Cov Nyhuv ntawm Iron Core Stress rau Kev Ua Haujlwm ntawmCov Tsav Tsheb Hlau Nkaus Mus Ib Txhis
Kev loj hlob sai ntawm kev lag luam tau txhawb nqa qhov kev lag luam ntawm kev lag luam lub cev muaj zog tas mus li, tso cov kev cai siab dua rau kev ua haujlwm ntawm lub cev muaj zog, cov qauv kev siv tshuab, thiab kev ruaj khov ntawm cov khoom lag luam. Yuav kom cov cav hlau nplaum tas mus li txhim kho hauv thaj chaw siv dav dua, nws yog qhov tsim nyog los txhawb kev ua tau zoo los ntawm txhua yam, kom qhov zoo thiab kev ua tau zoo ntawm lub cev muaj zog tuaj yeem ncav cuag qib siab dua.
Rau cov cav hlau nplaum tas mus li, lub plawv hlau yog ib qho tseem ceeb heev hauv lub cev muaj zog. Rau kev xaiv cov khoom siv hlau, nws yog ib qho tsim nyog los xav txog seb qhov kev sib nqus hluav taws xob puas tuaj yeem ua tau raws li qhov xav tau ua haujlwm ntawm lub cev muaj zog hlau nplaum tas mus li. Feem ntau, Cov hlau hluav taws xob raug xaiv ua cov khoom siv tseem ceeb rau cov cav hlau nplaum tas mus li, thiab qhov laj thawj tseem ceeb yog tias Cov hlau hluav taws xob muaj kev sib nqus hluav taws xob zoo.
Kev xaiv cov khoom siv lub cev muaj zog muaj qhov cuam tshuam tseem ceeb heev rau kev ua haujlwm tag nrho thiab kev tswj tus nqi ntawm cov cav hlau nplaum tas mus li. Thaum lub sijhawm tsim khoom, sib dhos, thiab kev ua haujlwm raug cai ntawm cov cav hlau nplaum tas mus li, qee qhov kev ntxhov siab yuav tsim rau ntawm lub hauv paus. Txawm li cas los xij, qhov muaj kev ntxhov siab yuav cuam tshuam ncaj qha rau qhov kev sib nqus conductivity ntawm Cov Hlau Hluav Taws Xob, ua rau qhov kev sib nqus conductivity poob qis mus rau ntau qib, yog li qhov kev ua tau zoo ntawm lub cev muaj zog hlau nplaum tas mus li yuav poob qis, thiab yuav ua rau lub cev muaj zog poob ntau ntxiv.
Hauv kev tsim thiab tsim cov cav hlau nplaum tas mus li, cov kev cai rau kev xaiv thiab kev siv cov ntaub ntawv tau nce siab dua thiab siab dua, txawm tias ze rau tus qauv txwv thiab qib ntawm kev ua tau zoo ntawm cov khoom siv. Raws li cov khoom siv tseem ceeb ntawm cov cav hlau nplaum tas mus li, Cov hlau hluav taws xob yuav tsum ua tau raws li qhov yuav tsum tau ua kom raug heev hauv cov thev naus laus zis siv thiab kev suav qhov tseeb ntawm kev poob hlau kom tau raws li qhov xav tau tiag tiag.
Txoj kev tsim qauv lub cev muaj zog ib txwm siv los xam cov yam ntxwv electromagnetic ntawm Cov Hlau Hluav Taws Xob yog qhov tseeb tsis raug, vim tias cov txheej txheem ib txwm muaj no feem ntau yog rau cov xwm txheej ib txwm muaj, thiab cov txiaj ntsig ntawm kev xam yuav muaj qhov sib txawv loj. Yog li ntawd, xav tau txoj kev xam tshiab los xam qhov tseeb ntawm cov hlau nplaum conductivity thiab hlau poob ntawm Cov Hlau Hluav Taws Xob nyob rau hauv cov xwm txheej kev ntxhov siab, yog li qib kev siv cov khoom siv hlau tseem ceeb siab dua, thiab cov ntsuas kev ua tau zoo xws li kev ua haujlwm ntawm cov hlau nplaum tas mus li mus txog qib siab dua.
Zheng Yong thiab lwm cov kws tshawb fawb tau tsom mus rau qhov cuam tshuam ntawm kev ntxhov siab ntawm lub hauv paus rau kev ua haujlwm ntawm cov hlau nplaum tas mus li, thiab ua ke kev tshuaj xyuas kev sim los tshawb nrhiav cov txheej txheem cuam tshuam ntawm cov khoom sib nqus ntxhov siab thiab kev ntxhov siab hlau poob kev ua tau zoo ntawm cov khoom siv hlau nplaum tas mus li. Kev ntxhov siab ntawm lub hauv paus hlau ntawm lub cev muaj zog hlau nplaum tas mus li nyob rau hauv cov xwm txheej ua haujlwm yog cuam tshuam los ntawm ntau qhov chaw ntawm kev ntxhov siab, thiab txhua qhov chaw ntawm kev ntxhov siab qhia txog ntau yam khoom sib txawv kiag li.
Los ntawm qhov kev xav ntawm daim ntawv kev ntxhov siab ntawm lub stator core ntawm cov hlau nplaum tas mus li motors, qhov chaw ntawm nws txoj kev tsim muaj xws li xuas nrig ntaus, riveting, lamination, cuam tshuam sib dhos ntawm lub casing, thiab lwm yam. Qhov cuam tshuam kev ntxhov siab los ntawm kev cuam tshuam sib dhos ntawm lub casing muaj qhov cuam tshuam loj tshaj plaws thiab tseem ceeb tshaj plaws. Rau lub rotor ntawm lub hlau nplaum tas mus li motor, qhov chaw tseem ceeb ntawm kev ntxhov siab nws muaj xws li kev ntxhov siab thermal, centrifugal force, electromagnetic force, thiab lwm yam. Piv rau cov motors ib txwm muaj, qhov ceev ib txwm ntawm lub hlau nplaum tas mus li motor yog qhov siab heev, thiab cov qauv sib cais sib nqus kuj tau teeb tsa ntawm lub rotor core.
Yog li ntawd, kev ntxhov siab centrifugal yog qhov tseem ceeb ntawm kev ntxhov siab. Kev ntxhov siab stator core tsim los ntawm kev sib dhos cuam tshuam ntawm lub cev muaj zog tas mus li feem ntau muaj nyob rau hauv daim ntawv ntawm kev ntxhov siab compressive, thiab nws qhov kev ua haujlwm yog concentrated nyob rau hauv lub yoke ntawm lub cev muaj zog stator core, nrog rau kev coj kev ntxhov siab qhia tau tias yog circumferential tangential. Lub zog ntxhov siab tsim los ntawm lub zog centrifugal ntawm lub cev muaj zog tas mus li rotor yog kev ntxhov siab tensile, uas yuav luag ua rau lub hauv paus hlau ntawm lub rotor. Kev ntxhov siab siab tshaj plaws centrifugal ua rau ntawm qhov kev sib tshuam ntawm lub hlau nplaum tas mus li lub cev muaj zog rotor magnetic cais choj thiab lub reinforcing rib, ua rau nws yooj yim rau kev ua haujlwm poob qis hauv thaj chaw no.
Qhov cuam tshuam ntawm Iron Core Stress rau ntawm Magnetic Field ntawm Permanent Magnet Motors
Los ntawm kev tshuaj xyuas qhov kev hloov pauv ntawm qhov ceev ntawm cov khoom tseem ceeb ntawm cov hlau nplaum tas mus li, nws pom tias nyob rau hauv kev cuam tshuam ntawm kev saturation, tsis muaj kev hloov pauv tseem ceeb ntawm qhov ceev ntawm cov hlau nplaum ntawm cov tav txhawb nqa thiab cov choj sib nqus ntawm lub cev muaj zog rotor. Qhov ceev ntawm cov hlau nplaum ntawm stator thiab lub voj voog sib nqus tseem ceeb ntawm lub cev muaj zog sib txawv heev. Qhov no kuj tseem tuaj yeem piav qhia ntxiv txog qhov cuam tshuam ntawm qhov kev ntxhov siab ntawm lub hauv paus ntawm qhov faib ntawm cov hlau nplaum thiab kev coj ua ntawm cov hlau nplaum ntawm lub cev muaj zog thaum lub sijhawm ua haujlwm ntawm lub cev muaj zog tas mus li.
Kev Nyuaj Siab rau Kev Poob ntawm Lub Cev
Vim muaj kev ntxhov siab, qhov kev ntxhov siab ntawm lub yoke ntawm lub stator hlau nplaum tas mus li yuav muaj ntau qhov sib txawv, ua rau muaj kev poob loj thiab kev ua haujlwm poob qis. Muaj teeb meem poob hlau tseem ceeb ntawm lub yoke ntawm lub stator hlau nplaum tas mus li, tshwj xeeb tshaj yog ntawm qhov sib txuas ntawm cov hniav stator thiab yoke, qhov twg qhov kev poob hlau nce ntau tshaj plaws vim muaj kev ntxhov siab. Kev tshawb fawb tau pom los ntawm kev xam tias qhov kev poob hlau ntawm cov hlau nplaum tas mus li tau nce 40% -50% vim muaj kev cuam tshuam ntawm kev ntxhov siab tensile, uas tseem yog qhov xav tsis thoob, yog li ua rau muaj kev nce ntxiv ntawm tag nrho qhov kev poob ntawm cov hlau nplaum tas mus li. Los ntawm kev tshuaj xyuas, nws kuj tuaj yeem pom tias qhov kev poob hlau ntawm lub cev muaj zog yog daim ntawv tseem ceeb ntawm kev poob los ntawm kev cuam tshuam ntawm kev ntxhov siab compressive rau kev tsim ntawm lub stator hlau core. Rau lub cev muaj zog rotor, thaum lub hlau core nyob rau hauv centrifugal tensile kev ntxhov siab thaum lub sijhawm ua haujlwm, tsis yog nws yuav tsis ua rau cov hlau poob ntau ntxiv, tab sis nws tseem yuav muaj qee qhov kev txhim kho zoo.
Cov Nyhuv ntawm Kev Nyuaj Siab rau Inductance thiab Torque
Qhov kev ua tau zoo ntawm lub zog sib nqus ntawm lub cev muaj zog hlau tseem ceeb poob qis nyob rau hauv cov xwm txheej kev ntxhov siab ntawm lub cev muaj zog hlau, thiab nws qhov inductance ntawm lub ncej yuav txo qis rau qee qhov. Tshwj xeeb, kev tshuaj xyuas lub voj voog sib nqus ntawm lub cev muaj zog hlau nplaum tas mus li, lub voj voog sib nqus ntawm lub ncej feem ntau suav nrog peb ntu: qhov sib txawv cua, hlau nplaum tas mus li, thiab lub cev muaj zog stator rotor hlau. Ntawm lawv, hlau nplaum tas mus li yog qhov tseem ceeb tshaj plaws. Raws li qhov laj thawj no, thaum qhov kev ua tau zoo ntawm lub zog sib nqus ntawm lub cev muaj zog hlau nplaum tas mus li hloov pauv, nws tsis tuaj yeem ua rau muaj kev hloov pauv tseem ceeb hauv qhov inductance ntawm lub ncej.
Lub voj voog sib nqus ntawm lub ncej uas muaj qhov sib txawv ntawm huab cua thiab lub stator rotor core ntawm lub cev muaj zog hlau nplaum tas mus li yog me dua li qhov tsis kam sib nqus ntawm lub hlau nplaum tas mus li. Xav txog qhov cuam tshuam ntawm kev ntxhov siab ntawm lub hauv paus, qhov kev ua tau zoo ntawm kev sib nqus induction poob qis thiab qhov inductance ntawm lub ncej txo qis heev. Tshawb xyuas qhov cuam tshuam ntawm cov khoom sib nqus ntxhov siab rau lub hauv paus hlau ntawm lub cev muaj zog hlau nplaum tas mus li. Raws li qhov kev ua tau zoo ntawm kev sib nqus induction ntawm lub cev muaj zog txo qis, qhov sib txuas sib nqus ntawm lub cev muaj zog txo qis, thiab lub zog sib nqus ntawm lub cev muaj zog hlau nplaum tas mus li kuj txo qis.
Lub sijhawm tshaj tawm: Lub Yim Hli-07-2023
