Nrog rau kev nrhiav kev ua haujlwm ntawm lub cev muaj zog, cov rotors kaw-qhov tau maj mam lees paub los ntawm cov tuam txhab tsim khoom siv lub cev muaj zog. Raupeb-theem asynchronous motors, vim muaj cov stator thiab rotor grooves, qhov kev sib hloov yuav tsim kev poob pulsation. Yog tias lub rotor txais yuav qhov kaw qhov, qhov sib txawv ntawm huab cua zoo raug luv dua, thiab qhov sib txawv ntawm huab cua sib txawv magnetic tsis muaj zog, yog li txo qhov muaj peev xwm excitation thiab harmonic magnetic field poob, uas pab txhim kho kev ua haujlwm ntawm lub cev muaj zog.
Qhov kev taw qhia ntawm lub qhov (arch direction) yog ib qho tseem ceeb ntawm lub rotor uas kaw lawm, yog tias muaj hom qhov rotor zoo ib yam, qhov kev xaiv qhov siab ntawm lub qhov choj sib txawv yuav muaj ntau qib sib txawv ntawm kev cuam tshuam rau kev ua haujlwm ntawm lub cev muaj zog. Qhov kaw ntawm lub rotor uas tsis muaj qhov uas pom tsis tau, kev kuaj xyuas qhov huv si yog qhov nyuaj, qhov teeb meem ntawm cov hniav sawtooth uas zais cia yooj yim tshwm sim, ua rau muaj ntau yam tsis tuaj yeem tswj tau.
Kev siv ntawmrotor kaw qhov, thaum txo qhov kev poob ntawm stray thiab hlau siv ntawm lub cev muaj zog, yuav ua rau lub rotor leakage reactance nce ntxiv, ua rau muaj kev txo qis ntawm lub zog fais fab, nce ntxiv hauv stator load tam sim no, nce ntxiv stator poob; pib torque thiab pib tam sim no txo qis, tus nqi tig rov qab nce ntxiv. Yog li ntawd, thaum siv lub qhov kaw, cov kev hloov pauv ntawm ntau yam ntaub ntawv kev ua tau zoo yuav tsum tau txiav txim siab tib lub sijhawm kom ua kom zoo dua qhov kev ua tau zoo ntawm lub cev muaj zog.
Lub tshuab hluav taws xob induction yog dab tsi?
Lub cev muaj zog induction yog hais txog ib hom stator thiab rotor los ntawm electromagnetic induction, inductance tam sim no hauv lub rotor kom ua tiav lub zog hloov pauv electromechanical. Lub stator ntawm lub cev muaj zog induction muaj peb ntu: stator core, stator winding thiab lub rooj zaum. Lub rotor muaj rotor core, rotor winding thiab rotor ncej. Lub rotor core, uas kuj yog ib feem ntawm lub voj voog magnetic tseem ceeb, feem ntau yog ua los ntawm cov ntawv hlau silicon uas muaj qhov tuab ntawm 0.5 hli, thiab lub core yog tsau rau ntawm rotor ncej lossis rotor bracket. Tag nrho lub rotor muaj lub ntsej muag cylindrical.
Lubcov xov hluav taws xob ntawm lub rotorMuaj ob hom: cage thiab wirewound. Nyob rau hauv ib txwm muaj xwm txheej, qhov ceev ntawm lub rotor ntawm lub induction motor yeej ib txwm qis dua lossis siab dua qhov ceev ntawm lub magnetic field tig (synchronous speed), yog li induction motors kuj hu ua "asynchronous motors". Thaum lub load ntawm lub induction motor hloov, qhov ceev ntawm lub rotor thiab qhov sib txawv ntawm kev sib hloov yuav hloov raws li, yog li lub zog hluav taws xob, tam sim no thiab electromagnetic torque hauv lub rotor conductor yuav hloov raws li qhov xav tau ntawm lub load. Raws li qhov zoo lossis tsis zoo ntawm kev sib hloov thiab qhov loj ntawm lub induction motor, muaj peb hom kev ua haujlwm: lub cev muaj zog, generator thiab electromagnetic nres.
Lub sijhawm tshaj tawm: Lub Rau Hli-24-2024