Vim li cas cov hlau nplaum ruaj khov synchronous motors dhau los ua lub ntsiab tsav tsav?
Lub tshuab hluav taws xob tuaj yeem hloov hluav taws xob hluav taws xob mus rau hauv lub tshuab hluav taws xob, thiab hloov lub zog hluav taws xob mus rau lub log los ntawm kev sib kis los ntawm kev tsav tsheb.Nws yog ib qho ntawm cov tseem ceeb tsav tsheb ntawm lub zog tshiab.Tam sim no, cov tsav tsheb uas nquag siv hauv lub tsheb tshiab yog cov hlau nplaum ruaj khov synchronous motors thiab AC asynchronous motors.Feem ntau lub zog tshiab tsheb siv cov hlau nplaum ruaj khov synchronous motors.Cov tuam txhab tsheb sawv cev suav nrog BYD, Li Auto, thiab lwm yam. Qee lub tsheb siv AC asynchronous motors.Electric motors sawv cev rau cov tuam txhab tsheb xws li Tesla thiab Mercedes-Benz.
Lub cev muaj zog asynchronous feem ntau yog tsim los ntawm ib qho chaw ruaj khov stator thiab lub rotating rotor.Thaum lub stator winding txuas nrog AC fais fab mov, lub rotor yuav tig thiab tso zis zog.Lub hauv paus ntsiab lus tseem ceeb yog tias thaum lub stator winding yog lub zog (alternating tam sim no), nws yuav tsim lub teb electromagnetic teb, thiab lub rotor winding yog ib tug kaw neeg xyuas pib uas tsis tu ncua txiav lub stator lub magnetic induction kab nyob rau hauv lub stator rotating magnetic teb.Raws li Faraday txoj cai, thaum ib tug kaw neeg xyuas pib txiav cov magnetic induction kab, ib tug tam sim no yuav generated, thiab tam sim no yuav tsim ib tug electromagnetic teb.Lub sijhawm no, muaj ob qhov chaw electromagnetic: ib qho yog stator electromagnetic teb txuas nrog rau sab nraud alternating tam sim no, thiab lwm yam yog tsim los ntawm kev txiav cov stator electromagnetic induction kab.Rotor electromagnetic teb.Raws li Lenz txoj cai, qhov induced tam sim no yeej ib txwm tiv qhov ua rau ntawm induced tam sim no, uas yog, sim tiv thaiv cov conductors ntawm lub rotor los ntawm kev txiav cov magnetic induction kab ntawm lub stator rotating magnetic teb.Qhov tshwm sim yog: tus neeg xyuas pib ntawm lub rotor yuav "ntim" nrog lub stator Lub rotating electromagnetic teb txhais tau hais tias lub rotor chases lub rotating magnetic teb ntawm stator, thiab thaum kawg lub cev muaj zog pib tig.Thaum lub sijhawm ua haujlwm, qhov kev sib hloov ceev ntawm lub rotor (n2) thiab kev sib hloov ceev ntawm stator (n1) tsis sib xws (qhov sib txawv ntawm qhov ceev yog li 2-6%).Yog li ntawd, nws yog hu ua asynchronous AC lub cev muaj zog.Ntawm qhov tsis sib xws, yog tias qhov kev sib hloov ceev yog tib yam, nws yog hu ua synchronous motor.
Cov hlau nplaum ruaj khov synchronous lub cev muaj zog kuj yog hom AC lub cev muaj zog.Nws rotor yog ua los ntawm cov hlau nrog cov hlau nplaum ruaj khov.Thaum lub cev muaj zog ua hauj lwm, lub stator yog energized los tsim ib tug rotating magnetic teb los thawb lub rotor tig."Synchronization" txhais tau hais tias kev sib hloov ntawm lub rotor thaum lub sijhawm ua haujlwm tsis tu ncua Cov kev ceev yog synchronized nrog kev sib hloov ceev ntawm cov hlau nplaum.Cov hlau nplaum tas mus li synchronous motors muaj lub zog-rau-qhov hnyav dua piv, yog qhov me me, sib dua hauv qhov hnyav, muaj qhov tso zis ntau dua, thiab muaj kev txwv ceev thiab kev ua haujlwm braking.Yog li ntawd, cov hlau nplaum ruaj khov synchronous motors tau dhau los ua lub tsheb siv hluav taws xob tshaj plaws niaj hnub no.ntawm electric motor.Txawm li cas los xij, thaum cov khoom siv hlau nplaum tas mus li raug kev co, qhov kub thiab txias tshaj tam sim no, nws cov hlau nplaum permeability yuav txo qis, lossis demagnetization yuav tshwm sim, uas yuav txo tau qhov kev ua tau zoo ntawm cov hlau nplaum ruaj khov.Tsis tas li ntawd, lub ntiaj teb tsis tshua muaj cov hlau nplaum ruaj khov synchronous motors siv cov ntaub ntawv tsawg hauv ntiaj teb, thiab cov nqi tsim khoom tsis ruaj khov.
Piv nrog cov hlau nplaum ruaj khov synchronous motors, asynchronous motors yuav tsum nqus hluav taws xob rau kev ua haujlwm thaum ua haujlwm, uas yuav siv hluav taws xob thiab txo qhov ua haujlwm ntawm lub cev muaj zog.Cov hlau nplaum tas mus li yog kim dua vim qhov sib ntxiv ntawm cov hlau nplaum tas mus li.
Cov qauv uas xaiv AC asynchronous motors nyiam muab qhov tseem ceeb rau kev ua tau zoo thiab ua kom zoo dua ntawm kev ua tau zoo thiab kev ua tau zoo ntawm AC asynchronous motors ntawm kev kub ceev.Tus neeg sawv cev qauv yog tus qauv thaum ntxov S. Cov yam ntxwv tseem ceeb: Thaum lub tsheb tsav tsheb ntawm kev kub ceev, nws tuaj yeem tswj xyuas kev ua haujlwm siab thiab kev siv hluav taws xob zoo, txo kev siv hluav taws xob thaum tswj lub zog siab tshaj plaws;
Cov qauv uas xaiv cov hlau nplaum ruaj khov synchronous motors nyiam qhov tseem ceeb ntawm kev siv hluav taws xob thiab siv cov khoom siv hluav taws xob thiab kev ua haujlwm zoo ntawm cov hlau nplaum ruaj khov synchronous motors ntawm qhov nrawm, ua rau lawv haum rau cov tsheb me thiab nruab nrab.Nws cov yam ntxwv yog me me, lub teeb yuag, thiab ntev roj teeb lub neej.Nyob rau tib lub sijhawm, nws muaj kev tswj hwm kev ua tau zoo thiab tuaj yeem tswj tau qhov ua tau zoo thaum ntsib nrog rov pib, nres, accelerations thiab decelerations.
Cov hlau nplaum tas mus li synchronous motors dominate.Raws li kev txheeb cais los ntawm "Tshiab Zog Tsheb Kev Lag Luam Chain Lub Hlis Database" tso tawm los ntawm Advanced Industry Research Institute (GGII), lub zog tsim hluav taws xob hauv tsev ntawm lub zog tshiab tsav lub cev muaj zog txij lub Ib Hlis mus txog Lub Yim Hli 2022 yog kwv yees li 3.478 lab units, ib xyoos ib zaug. - xyoo nce ntawm 101%.Ntawm lawv, lub peev xwm txhim kho ntawm cov hlau nplaum ruaj khov synchronous motors yog 3.329 lab units, ib xyoos ib zaug nce ntawm 106%;lub peev xwm nruab ntawm AC asynchronous motors yog 1.295 lab units, ib xyoos ib zaug nce ntawm 22%.
Cov hlau nplaum tas mus li synchronous motors tau dhau los ua lub ntsiab tsav tsheb hauv lub khw muag khoom hluav taws xob ntshiab.
Kev txiav txim los ntawm kev xaiv cov motors rau cov qauv tseem ceeb hauv tsev thiab txawv teb chaws, lub zog tshiab tsheb pib los ntawm domestic SAIC Motor, Geely Automobile, Guangzhou Automobile, BAIC Motor, Denza Motors, thiab lwm yam tag nrho siv cov hlau nplaum ruaj khov synchronous motors.Cov hlau nplaum ruaj khov synchronous motors yog siv nyob rau hauv Suav teb.Ua ntej, vim tias cov hlau nplaum ruaj khov synchronous motors muaj kev ua haujlwm qis qis thiab kev hloov pauv siab, uas tsim nyog rau kev ua haujlwm nyuaj nrog nquag pib thiab nres hauv nroog tsheb.Thib ob, vim yog neodymium hlau boron cov hlau nplaum ruaj khov hauv cov hlau nplaum ruaj khov synchronous motors.Cov ntaub ntawv xav tau kev siv cov peev txheej hauv ntiaj teb tsis tshua muaj, thiab kuv lub teb chaws muaj 70% ntawm lub ntiaj teb cov khoom siv tsawg hauv ntiaj teb, thiab tag nrho cov khoom siv hlau nplaum NdFeB nce mus txog 80% ntawm lub ntiaj teb, yog li Tuam Tshoj tau mob siab rau siv cov hlau nplaum ruaj khov synchronous motors.
Txawv teb chaws Tesla thiab BMW siv cov hlau nplaum ruaj khov synchronous motors thiab AC asynchronous motors los tsim kev sib koom tes.Los ntawm kev xav ntawm daim ntawv thov qauv, cov hlau nplaum ruaj khov synchronous lub cev muaj zog yog qhov kev xaiv tseem ceeb rau lub zog tshiab.
Tus nqi ntawm cov khoom siv hlau nplaum ruaj khov suav txog li 30% ntawm tus nqi ntawm cov hlau nplaum ruaj khov synchronous motors.Cov khoom siv raw rau kev tsim cov hlau nplaum ruaj khov synchronous motors feem ntau suav nrog neodymium hlau boron, silicon steel nplooj ntawv, tooj liab thiab txhuas.Ntawm lawv, cov khoom siv hlau nplaum ruaj khov neodymium hlau boron feem ntau yog siv los ua cov hlau nplaum ruaj khov, thiab cov nqi sib xyaw yog li 30%;silicon steel los xij yog siv los ua customized Tus nqi ntawm cov rotor core yog li 20%;tus nqi ntawm cov stator winding yog li ntawm 15%;tus nqi muaj pes tsawg leeg ntawm lub cev muaj zog yog li 5%;thiab tus nqi muaj pes tsawg leeg ntawm lub cev muaj zog yog li 15%.
Yog vim li casOSG ruaj khov hlau nplaum motors ntsia hlau cua compressorsiv tau ntau dua?
Cov hlau nplaum ruaj khov synchronous lub cev muaj zog yog tsim los ntawm stator, rotor thiab plhaub Cheebtsam.Zoo li cov AC motors zoo tib yam, cov tub ntxhais stator muaj cov qauv laminated los txo cov hlau poob vim yog qhov cuam tshuam tam sim no thiab hysteresis thaum lub cev muaj zog khiav;cov windings kuj feem ntau yog peb-theem symmetrical qauv, tab sis qhov kev xaiv parameter txawv heev.Lub rotor ib feem muaj ntau yam ntaub ntawv, nrog rau ib tug mus tas li hlau nplaum rotor nrog ib tug pib squirrel tawb, thiab ib tug embedded los yog nto-mounted ntshiab hlau nplaum rotor.Lub rotor core tuaj yeem ua rau hauv cov qauv khoom lossis laminated.Lub rotor yog nruab nrog cov khoom siv hlau nplaum ruaj khov, uas feem ntau hu ua hlau nplaum.
Nyob rau hauv ib txwm ua haujlwm ntawm lub tshuab hlau nplaum tas mus li, rotor thiab stator magnetic teb yog nyob rau hauv lub xeev synchronous.Tsis muaj qhov induced tam sim no nyob rau hauv lub rotor ib feem, thiab tsis muaj rotor tooj liab poob, hysteresis, los yog eddy tam sim no poob.Tsis tas yuav xav txog qhov teeb meem ntawm rotor poob thiab cua sov.Feem ntau, cov hlau nplaum tas mus li lub cev muaj zog yog siv los ntawm qhov tshwj xeeb zaus hloov pauv thiab ib txwm muaj qhov pib muag muag.Tsis tas li ntawd, cov hlau nplaum ruaj khov lub cev muaj zog yog lub cev muaj zog synchronous, uas muaj cov yam ntxwv ntawm kev hloov kho lub zog los ntawm kev siv zog ntawm excitation, yog li lub zog tseem ceeb tuaj yeem tsim rau tus nqi teev.
Los ntawm qhov pib ntawm qhov pom, vim qhov tseeb tias lub tshuab hluav taws xob ruaj khov yog pib los ntawm qhov sib txawv ntawm lub zog siv hluav taws xob lossis lub zog txhawb nqa inverter, cov txheej txheem pib ntawm lub tshuab hlau nplaum ruaj khov yog yooj yim heev;nws zoo ib yam li qhov pib ntawm lub cev muaj zog sib txawv, thiab zam qhov pib qhov tsis xws luag ntawm lub tawb asynchronous motors.
Hauv luv luv, qhov ua tau zoo thiab lub zog ntawm cov hlau nplaum ruaj khov tuaj yeem ncav cuag siab heev, cov qauv yooj yim heev, thiab kev ua lag luam tau kub heev hauv kaum xyoo dhau los.
Txawm li cas los xij, kev poob ntawm excitation tsis ua haujlwm yog ib qho teeb meem uas tsis tuaj yeem zam tau hauv cov hlau nplaum ruaj khov.Thaum qhov tam sim no loj dhau los yog qhov kub thiab txias dhau lawm, qhov kub ntawm lub cav windings yuav nce sai sai, tam sim no yuav nce sharply, thiab cov hlau nplaum ruaj khov yuav sai sai poob excitation.Hauv kev tswj xyuas lub cev muaj zog ruaj khov, ib qho khoom siv tiv thaiv tam sim no tau teeb tsa kom tsis txhob muaj teeb meem ntawm lub cev muaj zog stator winding raug hlawv, tab sis qhov ua rau poob ntawm excitation thiab cov cuab yeej kaw yog inevitable.
Post lub sij hawm: Dec-12-2023
