永磁直線同步電動(dòng)機(jī)伺服控制技術(shù)研究

1、分類號(hào)密級(jí)單位代碼：10019學(xué)號(hào)：B030529’專目差≮犬等學(xué)位論文永磁直線同步電動(dòng)機(jī)伺服控制技術(shù)研究ControlDesignforPermanentMagnetLinearSynchronousMotorServoSystem研究生：盎窒盔指導(dǎo)教師：奎堡塾撞合作指導(dǎo)教師：申請(qǐng)學(xué)位門類級(jí)別：蘭芏盟專業(yè)名稱：主趣三堡研究方所在學(xué)向：——院：三莖瞳2006年6月AbstractPermanentMagnetLinearSynchron

2、ousMotors(PMLSM)aregettingmoreandmorewidelyusedinmachinetoolfeedingsystem，fortheyofferseveraladvantages，suchaShighspeed，highaccelerationandhighstiffness，overtheconventionalrotarymotorsandballscrewconstructionbyeliminatin

3、gmechanicaltransmissionmechanismsHowevertheseadvantagesareobtainedattheexpenseofaddeddifficultiesincontrollingsuchasystemAsexternaldisturbancesaretransmittedtothemotorarmaturewithoutreductionandthushavedirecteffectonthem

4、otionofthemotorFurthermore，thelinearmotorhastwoendswhichwillcauseadditionalforcerippleThus，inorderforalinearmotorsystemtobeabletodeliveritshiighperformancepotential，acontrollerwhichCaneffectivelysuppressallkindsofperturb

5、ationshastobeemployed，ThatistosaythecontrollerhasgoodrobustnessInthisdissertation，thePMLSMseYvocontrollerdesignproblemwerefurtherstudied，andthedetailswereasfollow1，TheconstituentsandtheirworkingprinciplesofthePMLSMservos

6、ystemwereexpoundedandthecontrolschemeofthewholesystemWasestablishedThetopologiesandtheo哆ofthePMLSMwereintroduced，andthenitsmathematicmodelwasbuiltThevectorcontrolschemewaschosenbycomparingitsadvantagesanddisadvantageswit

7、hthedirectthrustcontrolmethodThecurrent，VelocityandpositionloopcascadecontrolstrategywasemployedtocontroltheservosystemFinally，thefunctionofeachloopWasanalyzedandthecontrolgaintuningrulesforinnerloopandouter!oopWere二esta

8、blished2Inthecurrentloop，thecontrolvoltagewasconstrainedbytheSVPWMstrategyInordertoobtainthefastesttransientresponse，atimeoptimalcurrentcontrollerWasempioyedThephasecurrentcharacteristicsanditshighfrequencycomponentintro

9、ducedbytheinverterwereanalyzedAhighprecisioncurrentmeaSuringmethodbaSedonfilteringandtimedelaycompensationwasproposed3AcascadediscretetimeslidingmodecontrolstrmegywasproposedtoimprovethePMLSMservosystem‘Srobustnesstounce

10、rtaintiessuchasdisturbancesandparametervariationTeducethechatteringphenomenaoftheslidingmodecontrol，anadaptivediscretetimeslidingnaodecontrolmethodwasproposedBothsimulationandexperimentresultsverifiedtheeffectivenessofth

11、eproposedcontrolschemeinreductionoftheresponsetimeandthechatteringinslidingmodecontrol4ThecharacteristicsoftheforcerippleintroducedbyPMLSMwasanalyzedandatest—bedwasbuilttomeasureitsvalue，whichWasthencompensatedbystrategi

12、esbasedonlookuptableandcurvefittingExperimentresultshowedthattheinfluenceofforceripplewasgreatlyreduced5Asallthedisturbancescouldnotbemeasuredandcompensated，aperturbationcompensationmethodbasedonnonlinearextendedstateobs

13、erverwasdesignedSoallthedisturbancescouldbeobservedandcompensatedExperimentwascarriedouttoverifyitseffectiness6PerformanceofthesystemsuchaspositioningaccuracyandstiffnessweretestedKeywords：PermanentMagnetLinearSynchronou