Cov khoom tseem ceeb ntawm cov khoom siv hlau nplaum tas li
(1) Lub cev muaj zog ntawm qhov tob hlau. Qhov sib nqus ntawm qhov sib nqus ntawm cov khoom siv hlau nplaum thaum cov khoom siv hlau nplaum tas li yog magnetized rau qhov sib txawv ntawm cov hlau nplaum sab nraud thiab thaum tawm sab nraud magnetic field yog xoom. Cov ntaub ntawv ntawm qhov ntsuas no qhia ncaj qha ntsig txog qhov sib txawv ntawm qhov sib txawv ntawm cov pa taws hauv lub tshuab. Qhov siab tshaj qhov sib txawv ntawm qhov sib nqus, qhov ntau dua cov huab cua sib txawv ntawm qhov sib tw ntawm lub cav yuav tsum yog. Lub ntsiab indexes ntawm lub cev xws li lub zog qhov tob thiab lub sab nraud EMF coefficient yuav ncav cuag tus nqi siab. Cov kev sib raug zoo ntawm qhov fais fab thiab lub cav nqaj hlau ntawm lub cav yuav yog qhov tsim nyog. Yuav kom ua tiav qhov zoo tshaj plaws.
(2) Quab yuam Hc, (magnetic induction coercive quab yuam Hcb). Cov nrhaub sab nraud ntawm lub zog yuav tsum muaj rau cov khoom siv hlau nplaum tas li hauv cov xaim hluav taws xob thaum magnetization qhov residual magnetic induction Br nqes mus rau xoom. Qhov kev ntsuas no muaj feem xyuam nrog kev tiv thaiv kev ua kom lub cev tsis muaj zog, uas yog, qhov sib txawv tshaj tawm thiab cov huab cua sib txawv loj heev. Qhov loj dua tus Hc tus nqi yog, qhov muaj zog ntawm cov cuab yeej los tiv thaiv kev ua haujlwm, thiab qhov loj tshaj qhov sib npaug yog, qhov muaj zog qhov adaptability rau dynamic dynamic ua haujlwm ua haujlwm. Nyob rau tib lub sijhawm, lub dav hlau sib nqus magnetic ceev ntawm lub cev yuav tau kho.
(3) Maximum sib nqus zog khoom BHmax. Qhov siab tshaj plaws ntawm magnetic field zog yog muab los ntawm cov khoom siv hlau nplaum mus rau sab nraud hlau nplaum. Qhov Performance index no ncaj nraim ntsig txog qhov nyiaj ntawm cov khoom siv hlau nplaum tas li hauv lub tshuab. Qhov loj tshaj BHmax, ntau dua qhov sib txawv ntawm lub tshuab hluav taws xob uas muab los ntawm cov khoom siv hlau npliag (permanent magnetic material) rau lwm qhov sib nqus, uas yog, cov khoom siv hlau txuas ntxiv uas siv nyob rau hauv lub cev muaj zog tib lub zog. tsawg dua.
(4) Intrinsic coercivity Hci. Qhov kev ntsuas no yog hais txog tus nqi ntawm lub dag zog ntawm lub zog thaum lub qhov txhab Merv residue M poob rau xoom. Qhov sib piv Hcb tus nqi thaum B = 0 ntawm qhov nkhaus ntawm qhov txhais tau tias tsuas yog cov cuab yeej txuas mus tsis tau lub zog rau sab nraud hluavtaws thaum lub sij hawm no, thiab tsis txhais tau hais tias lub tuam txhab ib txwm tsis muaj lub zog. Txawm li cas los xij, thaum M = 0, tus nqi Hci sib piv qhia tau hais tias cov hlau nplaum tas li lawm tiag tiag, thiab nws tsis muaj kev sib txig sib nqus. Txawm hais tias Hci tsis ncaj nraim ntsig txog qhov chaw ua hauj lwm ntawm lub cav, nws yog qhov tseeb quab yuam ntawm cov khoom siv mus tas li, uas yog nruab nrab ntawm lub peev xwm ntawm cov khoom siv hlau ruaj khov ua kom muaj magnetic field energy thiab anti-demagnetization. Qhov loj ntawm lub intrinsic coercivity yog nyob ze rau qhov kub thiab txias ntawm cov khoom siv hlau nplaum tas li. Qhov siab zog ntawm sab hauv lub cev, qhov siab zog ntawm kev khiav hauj lwm kub ntawm cov khoom siv tas mus li.
(5) Kub coefficient α. Kub yog ib yam ntawm cov ntsiab lus tseem ceeb uas cuam tshuam cov khoom sib nqus ntawm cov khoom ntiag tug uas nyob ruaj khov. Qhov feem pua ntawm cov kev hloov hauv kev sib hloov hauv cov khoom sib nqus thaum qhov kub hloov ntawm 1 ° C yog hu ua qhov ntsuas kub ntawm cov khoom sib nqus. Qhov kub coefficient tau muab faib ua cov seem magnetic induction temperature coefficient thiab coercive coefficient coercion. Qhov Performance index no muaj kev txhawb zog rau kev ua tau zoo ntawm kev tsav tsheb. Qhov ntau dua qhov kub thiab txias, qhov ntau dua qhov hloov ntawm qhov Performance index thaum lub cav khiav los ntawm txias mus rau kub, uas ncaj qha txwv cov kev khiav hauj lwm qhov kub ntawm lub tshuab. Indirectly cuam tshuam lub hwj chim kom ntim piv ntawm lub cev.
2 phom sij khov thiab cov nta
Qhov siab tshaj plaws lub zog nyob rau hauv lub sab saum toj hlau nplhaib tau mus txog 1000kW, qhov tsawg kawg nkaus diam
Φ0.8 hli, qhov siab tshaj plaws yog 300000r / min, thiab qhov qis tshaj yog 0.01 r / min. Muab piv txwv nrog hluav taws xob excitation lub cev, lub tshuab hlau nplaum tas li muaj cov yam ntxwv nram qab no.
2.1 Cov qauv yooj yim thiab kev ntseeg siab
Exciting nrog cov khoom siv hlau ruaj khov, cov tho ncej thiab qhov exciting kauj rau kev siv dag zog hauv cov thawj lub cav hluav taws xob tuaj yeem hloov los ntawm ib lossis ntau ntau cov hlau nplaum, thiab qhov ntau tsawg dua qhov txo, uas yog qhov yooj yim heev hauv cov qauv. Nyob rau tib lub sijhawm, txij li thaum lub nplhaib thiab qhov txhuam kom tsis muaj zog, qhov kev ua haujlwm ntawm kev tsav tsheb zoo tuaj, thiab qhov kev ua haujlwm ntawm kev tsav tsheb zoo heev, thiab lub neej nce.
