27271.海上自升式鉆井平臺升降控制系統(tǒng)設計與研究

1、大連海事大學碩士學位論文海上自升式鉆井平臺升降控制系統(tǒng)設計與研究姓名：梁曉玲申請學位級別：碩士專業(yè)：檢測技術與自動化裝置指導教師：孟憲堯20100601英文摘要ABSTRACTWiththedevelopmentofworldeconomicandtechnologyoceanicdevelopmenthasbecomeanimportantaspectofnewtechnologyrevolutionOffshoregasandoil

2、developmentcarlbeviewedasoneofthemajorpartsinoffshoreresourcedevelopmentprojectMobileoffshoreplatformsaleservedasthemainequipmentsforoffshoregasandoilexplorationanddevelopmentCurrentlythecontrolsystemsforoffshoredrilling

3、platformsneitherusednormadeinChinaareallimportedfromabroadDomesticresearchesonseajackupdrillingplatformliftingsystemarerelativelyfewerSOthatitisofgreatimportancetocarryoutresearchinthisfieldThisdissertationisbasedontheDa

4、lianMaritimeUniversity&CoscoNantongDMICo，Ltdjointproject一jackupoffshoreplatformtoenhancelockcontrolsystemsFirstlytheprincipleandfunctionsofseajack—upplatformliftingcontrolsystem(SJPLCS)aleintroducedinthisthesisSecondlyth

5、econtrolsystemforSJPLCSisdesignedintermsofthesystemrequirementsandtypesofequipmentsforthecontrolsystemarealsodeterminedFurthermore，amathematicalmodelforliftingsystemisestablishedFinallysimulationresultsaregivenbasedOilad

6、aptiveintelligentfuzzysmithcontrolalgorithmThestructureofseajack—upplatformdistributedcontrolsystemisintroducedThecommunicationbetweenindustrialcontrolcomputerandPLC，conceptsofdataacquisitionandcentralizedeontr01arealsod

7、iscussedBesides，thesuitablecontrolalgorithmismainlydiscussedduetothecomplexandlargedelaycharacterofthecontrolsystemTheSmithpredictorfuzzypredictioncontrolandthefuzzySmithcontrolarealsostudiedAnadaptiveintelligentfuzzy—Sm

8、ithcontrolalgorithm(AIFSCA)isproposedtofurtherimprovethesteadystateaccuracyandadaptivecapacityofSmithcontrol。SimulationresultsdemonstratethebettercontrolperformanceandbetterrobustnessoftheproposedAIFSCAcomparedwithSmithp