工業(yè)CT掃描運動同步控制研究.pdf

1、重慶大學(xué)碩士學(xué)位論文工業(yè)CT掃描運動同步控制研究姓名：孫亞星申請學(xué)位級別：碩士專業(yè)：模式識別與智能系統(tǒng)指導(dǎo)教師：王玨20090531英文摘要ABSTRACTAsakindofmodemdigitalradiographysystems，industrialCT(ComputedTomography)iswidelyappliedinthemanufacturingWiththedevelopmentoftechnology，itisat

2、rendtocallforhigherimagingspeedandaccuracyforindustrialCTSoitbecomesahotanddifficultresearchtoimprovetheaccuracyofthescanningmovementanditssynchronizationThepurposeofthispaperistoimprovetheaccuracymentionedaboveFirstly，t

3、herequirementsofmovementcontrolforindustrialCTareanalyzedinthispaper，andthenthemodelofthecontrolobject—PermanentMagnetSynchronousMotor(PMSM)ispresentedSecondly，thecontrolprinciplesareexpatiatedindetails，andapositionservo

4、systemisbuiltbasedonthePMSMmodelOnthisbasis，themodelofPMSMpositionservosystemandexecutingagencyarebuiltrespectivelyMoreoverthefactorswhichwouldaffecttheperformanceofthemodelareanalyzedBasedonanalyzingthecharacteristic，su

5、chasprinciple，controllerconstructionadvantagesanddisadvantages，ofPIDand腳controlstrategy，thetwokindsofcontrolstrategiesarecombined，namely，fuzzycontrolstrategyisappliedtotulletheparametersofthePIDcontrolleronlineSubsequent

6、ly，theintegrationseparationPIDalgorithm，universeselfttmningfuzzyalgorithmand岫parameterselftunningPIDalgorithmareappliedrespectivelytodesignandsimulatethepositionloopofthesystemTheresultsshowthattheintegrationseparationPI

7、Dalgorithmrespondedfastly，butitsanti—interferenceabilityisworsethantheuniverseselftuningfuzzyalgorithmMerely，thereiserrorandjitterinthesteadystateofthelatterHowever，thefuzzyparameterselfrunningPIDalgorithmhasgoodanti—int

8、erferenceability，anditsovershootislittleTheproblemthathowtogethighersynchronouscontrolprecisionofmulti—axismovementsystemisstudieddeeplybasedondiscussingthecontrollingprecisionofsingle—axismovementsystemThen，thestructure

9、ofmultiaxissynchronouscontrollingsystemappliedpresentlyisdiscussedSubsequently，theprincipleanddesignmethodofadjacentcross—couplingcontrolstructureisdiscussedtooNext，thestabilityofthemulti—axissynchronouscontrolsystemutil

10、izedthisconstructisanalyzedIntheend，thetwoaxissynchronouscontrollingsystemwhichutilizedtheparallelcontrolstructure，masterslavecontrolstructureandadjacentcrosscouplingcontrolstructurerespectivelyarcmodeledandsimulatedThes