一種PID參數模糊自整定控制器在結晶器液位控制中的應用研究.pdf

1、武漢科技大學碩士學位論文一種PID參數模糊自整定控制器在結晶器液位控制中的應用研究姓名：趙萬峰申請學位級別：碩士專業(yè)：計算機應用指導教師：方康玲20030401武漢科技大學碩士論文AbstractThecOmmlsystemofmouldleveliscmcialtoimprovetheslabqualityintheconti“uouscaStingprocess，PDco眥rollerisu3edinthetraditionalmo

2、uldlevelcomrol，蛐ditllassomedef如lts叫chas：atthestan—uporfinishingperiodofcastingorduringthechange0Veroftundish，Pmcontrolhasabadeffbct，itsovershootislargeanditstransiemtimeislong；theemsionofthetundishstopperandthesubmersedn

3、ozzlesleadtotheaccuracyofcontrolbecomebad；theabmpt白lIo岱ofblockinthesubmersedno翻esmakesthelevel枷telynuctuate，andPIDcontrolcannotovercomethedistIlrb柚cesresulted行omthech粕geofcastingspeedBased0ntllecarefhlanaIysis0nthedimcul

4、tieswhichthemouldlevelcontrolsystemencOunt盯s，andscrupulousresearchonmanycontmIlerswhichappIiedtothemouldlevelcomr01system，a如zzyselBtuningPIDparameterscontrollerisadoptedinthispaper，whichaimedattakingplacetheoldP衛(wèi)Dcontrol

5、lerforwhichbadcontr01e疵ct舢thoughthefhzzyselBtuningPIDpar鋤eterscomrollerhasbeen印pliedinmanycontmlfields，itnotbereportedthatthemzzysel￡tuningPDpa舢eterscontrollerbeappliedtothemouldlevelcontfolsystem，accordingtothepfesentin

6、|o舯ationThe血zzyself二tuningPm’parameterscontrollerconsistsofsel二tuningparametersP扣DaIldmz2=ycommllerBasedonthenormalPIDcontrollerinthiscontrollerthe如zzycomrolIerbeappliedtoadjustthePIDpar姍eters：七p，t，以onlineGenerally，twoin

7、putsa11dtllreeoutputs如z糾comrolleris印pliedto如zzyselotuningPⅡ)parameterscomrollefInordert0avoidintricacy如zzyruleandcomplexcalculation，腳∞lft岫iIlgPIDp猢etersc∞hdlcrilI“spaper鋤lyt岫eJ|，，themz糾ruleisanintelligence如nctionAfterres

8、earched如zzyselftuningPⅡparameterscontroller’asimulationexperimentisshowninthispaperwhichdemonstratedthiscontroIlerisfeasibleAtIast，apracticalexperimentismadewiththeEFPTpmcess—controlequipment，theresultoftheexperimentmani