开关磁阻电机的性能分析及其优化设计方法研究.pdf

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1、河北工业大学博士学位论文开关磁阻电机的性能分析及其优化设计方法研究姓名：李洁申请学位级别：博士专业：电气工程指导教师：孙鹤旭2010-12 开关磁阻电机的性能分析及其优化设计方法研究推导了转子优化结构的磁阻方程，进行了电机磁场分布的仿真。分别在开关磁阻电机单相绕组励磁、两相绕组励磁的工作方式下，对决定电机优化结构的两个参数：孔径、孔心距进行了参数化仿真分析，对优化设计的电机进行了径向力和输出转矩的仿真分析。依据上述理论分析和仿真分析结果，对样机进行了优化设计，并进行了实验研究。实验结果证明了样机在输出特性、振动噪声等方面的性能均达到了良好的效果

2、。关键词：开关磁阻电机，电磁设计，有限元仿真分析，磁场力，振动噪声，优化设计ii 河北工业大学博士学位论文PERFORMANCEANALYSISANDDESIGNOPTIMIZATIONOFSWITCHEDRELUCTANCEMOTORABSTRACTSwitchedreluctancemotorhasdoublesalientpolesstructureandoperateswithaswitchedpowersupply,theseinherentidentitiesbringanon-linersaturationcharacterist

3、icofswitchedreluctancemotor’selectromagneticfield.Performanceanalysisanddesignofswitchedreluctancemotorareverydifferentfromconventionalmotor.Thevibrationthatresultingacousticnoiseinswitchedreluctancemotorbecomesfetterswhichrestrictthedevelopmentofswitchedreluctancemotordrive

4、.Theoreticanalysis,simulationandexperimentalresearcharecarriedoutwiththemesofperformanceanalysisanddesignoptimizationofswitchedreluctancemotor,andthisdissertationismainlycomposedasfollows:Switchedreluctancemotor’selectromagnetismdesignisthebasisofmotordesign,alsoisthestartin

5、gpointofitsoptimaldesign.Theelectromagnetismdesignmethodisintroduced;structuralparametersofthemotorselectionarediscussedstep-by-stepindetail.Aprototypemotor’sframeisbuiltaccordingtothedesignmethodology,andfiniteelementsimulationanalysisoftheprototypemotorispresentedwithsingl

6、e-phaseexcitedanddouble-phaseexcitedworkingmodes.Themagneticfielddistribution,staticperformances,dynamicperformancesaresimulatedandinvestigated,also,motorwithtwodifferentwindingconstructersaresimulatedandcompared.Minimizeswitchedreluctancemotor’svibrationandnoiseisthepriorit

7、yofdesignoptimization.Abasicdescriptionofnoisesources,noisecancellationandmitigationisintroduced.Andthequalitativedesignmeasurestoreducethenoiseareimplementedininitialdesignstage.Theprincipleofvirtualworkandprincipleofvirtualdisplacementareemployedtoanalysisthemagneticforces

8、,byusingageneralizedvariable,energystorageispresentedasafunctionoffluxandge