无刷直流电机启动特性分析

第10卷第2期2010年6月南京工业职业技术学院学报JournalofNanjingInstituteofIndustryTechnologyVo.l10,No.2Jun.,2010:20100315:(1962),,,,:江国栋(南京工业职业技术学院电气与电子工程学院,江苏南京210046):针对无刷直流电机采用PWM调制全桥式控制时的启动特性进行分析,研究了PWM占空比与启动电流之间的关系,并给出了实验结果对于电动车家用电器等领域中电机频繁停启时的效能问题,具有较重要的理论意义和实用价值:无刷直流电机;PWM;启动特性;启动电流:TM303.3:A:16714644(2010)02000803(BrushlessDCmotor,BLDCM),,,,,,,,,:;,Y,,60,,PWM()PWM,PWM,,1BLDCM()()[1]Y;120,,,,[2][3],1,LaLbLcABC,T1T2T3,T4T5T6,C1C2C3,C4C5C61,C1C2C3C4C5C6,PWM,,,,,,6060,,,60,,PWM,,,PWM2Y,,PWM,[4],(eAeBeC)Ud(,24V36V),PWMT,,102::Ud,I,,I=Ud-2U2RU,R,,,;,,,,,223,:24V,:300rpm,:4,:250W,:20NM,PWM,fm,:fm=6!2!30060=60HzPWM10,,PWM,PWM12.5kHz,0.01,PWM,,,3:(1),67,;(2)PWM,PWM;(3)PWM,PWM;(4)PWM,,4,,67,,PWM,,3:[1]叶金虎.现代无刷直流永磁电动机的原理和设计[M].北京:科学出版社,2007.[2]夏长亮.无刷直流电机控制系统[M].北京:科学出版社,2009.[3]MC33035:BrushlessDCMotorController[EB/OL].[20100213].=MC33035DWG.[4]刘刚,王志强,房建成.永磁无刷直流电机控制技术与应用[M].北京:机械工业出版社,2008.(下转第23页)9102,:tp://download.csdn.net/source/2052358.[4]肖攀,周定陆.基于台架试验方法的车身疲劳分析[J].计算机辅助工程,2006,15(1):217.[5]BIGNONNETA,THOMASJJ.FatigueAssessmentAndReliabilityinAutomotiveDesign[R].SAEPaper2001014061.StrengthAnalysisofAutoFrontSubframeBasedonBenchTestMethodsXUJiangtao,DINGJibin(NanjingInstituteofIndustryTechnology,Nanjing210046,China)Abstract:Inthispaper,usingthemethodoffiniteelementanalysissimulatesbenchteststrengthforacarfrontsubframe,gottenstaticimageanddisplacementimagesoffrontsubframe.Accountinganalysis,canbeusedonpredictablesafetyofthesimulationsystemundertheconditionofbraking,andfindaweakpositionoffrontsubframe,thengottenamethodtoimprovethedesignwithoutphysicalproductivity.Keywords:frontsubframe;load;finiteelement;benchtest(责任编辑陈晓润)(上接第7页)TheoryandAdvancesofMicrobialDesalinationCellsPINGQingyun,JIANGLingbo,HEShuqiong,ZHANGMing(EastChinaNormalUniversity,SchoolofResourceandEnvironmentalScience,Shanghai200241)Abstract:BasedonMicrobialfuelcel,lMicrobialdesalinationcellusesCEMandAEMbetweenanodechamberandcathodechambertoformamiddlechamberfordesalination,whichmakeswastewaterpurification,saltywaterdesalination,andpowergenerationpossibleinonedeviceatthesametime.ThispaperfocusesonthetheoryandprogressinMDC,andtherelatingtechniques,suchasMFCanddesalination,inordertoprovideideasforfurtherdevelopmentofMDCtechnique.Keywords:Microbialdesalinationcel;lMicrobialfuelcel;ltheory;progress(责任编辑陈晓润)(上接第9页)PropertyAnalysisofBrushlessDCMotorStartingJIANGGuodong(NanjingInstituteofIndustryTechnology,Nanjing210046,China)Abstract:ThispaperanalyzedthestartingpropertyoftheBrushlessDCMotorusingathreephase,fullwaveandsixstepdrivercontrollerandPWMmode.TherelationshipbetweenPWMdutycycleandstartingcurrentwasalsostudied.Theexperimentresultsweregiven.WhenBrushlessDCMotorisfrequentlystartedandstopped,forinstanceofelectricbicycle,forsolvingtheefficiencyofBLDCM,thereareimportanttheoreticalsignificanceandpracticality.Keywords:BrushlessDCmotor;PWM;startupproperty;startingcurrent(责任编辑陈晓润)23