资源描述：
《The Comparison of Sensorless Estimation Techniques for PMSM Between Estended Kalman Filter and Flux-linkage Observer》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、ThecomparisonofSensorlessEstimationTechniquesforPMSMbetweenExtendedKalmanFilterandFlux-linkageObserverM.C.Huang1andA.J.Moses1andF.Anayi11CardiffUniversity/SchoolofEngineering,Cardiff,UKAbstract—Thispapercomparestwomainsensorlesscontrolinfour-quadrants.Thispapercompa
2、resthetwoclassictechniquesforpermanentmagnetsynchronousmotorssensorlessmethodsinstart-up,speedresponseandzero(PMSM):Flux-linkageobserver(FLO)andExtendedcrossinginfour-quadrants.KalmanFilter(EKF).ThispaperinvestigatesexperimentallyfiveaspectsviaFLOandEKF:theerrorofes
3、timatedII.SENSORLESSCONTROLBASEDONFLUXLINKAGEposition,speedresponse,variablespeedtuning,theabilityOBSERVERofspeedzerocrossingandconvergenceintheestimationforpositiontransitioninfour-quadrants.ThefluxlinkageobserverisbasedonthephasordiagramofaPMsynchronousmotorshowni
4、nfigure1,whereUandIarevoltageandcurrentvector,ψsisstatorflux-I.INTRODUCTIONlinkage,ψfistheexcitationfluxlinkagebyPMfixedonHighperformanceindustrialservodrivesmostlyemploythed-axis,LandRarephaseinductanceandresistancepermanentmagnetsynchronousmotorswithpositionrespec
5、tively.sensorssuchasopticalencodersorrevolversforfeedback.Althoughsensorlesstechniquehasbeendevelopingfor15years,itisstilldifficultforthemtobeappliedindrivesbecauseofsomeinherentdrawbacks:initialpositionjudgmentatstart-up,operationinfour-quadrantregion,etc.Fluxlinka
6、geobserver(FLO)[1,2]isasensorlessestimationforpermanentmagnetsynchronousmotors(PMSM)basedontheintegrationofbackEMF,withasimplestart-upmethod,anexplicitandfastcomputingscheme,andreliableprecisionofposition.However,initiallythevoltagevectormustbeappliedtoterminalsofth
7、emotorwinding[3,4],andFLOisonlyusedonsurface-mountedpermanentmagnetsynchronousmotors(SMPMSM),notonsalient-polepermanentmagnetmotorssuchasinteriorPMmotors.However,surface-Figure1ThephasordiagramforPMSM[9]mountedPMSMsaremostlyusedinACservodrives;Theanglebetweend-axisa
8、ndα-axisistheestimatedthereforeFLOisstillthelowcostandreliableschemeforrotororientedangle.Thefirststepistoobtainψsfromtmotordrivemanufactu
