenbo LINMuyi BAIYu CHENGKai
作者单位：北京信息科技大学机电工程学院,北京100192北京信息科技大学机电工程学院,北京100192;北京电动车辆协同创新中心,北京100192
刊名：重庆理工大学学报 PKU
Journal：JournalofChongqingInstituteofTechnology
年，卷(期)：2024, 38(9)
分类号：TH137
关键词：6σ理论稳健设计动态工况复合储能
Keywords：sixsigmatheoryrobustdesigndynamicconditionscompositeenergystorage
机标分类号：TH122U461.8TP393
在线出版日期：2024年7月11日
基金项目：国家自然科学基金混合动力装载机复合储能系统6σ稳健设计[
期刊论文]重庆理工大学学报--2024, 38(9)刘振博林慕义白宇成恺复合储能式混合动力装载机可以降低车辆燃油消耗,实现能量高效回收,但由于系统组成较为复杂、装载机工作环境恶劣且存在较多不确定性因素,使得整车运行的经济性无法达到最佳状态.为此,采用6σ稳健优化设计理论,对影响复合...参考文献和引证文献
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混合动力装载机复合储能系统6σ稳健设计Hybrid loader hybrid energy storage system 6 sigma robust design
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