液压挖掘机系统控制参数的免疫优化整定方法

《液压挖掘机系统控制参数的免疫优化整定方法》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、HydromechatroniesEngineering机床与液压DOI：10．3969／j．issn．1001—3881．2012．06．014Immune—basedOptimizationTuningModelofControllerParameterinHydraulicExcavatorSystemHUANGLichao，CHENGSenlin，QINRenchao(1．SchoolofMachineryEngineering，ChongqingIndustryPolytechnicCol

2、lege，Chongqing401120，China；2．CollegeofAutomation，ChongqingUniversity，Chongqing400044，China；3．CollegeofComputerScience，SouthwestUniversityofScience&Technology，Mianyang621010，China)Abstract：Hydraulicpressuretransmissionisanervoussystemofengineeringmachin

3、ery，andavariablepumpisthecentralnervoussystemofhydraulicpressuresystem，thereforetheperformanceofthepumpwilldirectlydeterminetheperformanceandeficiencyofengineeringmachinery．Sincetheswitchingmechanismofcontrolmachineryinsteppermotorcouldbettersatisfythe

4、matchtorealizetheCVTtransmissionamongthevariableflowhydraulicpump，hydraulicvalveandhydraulicactuatingcylinder，anditcouldnotrealizetheoptimalpowerperformanceandtheoptimaleconomycontrolofcurrentfuel，asortofimmune—basedoptimizationtuningmethodforcontrolle

5、rparameterisproposedinthispaper．Thismethodtooktheobjectivefunctionofenergyconservationastheconstraints，andtheobjectiveconstraintswillbedirectlyintroducedintotheoptimizationprocessofcontrollerparameter，bymeansofimmune—basedoptimizationalgorithm，theselec

6、tedcontrollerparametercouldnotonlyensurethecontrolqualityofthesystemindynamicalandstaticperformance，butalsogiveattentiontotwoormorethingsofoptimalityinenergyconservation．Inthispaper，thecomparisonsbetweendifferentcontrolalgorithmhasbeenmadeandtherespons

7、ecurvesofsystemshowthatthepro—posedmethodhasbettercontroleffectforthetuningparameters．Therefore，thismethodisreasonableandfeasibleinthecontrolsystemofhydraulicexcavator．Keywords：hydraulicexcavator，parameteroptimization，intelligentcontroller，immunetheory

8、，cloneselection，muta—tion，parametertuningtheoperationprocess，itisdifficultforthetuningof1IntroductioncontrollerparametertogiveattentiontotwoormorethingssuchasenergyconservationandcontrolqualityThematchingandcontrolofreasonableparame·ofs