Lub cev muaj zog sib nqus tas mus lis (PMMs) tau txais kev saib xyuas dav dav hauv ntau daim ntawv thov vim lawv qhov ua tau zoo dua piv rau cov qauv ib txwm muajpeb theem asynchronous induction motors. Ib qho ntawm cov yam tseem ceeb rau kev ua haujlwm zoo dua yog nyob rau hauv cov yam ntxwv tshwj xeeb ntawm PMMs, tshwj xeeb tshaj yog nyob rau hauv cov xwm txheej ua haujlwm ib txwm muaj.
Lub cev muaj zog sib nqus tas mus li muaj peb lub ntsiab lus tseem ceeb: lub stator, lub rotor, thiab lub tsev. Zoo ib yam li tus qauvpeb theem AC induction motors, lub stator core yog tsim los ua ib qho qauv laminated kom txo cov hlau poob los ntawm eddy tam sim no thiab hysteresis cov teebmeem thaum lub sijhawm ua haujlwm ntawm lub cev muaj zog. Lub winding feem ntau yog peb-theem symmetrical qauv, txawm hais tias qhov kev xaiv parameter txawv ntau heev. Lub rotor ib feem muaj nyob rau hauv ntau yam daim ntawv, suav nrog cov hlau nplaum tas mus li rotors nrog pib squirrel cages thiab embedded lossis surface-mounted ntshiab magnet rotors. Lub rotor core tuaj yeem tsim ua ib qho qauv khov kho lossis laminated. Lub rotor yog nruab nrog cov khoom siv hlau nplaum tas mus li, uas feem ntau hu ua hlau nplaum.
Rau lub cev muaj zog hlau nplaum tas mus li, cov teb rotor thiab stator sib dhos ua ke. Qhov kev ua haujlwm sib dhos no txhais tau tias lub rotor tig ntawm tib qhov ceev li lub teb hlau nplaum tig uas tsim los ntawm stator. Yog li ntawd, tsis muaj hluav taws xob induced hauv seem rotor. Qhov tsis muaj hluav taws xob induced no yog qhov tseem ceeb vim nws tshem tawm ntau hom kev poob zog uas feem ntau muaj nyob rau hauv lwm hom lub cev muaj zog.
Ntxiv mus, cov khoom siv rotor raug rau hysteresis thiab eddy tam sim no poob thaum nws teb rau qhov hloov pauv magnetic teb. Qhov sib piv, cov hlau nplaum tas mus li (PMMs) qhia txog kev poob tsawg kawg nkaus vim tsis muaj hysteresis thiab eddy current effects. Lub rotor yog tsim los ntawm cov hlau nplaum tas mus li, uas tsim lub teb magnetic yam tsis tas yuav muaj tam sim no sab nraud, yog li ntawd zam kev poob thiab cua sov. Ntxiv mus, kev txo qis ntawm kev poob rotor ua rau PMMs ua haujlwm ntawm kev ua haujlwm siab, feem ntau tshaj 90%. Qhov kev ua haujlwm zoo dua no txhais tau tias kev siv hluav taws xob tsawg dua, cov nqi ua haujlwm qis dua, thiab kev tsim cua sov tsawg dua, uas tuaj yeem ua rau lub cev muaj zog thiab nws cov khoom siv ntev dua. Hauv kev xaus, kev ua haujlwm sib xws ntawm rotor thiab stator teb hauv lub cev muaj zog tas mus li tshem tawm cov tam sim no thiab kev poob cuam tshuam, ua rau nws ua haujlwm tau zoo dua li lub cev muaj zog induction. Qhov kev ua haujlwm zoo no tsis yog tsuas yog txhim kho kev ua tau zoo xwb, tab sis kuj pab txhawb kev txuag hluav taws xob thiab kev ruaj khov hauv ntau yam kev siv hauv kev lag luam.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-26-2024