基于参数自整定的模糊PID控制器及其应用.pdf

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1、机床与液压Mar．20l3HydromechatronicsEngineeringVo1．41No．6DOI：10．3969／j．issn．1001—3881．2013．06．016Fuzzy-PIDControllerofParameterBasedAuto·tuningandItsApplicationHUANGWei．WUQianJ．DepartmentofAutomation，ChongqingIndustryPolytechnicCollege，Chongqing401120，China；2．SchoolofComputerScienceandE

2、ngineering，ChongqingUniversityofTechnology，Chongqing400054，ChinaAbstract：Aimedatbeingdificulttomakesystemcontrolefectbeinthestateofoptimizingfr0mbeginningtoendbymeansofPIDcontrolparameterobtainedthroughdisposabletuning，thepa-perexploredasortoffuzzy-PIDcontrollerofparameterbasedaut

3、o-tuning．CombinedfuzzylogiccontrolwithclassicalPIDcontroltechnique，bydintoffuzzyauto—tuningofPIDcontrolparameterofline，whenthesystemperformanceproducesthechangeandgoesbeyondspecifiedrange，thesystemwouldautomaticallystartthetuningprocessofPIDcontrolparameter，andmodifiedthePIDcontro

4、lparameterinrealtime．madetheretunedPIDcontrolparameterbeableinthestateofoptimizingallthetime，andthereforeitcouldobtainbe~ercontrolefect．Inthepaper，ittookcentralair-conditioningcontrolofenvironmenttemperatureinproductiontechnologyofciga‘rettefactoryasanexample，andthetestdataofactua

5、lsystemsimulationdemonstratedthatitenhancedthecontrolprecisionandstabilitytofuzzy—PIDcontrollerofparameterbasedauto-tun。ing．Theresearchresultshowsthattheexploredcontrollercansatisfytheworkingconditionde-mandinstrongrobustnessandhighprecisionofactualsystem．Keywords：parameterauto-tu

6、ning，fuzzycontrol，self-learning，fuzzy-PIDControler1．Introduction2．LimitationofPIDcontrolThedemandofproductiontechnologyinciga—TheFig．1showsthecontrolmodelofPIDalgo-rettefactoryisveryhighforenvironmenttempera—rithm．InFig．1，e(t)(=r(t)一Y(t))，r(t)，ture，andbyuseofPIDcontrolitisdificult

7、tosatisfyY()，“(t)isrespectivelythedeviation，inputandtheuserrequirementinaspectsofprecisionandsta·outputoftheprocess，andoutputofthecontroller．bility．Bymeansoffuzzyauto—tuningofPIDcontrolThetypicalresponseisshownasinFig．2．Inwhich，parameteronline，thepaperputforwardtomodifye，ecreprese

8、ntsrespectivelytheprocessdeviatio