模糊PID控制器的研究

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1、哈尔滨工程大学硕士学位论文模糊PID控制器的研究姓名：丁坚申请学位级别：硕士专业：信号与信息处理指导教师：李一兵20090301哈尔滨T程大学硕十学位论文AbstractPIDiSoneoftheearliestdevelopedmethodofthecontrol，becauseofitssimple，robustandreliableandwidelyusedinprocesscontrolandmovementcontr01．Inparticular，itcartbeappliedtoestablishtheprecisemathema

2、ticalmodelofthesystemuncertainty．However，theactualprocessofindustrialproductionareoftennon-linear,time-varyinguncertainty，itisdifficulttOestablishaprecisemathematicalmodel．TheapplicationofconventionalPIDcontrollercannotachievethedesiredeffectofcontrol，butalsoinactualon-site

3、production，BecauseoftheconventionalPIDparametertuningmetllodcomplex，theparametersettingisoftenpoorperformanceandpoorworkingconditionsforthepooradaptability．Fuzzycontroltechnologyisanimportantbranchofintelligentcontr01．Fuzzycontrolbasedonfuzzy·settheory，fuzzylanguagevariable

4、sandfuzzylogic-basedintelligentcomputercontr01．Theadvantageisnotreqmmdtograsptheobjectofprecisemathematicalmodels，andaccordingtothemanualcontrolorganizationrulestocontrolthedecision-makingtable，andthenbythedecisiontOtablethesizeofthevolumecontr01．Whentheobject、Ⅳ嬲charged、Ⅳi血

5、theexistenceofnon-linear,time-varying,multi—parameterstrongcoupling,thecomplexmechanismoftheprocessCannotbechal卿、Ⅳitlltheestablishmentoftheobjectortheprecisemathematicalmodeloftheprocess，thefuzzy-controlrulesoftheexpertcontrolmodetopr0Ⅵdeaidealcontrolstrategy．Inthisthesis，b

6、asedonfuzzyinferences，aself-tuningPIDcontrollerisdesigned．Itisfortemperaturerelation．Amodeloffuzzyrulesisbuiltontheoperator’Sexperiences，anditischangedintoaninquiryform。AccordingtOthesystem’Srealrespondingsituation,fuzzyreasoninganddecisionareusedtoregulatePIDcontroller’Spa

7、rametersonline．Weonlyneedtomeasur．ethecontrolledsystem’Sdesiredoutputandrealoutputandcomputethedifferenceof哈尔滨T枵大学硕十学位论文them，thengettheresultofself-tuningfactorbyfuzzyinferenceanddecision．Afterattainingtheself-tuningfactor，WCcaIladjustallPIDcontrollerparametersbytheself-tun

8、ingformula．The舭冽self-tuningPIE)controller,whichhassimplerstructureandhi曲errobustne