Thaum lub cev muaj zog hloov hluav taws xob rau hauv lub tshuab hluav taws xob, nws kuj poob ib feem ntawm lub zog nws tus kheej.Feem ntau, qhov poob ntawm lub cev muaj zog tuaj yeem muab faib ua peb ntu: qhov sib txawv ntawm qhov poob, qhov poob ruaj khov thiab poob poob.

1. Kev poob qis sib txawv nrog kev thauj khoom, suav nrog stator tsis kam (tooj liab), rotor tsis kam thiab txhuam tsis kam.

2. Kev poob ruaj yog ywj siab ntawm kev thauj khoom, suav nrog cov tub ntxhais poob thiab cov khoom siv tsis zoo.Cov hlau poob yog tsim los ntawm hysteresis poob thiab eddy tam sim no poob, uas yog proportional rau lub square ntawm qhov voltage, thiab hysteresis poob kuj inversely proportional rau zaus.

3. Lwm qhov kev poob qis yog kev puas tsuaj thiab lwm yam kev puas tsuaj, nrog rau kev sib txhuam ntawm cov bearings thiab cua tsis kam los ntawm kev sib hloov ntawm cov kiv cua thiab rotors.

Motor Loss Classification

Muaj ntau yam kev ntsuas kom txo tau lub cev muaj zog

1 Stator poob

Cov txheej txheem tseem ceeb los txo qhov I^2R poob ntawm lub cev muaj zog stator yog:

1. Ua kom qhov chaw hla ntu ntawm lub stator slot.Nyob rau hauv tib txoj kab uas hla ntawm lub stator, nce qhov chaw hla ntawm lub stator slot yuav txo qhov sib nqus Circuit Court cheeb tsam thiab ua kom cov hlau nplaum ntawm cov hniav.

2. Ua kom tag nrho qhov sib piv ntawm cov stator slots, uas yog qhov zoo dua rau cov motors me me.Siv qhov zoo tshaj plaws winding thiab rwb thaiv tsev loj thiab loj hlau hla-sectional cheeb tsam yuav ua rau kom tag nrho qhov sib piv ntawm stator.

3. Sim txo qhov ntev ntawm stator winding kawg.Qhov poob ntawm stator winding kawg tso nyiaj rau 1/4 txog 1/2 ntawm tag nrho cov winding poob.Txo qhov ntev ntawm qhov winding kawg tuaj yeem txhim kho kev ua haujlwm ntawm lub cev muaj zog.Cov kev sim qhia tau hais tias qhov kawg ntev yog txo los ntawm 20% thiab qhov poob yog txo los ntawm 10%.

2 Rotor poob

Qhov I^2R poob ntawm lub cev muaj zog rotor feem ntau cuam tshuam nrog lub rotor tam sim no thiab rotor tsis kam.Cov txheej txheem txuag hluav taws xob sib raug yog raws li hauv qab no:

1. Txo cov rotor tam sim no, uas tuaj yeem txiav txim siab txog qhov nce ntawm qhov hluav taws xob thiab lub zog ntawm lub cev muaj zog.

2. Ua kom qhov chaw hla ntu ntawm lub rotor qhov.

3. Txo qhov kev tiv thaiv ntawm lub rotor winding, xws li siv cov xov hlau tuab thiab cov khoom siv uas tsis muaj kev tiv thaiv, uas yog qhov tseem ceeb rau cov motors me me, vim tias cov motors me feem ntau yog cam khwb cia txhuas rotors, yog cam khwb cia tooj liab rotors siv, tag nrho cov poob ntawm cov lub cev muaj zog tuaj yeem raug txo los ntawm 10% ~ 15%, tab sis niaj hnub no cam khwb cia tooj liab rotor yuav tsum muaj qhov kub thiab txias thiab cov tshuab tseem tsis tau nrov, thiab nws cov nqi yog 15% mus rau 20% siab dua li ntawm cam khwb cia txhuas rotor.

3 Core poob

Cov hlau poob ntawm lub cev muaj zog tuaj yeem raug txo los ntawm kev ntsuas hauv qab no:

1. Txo cov qhov sib nqus thiab nce qhov ntev ntawm cov hlau core los txo cov sib nqus flux ntom, tab sis cov npaum li cas cov roj ua kom haum raws li.

2. Txo cov thickness ntawm cov ntawv hlau kom txo tau qhov poob ntawm qhov induced tam sim no.Piv txwv li, hloov cov ntawv kub-dov silicon steel ntawv nrog cov ntawv txias-dov silicon steel tuaj yeem txo cov thickness ntawm silicon steel ntawv, tab sis cov ntawv nyias nyias yuav ua rau cov ntawv hlau ntau ntxiv thiab cov nqi tsim khoom ntawm lub cev muaj zog.

3. Siv cov ntawv txias-dov silicon steel nrog zoo sib nqus permeability kom txo tau hysteresis poob.

4. Txais kev ua haujlwm siab hlau nti rwb thaiv tsev txheej.

5. Kev kho cua sov thiab kev tsim khoom siv tshuab, qhov seem ntawm kev ntxhov siab tom qab ua tiav cov tub ntxhais hlau yuav cuam tshuam rau lub cev tsis muaj zog.Thaum ua cov ntawv silicon steel, cov kev taw qhia txiav thiab xuas nrig ntaus shear kev nyuaj siab muaj kev cuam tshuam ntau dua rau cov tub ntxhais poob.Txiav raws cov kev taw qhia dov ntawm silicon steel ntawv thiab kev kho cua sov ntawm silicon steel punching ntawv tuaj yeem txo qhov poob los ntawm 10% mus rau 20%.

4 Txoj kev poob

Niaj hnub no, kev nkag siab ntawm lub cev muaj zog stray poob tseem nyob rau hauv kev tshawb fawb theem.Qee txoj hauv kev tseem ceeb los txo qis kev poob qis niaj hnub no yog:

1. Siv cov kev kho cua sov thiab ua kom tiav kom txo qhov luv luv ntawm lub rotor nto.

2. Kev kho rwb thaiv tsev nyob rau sab hauv ntawm lub rotor qhov.

3. Txo kev sib haum xeeb los ntawm kev txhim kho stator winding tsim.

4. Txhim kho tus qauv tsim ntawm rotor qhov sib koom ua ke thiab txo qis kev sib haum xeeb, nce stator thiab rotor cogging, tsim lub rotor qhov zoo li inclined slots, thiab siv series-txuas sinusoidal windings, tawg windings thiab luv luv windings kom txo tau high-order harmonics. ;Siv cov hlau nplaum qhov av nkos los yog cov kab hlau nplaum sib nqus los hloov cov tsoos insulating qhov wedge thiab sau lub qhov ntawm lub cev muaj zog stator hlau core nrog hlau nplaum qhov av nkos yog ib txoj hauv kev zoo los txo qis kev poob ntxiv.

5 cua kev sib txhuam poob

Cov cua kev sib txhuam poob nyiaj txog li 25% ntawm tag nrho cov kev poob ntawm lub cev muaj zog, uas yuav tsum tau muab kev saib xyuas.Kev sib txhuam poob feem ntau yog tshwm sim los ntawm cov kabmob thiab cov ntsaws ruaj ruaj, uas tuaj yeem txo tau los ntawm kev ntsuas hauv qab no:

1. Txo qhov loj ntawm cov ncej, tab sis ua tau raws li qhov yuav tsum tau ua ntawm cov zis torque thiab rotor dynamics.

2. Siv cov kabmob ua haujlwm siab.

3. Siv cov txheej txheem lubrication zoo thiab cov roj nplua nyeem.

4. Txais cov tshuab sealing siab heev.

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Post lub sij hawm: Jun-22-2022