开关磁阻电机间接检测技术的研究

《开关磁阻电机间接检测技术的研究》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、西安科技大学硕士学位论文开关磁阻电机间接检测技术的研究姓名：宋景哲申请学位级别：硕士专业：检测技术与自动化装置指导教师：王勉华20080415Subject：ResearchonPositionSensorlessTechniqueofSwitchedReluctanceMotorSpecialty：DetectingTechnologyandAutomaticEquipmentName：SongJingZheInstructor：WangMianHuaABSTRACTS’叮JI(Signature)门≥h＼’I一∞．tt一-￥1hO：

2、立：过二一、(Signature)Theswitchedreluctancemotor(SRM)drivesystemhasgottenmoreattentionsbecauseofitsexcellentcharacteristicsofthefirmstructure，lowcostandflexiblecontrol，itsapplicationhasbeenlimitedbytheexistenceofshaftpositionsensor．thepreviousschemesofSRDarealwaysequipped谢也ro

3、torpositionsensor，whichdeterminesthesystem’Shi班speedperformance，reliabilityandcost．Asaresult，howtOdetectthepositionofnon-positionsensorrotorhasbecomeonemajordirectioninthestudyofSRD．TheconfigurationandfundamentaloperatingprincipleofSRMareanalyzedinthesubject。Andthelatest

4、developmentsofthesameresearchfieldbothathomeandatabroadarewellanalyzedatthebeginningofthedissertation．Thesame，thissubjectputsemphasisonthetwodifferentdetectingmethodsofnon-positionsensorrotor,whicharebasedonArtificialNeuralNetwork(ANN)andnon—linearinductancemodelofSRM．Th

5、edetectingmethodofSRM’SrotOrpositionbasedonArtificialNeuralNetwork(ANN)isfirststudiedinthispaper．AnANNrotorpositionmodel毋瓴￡)ofSRMisbuilt、ⅣithmodifiedBPneuralnetwork．Duetothenon-linearinfluencebetweenphaseinductanceandrotorposition，whenaneuralnetworkmodelisused．Therearemo

6、reerrorswherethemotor'sairintervalisbigger．SothispapersuggeststOapplytwoneuralnetworksconsideringthedifferentsituation．Emulationresultimpliesthismethodiseffective．Inthepaper,bedirectedagainstofthemethod，whichisbasedonnon—linearinductancemodelofSRM，which’Sprinciplefirstwe

7、llisanalyzed。Themethodneedactivephasecurrentsaremeasuredinreal-timeandusingthesemeasurements，thedynamicequationsrepresentingtheactivephasesaresolvedusingnumericaltechniquesinordertoobtainrotorpositioninformation．Thesame,itisbuildedthatthesystemsimulationmodelintheMa畦abSi

8、mulink,simulationresultiSeffective．Theend，thedesignoftheh毅dwaleandsoftwareofSRMdrivesystemaleintroduced