基于数据驱动的pid控制器优化分析

《基于数据驱动的pid控制器优化分析》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、-------华北电力大学硕士学位论文AbstractWiththedevelopmentofmodernindustry,theprocessofproductionismoreandmorelargeandcomplex,theoperatingpointvarieswidely,whichmakesitdificulttobuildmodels.Data-drivenasatechniquethatdoesn’trequiretheobjectmodel,andonlyrequiresI/Odatatocompletecontrollerde

2、signhasbecomeahotresearch.Inthispaper,weusetheI/OdataofthesystemdirectlytooptimizethePIDparametersonlinefornonlinearsystem.Firsly,weuseK-NN(K-NearestNeighor)algorithmtoelectinformationfromthesystemdatabasethatmatchesthecurrentsystemstatus,andthenusingthelinearweightedaverageme

3、thodtoobtainthePIDparameters.Onthebasis,accordingtotheoptimizationcriterionfunction,itachievesthePIDparametersadjustmentonlineandgivesouttherelevantdatabaseupdateprinciple.Throughseveralnonlinearsystemsimulationexperiments,itconformestheeffectivenessoftheoptimizationalgorithm.

4、Secondly,theproposedmethodisappliedtothesuperheatedsteamtemperaturecontrolsystem.RespectivelyusingMatlab/SignalConstrainttoolboxandtheproposedmethodtooptimizeparamtersofflineoronlineforthesuperheatedsteamtemperaturesystemcontrollerunderdifferentload.Andthenwegettheoptimizedval

5、uesobtainedbythetwomethodsasthePIDcontrollerparametersandconductstepdisturbancetest,theresultscofirmtheeffectivenessoftheproposedalgorithmfurther.Thenwetakearobustnesstestfor75%loadofthesystem,andtheresultshowsthatithascertainrobustness.Finally,theoptimizationalgorithmispropos

6、edbyMatlab/GUIgraphicaluserinterface.Usercanoperateitevenifhedosen’tunderstandthealgorithmandobservetheoutcurveofthesystemandthecorrespondingvalueoftheparameteroptimizationinboththetraditionalPIDcontrolandPIDoptimizationbasedondata-drivencontrol.Keywords:Data-Driven;PIDcontrol

7、ler;optimization;SignalConstrainttoolboxII-----------华北电力大学硕士学位论文目录摘要...................................................................................................................................IAbstract....................................................................

8、.............................................................