资源描述：
《fuzzy logic controller》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、SensorsandActuatorsA199(2013)216–226ContentslistsavailableatSciVerseScienceDirectSensorsandActuatorsA:Physicaljournalhomepage:www.elsevier.com/locate/snaFuzzylogiccontrollerwithneuralnetworksignalpredictorsforcomplexsplit-rangecontrolofahybridactuatorG.∗vanScho
2、or,D.G.Breed,C.P.duRandSchoolofElectrical,ElectronicandComputerEngineering,North-WestUniversity,PrivateBagX6001,Potchefstroom2531,SouthAfricaarticleinfoabstractArticlehistory:Thispaperpresentsanintegratedfuzzylogiccontroller(FLC)toaddresschallengesassociatedwit
3、hcom-Received11September2012plexsplit-rangecontrolofatwo-valves-in-parallelhybridactuator.Split-rangehybridvalve(HV)controlReceivedinrevisedform24May2013aimstoprovideamoreeffectivestrategytoovercomeflowproblemsassociatedwithnonlinearvalveAccepted24May2013flowAvai
4、lableonline11June2013coefficientsanddiscontinuitieswhileextendingrangeability.Themainissueisthetrade-offbetweensystemperformance,controlschemecomplexity,andthecostofextraequipment(multipleactuators).TheKeywords:hybridconfigurationfacilitatesalargeandsmallvalveina
5、noverlappingoperatingregime,provid-ingthecontrollerwithsomefreedomtominimizethefeedbackerror.ThecontrolchallengeliesattheSplit-rangecontrolcontrolvalveboundarieswherenonlineartransitionsinmassflowrateoccur.TheaimofthecomplexNonlinearactuatorsplit-rangecontrolist
6、hereforetominimizethedisturbanceinthemassflowrateduetothementionedHybridactuatorvalvenon-idealitiesduringcriticalvalvetransitions.Anovelsplit-rangecontrolschemeisdevisedthatControlvalvecomprisesanintegratedFLC,upperandlowerboundaryneuralnetwork(NN)signalpredicto
7、rs,afuzzyFuzzylogiccontrollogicinferencesystem(FLIS),andacrispcontrollertoquantifyallthecontroldecisionsthatcannotbefuzzified.TheNNpredictorsenvisagethenecessityforalargevalvenonlineartransitioninordertomin-imizeitseffectontheflowrateoftheHV.Expertknowledgeisused
8、asbasisforparameterdefinitionsintheFLIS,therebyfacilitatingtheimplementationofcontrolstructurestoaddressphenomenasuchasnon-linearmassflowtransitions,valvestiction,andpoorvalve
