SENSORLESSSPEEDCONTROLOFASWITCHEDRELUCTANCEMOTORFORINDUSTRIALAPPLICATIONSAbstract:TheElektrotechnischeInstitutoftheUniversityKarlsruhehasdeveloped,optimisedandmanufacturedaSwitchedReluctanceDrivewithpowerconvertersandcontrolengineeringaccordingtothelatestscientificfindings.Themotorhasbeenconstructedfortheratedoutputpowerof18,5kWat1500r.p.m.forindustrialapplications.Thecommonsupplyforthevoltage-sourceconverteris3x400V/50Hz.Forthisapplicationtheauthorshavedevelopedamethodtoestimatetherotorpositionandthespeedwithoutarotorpositionencoder.Keywords:OPTIM,SwitchedReluctanceMotor，SensorlessSpeedControl,EstimationofRotorPosition1.IntroductionThesensorlessspeedcontrolandtheestimationoftherotorpositionhavealreadybeentreatedinseveralpublications.Theauthorsofthesepublicationspreferrablyusedsmallermotorsorhigh-speeddrivesfortheirtests.Differingfromthesepublications,thispaperwilldiscussthesensorlessspeedcontrolofamotorwitharelativelyhighratedtorqueof118Nm.Furthermore,thestrengthofthisSwitchedReluctanceMotormustbeseeninaspeedrangebelow1000r.p.m.Withinthisrange,itsefficiencyanditsdynamicisveryhigh.Wo1.ThispapertreatstheoperationofahightorqueSRdriveforlow-speedapplicationswithoutarotorpositionencoder.Theresultsofthistestdonotprovideacompletesolutionforthesensorlessspeedcontrolbuttheycanbeseenasbasicideaandasstimulationforfollowingfurthertests.Theselectionofthemethod,itsrestrictionsandpossibilitieswillbediscussedhere.2.MotordesignTheElektrotechnischeInstitutselectedtheSwitchedReluctanceMotorwith16statorpolesand12rotorteeth.Itisa4-phase-windingmachine,the4statorpolesthatareshiftedby90toeachotherformonephase-winding.3.Voltage-sourceconverterThevoltage-sourceconverterconsistsofamainsandamotorconverter.Thecommonsupplyforthethreephase-self-commutatedmainsconverteris400V/50Hz.4.Flux-currentmethodTheprocedureforthesensorlessestimationofrotorpositionandspeedmustbesuitableforthetestdrivewith18.5kW,118Nmand1500r.p.m.Itdefinitelyhastousethenon-linearmodeloftheSwitchedReluctanceMotor.AverygoodoverviewofsensorlessmethodsfordeterminingtherotorpositionofswitchedreluctancemotorsisgiveninRay.Forthetestdrive,weselectedtheflux-currentmethod.5.AnglefilterDespitethegoodresultsfortheestimationoftherotorposition,singlevaluescanvarystronglyfromtheactualposition.Therearerangeswithinthecharacteristicoftheflux-linkagewheresmallerchangesofthecurrentorfluxcauseabiggerchangeoftherotorposition.Withintheseranges,alreadysmallermeasurementinaccuraciescausearelativelybigerrorintheestimationoftherotorposition.Experimentshaveshownthattheestimationwithinananglerangingfrom-3to-7respectivelyfrom3to7operatesveryreliably.Fortheremainingrangetheestimatedangleshouldundergoaplausibilitycheck.Duetotheinertiamomentofthemotor,thespeedremainsalmostconstantduringasamplingtimeof120ms.Iftheangleoftheactualsamplinginstantwhichisestimatedfromthefluxlinkagedeviatesfromthepreviousdetectionstepininadmissablesize,thenewangleiscalculatedbythepreviousangleandproductofspeedandsamplingtime.Withinthetorquecontroltheestimatedangleisrequiredfordefiningtheswitch-on/switch-offtimesforthephasecurrents.TorqueandspeedcontroloftheSwitchedReluctanceDrivesaredescribedinWo1.TheyhavealsobeenimplementedontheDSP.傳感器速度控制開關(guān)磁阻電機的工業(yè)應(yīng)用摘要：電氣學(xué)院的卡爾斯魯厄大學(xué)的發(fā)展，優(yōu)化和生產(chǎn)的開關(guān)磁阻電機功率轉(zhuǎn)換器與控制工程按照最新的科學(xué)發(fā)現(xiàn)。電機已建造的額定輸出功率18.5千瓦的1500r.p.m，適用于工業(yè)應(yīng)用。共同供應(yīng)電壓源轉(zhuǎn)換器3x400V/50Hz。針對這種應(yīng)用，作者開發(fā)了一個方法來估計轉(zhuǎn)子位置和速度無轉(zhuǎn)子位置編碼器。關(guān)鍵詞：電刷，開關(guān)磁阻電機，速度控制傳感器，轉(zhuǎn)子位置估計1.導(dǎo)言有幾個出版物介紹了速度控制傳感器和估計轉(zhuǎn)子位置。作者這些出版物最好是用較小的汽車或高速硬盤來驗證他們的試驗。與這些出版物不同，本文將討論速度控制傳感器的馬達(dá)，有相對較高的額定力矩118牛頓米。此外，這個強度的開關(guān)磁阻電機必須被看作是一次速度范圍如1000r.p.m。在此范圍，其效率和其動態(tài)是非常高的Wo1本文處理的運行高力矩簡驅(qū)動，對于低速應(yīng)用無轉(zhuǎn)子位置編碼器。測試結(jié)果，不提供完整的解決速度控制傳感器方法，但它們可以被視為基本的想法和促進(jìn)下一步的試驗。所選擇的方法、其限制和可能性，將在這里討論。2.汽車設(shè)計選定的電氣學(xué)院的開關(guān)磁阻電動機定子與16桿和12槽。這是一個4相繞組電機，4定子極有轉(zhuǎn)移的90彼此形成一相繞組。3.電壓源轉(zhuǎn)換器電壓源轉(zhuǎn)換器包括一個電源和一個電機轉(zhuǎn)換。它們的三相電供應(yīng)都來自整流電源轉(zhuǎn)換器的400V/50Hz。4.磁通電流法程序的估計轉(zhuǎn)子位置傳感器位置和速度必須適合試駕與18.5千瓦，118Nm和1500r.p.m。它肯定了使用非線性模型的開關(guān)磁阻汽車。一個非常不錯的概要介紹傳感器方法確定轉(zhuǎn)子位置的開關(guān)磁阻汽車是在熱射線。為測試方便，我們選擇磁通電流的方法。5.角度傳感器盡管有良好的結(jié)果估計轉(zhuǎn)子位置，可以改變單一的轉(zhuǎn)子的實際位置。在特定的范圍內(nèi)，通量關(guān)系到較小變化的電流或流量造成更大的變化轉(zhuǎn)子位置。在這些范圍內(nèi)，已經(jīng)測量的較小的不準(zhǔn)確估計