基于免疫原理的PID控制参数整定方法.pdf

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1、机床与液压Sep．2013HydromechatronicsEngineeringV0l_41No．18DOI：10．3969／j．issn．1001-3881．2013．18．021TuningMethodofPIDControllerParameterBasedonImmunePrincipleBIBoInternationalSchool，ChongqingfiaotongUniversity，Chongqing400074，ChinaAbstract：TechnicalperformanceofPIDcentrelsystemliesonthec

2、ontroIparameterofsystemcontroller．Aimedatthepuzzlethatitwouldbedificulttobecompatiblewiththedemandamongeachtechnicalindexintheprocessofcontrolparametertuning，thispaperproposedasortofpa—rametertuningmethodinPIDcontrollerbasedonimmuneprinciple．Inthispaper．itdiscussedtheobjectivefun

3、ctiontoco0rdinatetherelationshipamongeachtechnicalIndex．describedthecorrespondingrelationshipbetweenbodyimmunesystemandcontrolsystem．constructedthemodelofcontrolparametertuningbasedonimmuneprinciple，andstudiedonparticularimmunecontrolalgorithm．Thepapertook2-orderprocesswithbiglag

4、asanexample，thecontrastivestudyofsimulationexperimentresponse，inwhichitadopteddiferenttuningmethod，demonstra·tedthatbyusingoftunedcontrolparameterbasedonimmunemethod．itisfastinsystemre-sponsetime，shortinsystemadjustingrime，smalinsystemovershoot，be~erincompatibilitya-mongtechnical

5、index．TheresearchresultsshowthattheproposedmethodisasortofoptimizingalgorithmforPIDcontrolparametertuning．Keywords：immuneprinciple，PIDcontroler，controlparameter，parametertuningmethodbefore[3—4]．Inspiredbybiologicalimmunesys-1．Introductiontem，thispaperproposedasortofPIDcontrolpara

6、m—etertuningmethodbasedontheimmuneprinciple，Withthedevelopmentofmodemtechnology．aandbymeansofthetunedcontrolparameteritcanlotofadvancedcontrolalgorithmshavebeenpro．constructthePIDcontrollersoastoactualizetheop—posed．However，uptonowthemostcommonmethodtimizingcontrolforcontrolledob

7、ject．ofpracticalapplicationsisstilltheconventionalPIDcontrolalgorithmintheprocessindustrialcontro1．2．ConformationofobjectivefunctionOwingtothecomplexityofproductionfieldsituation，ifitisunsuitableincontrolparametertuning．thenitTheclosed~edbackcontrolsystemisshownasisacertaintytore

8、sultinpoorcontroleffectproducedinFig．1．I