电动车用无刷直流电机无位置传感器控制的研究(6)

时间:2025-04-29

浙江大学硕士学位论文

ABSTRACT

Recentlyduetotheadvantageofenergy-savingandenvironmentalprotectionmanykindsofelectricvehicles(such

used.Brushlessaselectricbicycle,electricwheelchair,andelectriccar)havebeenwidelyDC(BLDC)motorsdominatethefieldofdrivemotorsforelectricvehicles,becauseoftheirsimplestructure,high

ConventionalbrushlessDCmotorsefficiency,andexcellentperformanceofspeedpositionsensorregulation.usetoprovidecommutationsignals,which

sensorlesscontrolwillincreasemotorsize,system

technologywill

simplifythenotcostandmaintenancedifficulty.Utilizingandonlysavetheconsiderablecostspaceforpositionsensor,butalsoproceduresofsystemassembly

toaandmaintenance.Oncesensorlesscontroltechnology

industry.

Basedonbecomesmature,itwillleadsignificantrevolutionintheelectricvehicletheprincipleandthemathematicalmodeloftheBLDCmotordrives,thetheoryof

andthezero-crossingdetectingcircuit

areareBack—EMFmethodintroducedandanalyzedindetail,thencompensationmethodproposed.

AnovelstartingmethodofthebrushlessDC(BLDC)motorswithoutpositionsensorforelectric

avehicles(EV)isproposed,includingdetecting

methodtoaccelerateofrotorpositionatstandstillandstart-叩the

onrotoruptoacertainspeedwheretheconventionalpositionsensorlesscontrolmethodsbasedthebackEMFcouldworkeffectively.Thewholestartingprocedureis

estimation,whichcanaccompanied、Ⅳitll

thestartingrotorpositionavoidthetemporaryreverserotationandfailureofelectricvehicles.

Furthermore,specificstrategiesofstartingtorqueoptimization

developedtoimproveelectricvehiclessystem

oneandregenerativebrakingareperformance.ThisandahardwaresystemneedsonlycurrentsensorattheDCbusoftheinverter

alow-costgeneral—purposemicrocontrollerHCS08,whichbecomessimple,compact,low-cost,andeffectivesolutionforsensorless

aBLDCmotorsinthefieldofelectricvehicles.Itisdemonstratedexperimentallythatrapidand

stablestartingCanbeachievedbytheproposedmethod.

sensorlesscontrolelectricvehiclesKeyword:BLDCback—EMFinductancesaliency

filteringdepthadjustmentregenerativebrakingIII

电动车用无刷直流电机无位置传感器控制的研究(6).doc 将本文的Word文档下载到电脑

精彩图片

热门精选

大家正在看

× 游客快捷下载通道(下载后可以自由复制和排版)

限时特价:7 元/份 原价:20元

支付方式:

开通VIP包月会员 特价:29元/月

注:下载文档有可能“只有目录或者内容不全”等情况,请下载之前注意辨别,如果您已付费且无法下载或内容有问题,请联系我们协助你处理。
微信:fanwen365 QQ:370150219