无刷直流电机无位置传感器控制的研究(3)

2020-12-24 22:16

Abstract

BruslilessDCmotors(BLDC)areever-increasinglyutilizedin

appliances.Withitswidemanyfields,includingapplicationinmanyindustrialcontrollersandhousehold

fields,thetraditionalsellsorcontrolmethodisnot

asappliedinsomeapplication.so,sensorlesseonla'olmethodemergesthetimesrequire,especiallyBack EMFmethodis

sensormoreandmoreusefulthanthetraditionalcontrolmethod.Now,it’sbecomingone

ofthemostpopulartrendinBLDCcontrol

Basedonsystem.theprincipleandthemathematicalmodeloftheBLDCmotordrives,the

theoryofBack-EMFmethodandthezero-crossingdetectingeircoitareintroducedandanalyzedindetail.Butwhenthemotorisatstandstilloratalowspeed,itisimpossible

aorverydifficulttogetthepositioninformationfromback—EMF.Thereforeparticular

methodtostartupthemotorfromstandstillisneededinsensorlesscontrolmethod

ofsystembasedonBack-EMFdetection.hlthispaper,the

aadvantageanddisadvantagetheconlmonstart-upmethodareanalyzed,and

calledpositionclosed—loopstarting,itnovelstart—upmethodisproposedwhichof

toconsiststhree—step--initialback—EMFrotorpositionestimation,positionclosed—loopstarting,tuming

andexperimentalresultshave

detectionerrordriving.Thesimulationdemonstrateditswellstartingperformance.Rotorpositionandinterruptionisalsoinvestigatedinthispaper,thencompensationandrestralnationmethodareproposed.

Intheend,withsoftwaredesignaccomplishedinCodewarrior,thehardwaresystemofBrushlessDCmotorssensorlesscontrolbasedonMC56F805isbuiltasanexperimentalplatform.Experimentalresultsandpracticalutilizationssubstantiatethatthe

goodhardwareplatformandtheassociatedsoftware

capability;indicatingthedesigncansupplyseusoflesscontrolsensorlesscontrolsystemcangreatlymeettherequiredperformance,andtheexperimental

11ighresultshaveshowntheaccuracy、rapidresponseandreliabilityoftheproposedmethod.

sensorless

errorKeywords:BLDCpositionclosed loopstart-upmethodcompentionandrestrainationofdetectionandinterruptionMC56F805II


无刷直流电机无位置传感器控制的研究(3).doc 将本文的Word文档下载到电脑 下载失败或者文档不完整,请联系客服人员解决!

下一篇:新部编版五年级上语文25《古人谈读书》优质课说课稿

相关阅读
本类排行
× 注册会员免费下载(下载后可以自由复制和排版)

马上注册会员

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: QQ: