无轴承薄片电机转子动力学及稳定性的分析

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1、南京航空航天大学硕士学位论文无轴承薄片电机转子动力学及稳定性的分析姓名：陈姝申请学位级别：硕士专业：电机与电器指导教师：邓智泉20080301无轴承薄片电机转子动力学及稳定性的分析*AbstractUltra-puredrivingishigh-airproofandnoncross-contaminatetechnologywhichdevelopswiththedevelopmentofmodernscienceandiswidelyusedinapplicationssuchaspharmacy,medicalequipment,chemicali

2、ndustryandlifescience.Thebearinglessslicemotorhasnotonlyalltheadvantagesthatbearinglessmotorhas,butalsohasdesirableairproofpropertyduetoreductionoftheaxialbearing.Thetechnologyofmagneticsuspensionisnotappliedtotheultra-pureapplicationuntiltheappearanceofbearinglessslicemotor.When

3、workingathighspeed,theproblemssuchaspoorstabilityandanti-interferenceofthebearinglessslicemotorlimititsfurtherdevelopmentandapplication.Theanalysisanddesignofdynamicbehavioroftherotorinfluencetheperformacneofthewholesystenwhenitcomestoabearinglessslicemotorsystemworkingathighspee

4、d.Takeforexampleaman-madebloodpumpinwhichamotorsystemisused,theuser'slifeistotallyonthestabilityofrotorsystem.Thispaperproposesamodelofthedynamicbehaviouroftherotorofpassivesuspensionusingtheprincipleofgeostaticsandmechanicsofgyroscope.Thestabilityofsystemunderdifferentdamps,diff

5、erentfunctionsanddifferentparametersisanalyzed.AH∞controllerisdesignedforabearinglessslicemotortoinvestigatetheeffectofthecontrollertothedisturbance.TheresultsofthesimulationarecomparedwithPIDcontroller.ThestaticsuspensionofthebearinglessslicemotorisrealizedthroughdSPACErealtimes

6、imulationsysteminthispaper.KeyWords:bearingless,slice,dynamic,H∞————————*AcknowledgethegrantsofNationalNatureScienceFoundationofChina(50507008)ii南京航空航天大学硕士学位论文图表目录图1.1无轴承薄片电机结构及其被动悬浮原理.....................................................1图1.2应用于半导体领域的内嵌式粘度计结构和实物图.................

7、....................2图2.1径向悬浮力与悬浮电流关系ANSYS有限元仿真结果............................11图2.2无轴承薄片电机主动悬浮动力学模型总体图...........................................12图2.3径向外加正弦外扰力时电机系统的转速波形图.......................................12图2.4转矩加阶跃外扰力矩时电机系统的悬浮位移波形图...............................13图2.5径向外加扰

8、力时电机系统的悬浮波形图............................