Vim li cas squirrel-cage asynchronous motors xaiv qhov sib sib zog nqus rotors?

Nrog rau qhov nrov ntawm cov khoom siv hluav taws xob sib txawv, qhov teeb meem ntawm lub cev muaj zog tau daws tau yooj yim, tab sis rau cov khoom siv hluav taws xob zoo tib yam, qhov pib ntawm squirrel-cage rotor asynchronous motor yog ib qho teeb meem.Los ntawm kev txheeb xyuas ntawm qhov pib thiab khiav kev ua haujlwm ntawm lub asynchronous lub cev muaj zog, nws tuaj yeem pom tias txhawm rau txhawm rau txhawm rau pib lub zog thiab txo qhov tam sim no thaum pib, lub rotor kuj yuav tsum loj dua;thaum lub cev muaj zog khiav, thiaj li yuav txo tau lub rotor tooj liab noj thiab txhim kho lub cev muaj zog efficiency, rotor kuj yuav tsum tau me me ib txhia;qhov no yog ib qho kev tsis sib haum xeeb.

Cov duab 20230331165703

Rau lub qhov txhab rotor lub cev muaj zog, txij li qhov kev tiv thaiv tuaj yeem txuas nrog hauv koob thaum pib, thiab tom qab ntawd txiav tawm thaum lub sijhawm ua haujlwm, qhov yuav tsum tau ua tau zoo.Txawm li cas los xij, cov qauv ntawm lub qhov txhab asynchronous lub cev muaj zog yog qhov nyuaj, tus nqi siab, thiab kev saib xyuas tsis yooj yim, yog li nws daim ntawv thov raug txwv rau qee yam;Resistors, thaum khiav ntawm lub hom phiaj nrog me me resistors.Sib sib zog nqus qhov thiab ob chav squirrel tawb rotor motors muaj qhov pib ua haujlwm no.Hnub no, Ms. tau koom nrog tham txog qhov sib sib zog nqus rotor lub cev muaj zog.
Sib sib zog nqus qhov asynchronous lub cev muaj zog
Txhawm rau txhim kho cov nyhuv ntawm daim tawv nqaij, qhov zawj ntawm qhov sib sib zog nqus zawj asynchronous lub cev muaj zog rotor yog qhov sib sib zog nqus thiab nqaim, thiab qhov sib piv ntawm qhov tob ntawm qhov zawj dav yog nyob rau hauv thaj tsam ntawm 10-12.Thaum cov tam sim no dhau los ntawm lub rotor bar, qhov sib nqus sib nqus flux sib tshuam nrog hauv qab ntawm lub bar yog ntau tshaj qhov sib tshuam nrog qhov tsis zoo.Yog li ntawd, yog hais tias lub bar tau muab faib los ntawm ob peb me me Yog hais tias cov conductors txuas nyob rau hauv parallel, cov me me conductors nyob ze rau hauv qab ntawm qhov slots muaj ntau dua to reactance, thiab qhov ze rau lub qhov, qhov me dua qhov to reactance.

 

Cov duab 20230331165710

Thaum pib, vim hais tias qhov zaus ntawm lub rotor tam sim no siab heev thiab cov xau reactance loj, qhov kev faib tawm ntawm tam sim no hauv txhua tus neeg xyuas pib me me yuav nyob ntawm qhov xau reactance, thiab qhov loj dua qhov xau reactance, qhov me me ntawm cov xau tam sim no.Nyob rau hauv txoj kev no, nyob rau hauv qhov kev txiav txim ntawm tib lub peev xwm induced los ntawm lub ntsiab sib nqus flux ntawm cov pa sib txawv, qhov ceev tam sim no nyob rau hauv lub bar ze rau hauv qab ntawm lub qhov yuav me me, thiab qhov ze rau lub qhov, qhov ntau dua tam sim no. ceev.
Vim yog cov nyhuv ntawm daim tawv nqaij, tom qab feem ntau ntawm cov tam sim no yog nyem rau sab sauv ntawm cov lus qhia bar, lub luag hauj lwm ntawm cov lus qhia bar nyob rau hauv qab ntawm qhov zawj yog heev me me.Ua tau raws li qhov yuav tsum tau muaj kev tiv thaiv loj thaum pib.Thaum pib lub cev muaj zog thiab lub cev muaj zog ua haujlwm ib txwm, txij li lub rotor tam sim no zaus tsawg heev, qhov to ntawm lub rotor winding yog ntau me dua li cov rotor tsis kam, yog li qhov kev faib tawm ntawm cov tam sim no nyob rau hauv cov lus qhia me me no feem ntau yuav yog. txiav txim siab los ntawm kev tawm tsam.

 

Cov duab 20230331165713

Txij li qhov tsis kam ntawm txhua tus neeg xyuas pib sib npaug sib npaug, qhov tam sim no hauv lub bar yuav sib npaug, yog li cov nyhuv ntawm daim tawv nqaij pib ploj mus, thiab qhov tsis kam ntawm rotor bar ua me me, ze rau DC tsis kam.Nws tuaj yeem pom tau tias cov rotor tsis kam nyob rau hauv ib txwm ua haujlwm yuav cia li txo qis, yog li txaus siab cov txiaj ntsig ntawm kev txo cov tooj liab noj thiab txhim kho kev ua haujlwm.
Cov nyhuv ntawm daim tawv nqaij yog dab tsi?Cov nyhuv ntawm daim tawv nqaij kuj hu ua cov nyhuv ntawm daim tawv nqaij.Thaum cov hloov tam sim no dhau los ntawm tus neeg xyuas pib, qhov tam sim no yuav mloog zoo rau ntawm tus neeg xyuas pib thiab ntws.Qhov tshwm sim no hu ua cov nyhuv ntawm daim tawv nqaij.Thaum tam sim no los yog voltage conductor nyob rau hauv ib tug conductor nrog ntau zaus electrons, lawv yuav sib sau ua ke rau saum npoo ntawm tag nrho cov neeg xyuas pib es tsis txhob muab tusyees faib nyob rau hauv lub cross-sectional cheeb tsam ntawm tag nrho cov neeg xyuas pib.

Cov nyhuv ntawm daim tawv nqaij tsis tsuas yog cuam tshuam rau rotor tsis kam, tab sis kuj cuam tshuam rau rotor to reactance.Los ntawm txoj kev ntawm lub qhov dej ntws tawm, nws tuaj yeem pom tau tias tam sim no dhau los ntawm tus neeg xyuas pib me me tsuas yog tsim cov dej ntws tawm los ntawm tus neeg xyuas pib me me mus rau qhov ntsuas, thiab tsis tsim cov dej ntws tawm los ntawm tus neeg xyuas pib me me mus rau hauv qab ntawm tus neeg xyuas pib. qhov.Vim tias yav tas los tsis muaj kev sib txuas nrog qhov tam sim no.Nyob rau hauv txoj kev no, rau tib qhov loj ntawm qhov tam sim no, qhov ze rau hauv qab ntawm lub qhov, qhov dej xau ntau yuav raug tsim, thiab ze rau qhov qhib qhov qhib, qhov dej ntws tsawg yuav raug tsim.Nws tuaj yeem pom tau tias thaum cov nyhuv ntawm daim tawv nqaij nyem qhov tam sim no hauv qhov bar mus rau qhov thais, qhov sib nqus sib nqus flux tsim los ntawm tib lub sijhawm tam sim no txo ​​qis, yog li lub qhov dej xau reactance txo.Yog li cov nyhuv ntawm daim tawv nqaij ua rau kom cov rotor tsis kam thiab txo cov rotor to reactance.

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Lub zog ntawm cov nyhuv ntawm daim tawv nqaij yog nyob ntawm qhov zaus ntawm lub rotor tam sim no thiab qhov luaj li cas ntawm cov duab ntawm lub qhov.Qhov ntau zaus, qhov sib sib zog nqus ntawm qhov zoo, thiab qhov tseem ceeb ntawm daim tawv nqaij.Tib lub rotor nrog ntau zaus yuav muaj qhov sib txawv ntawm cov nyhuv ntawm daim tawv nqaij, thiab yog li cov rotor tsis tseem yuav txawv.Vim li no, lub rotor kuj thiab to reactance thaum lub sij hawm ib txwm ua hauj lwm thiab pib yuav tsum nruj me ntsis txawv thiab tsis tuaj yeem tsis meej pem.Rau tib zaus, cov nyhuv ntawm daim tawv nqaij ntawm qhov sib sib zog nqus groove rotor muaj zog heev, tab sis cov nyhuv ntawm daim tawv nqaij kuj muaj qee qhov kev cuam tshuam ntawm cov qauv ntawm cov squirrel tawb rotor.Yog li ntawd, txawm rau ib tug squirrel-cage rotor nrog ib tug ntau qauv, lub rotor tsis nyob rau hauv startup thiab kev khiav hauj lwm yuav tsum tau xam cais.

Cov duab 20230331165719

Lub rotor leakage reactance ntawm qhov sib sib zog nqus qhov asynchronous lub cev muaj zog, vim hais tias lub rotor qhov sib sib zog nqus zoo heev, txawm hais tias nws raug txo los ntawm cov nyhuv ntawm daim tawv nqaij, nws tseem loj dua cov squirrel tawb rotor to reactance tom qab txo.Yog li ntawd, lub zog qhov tseem ceeb thiab qhov siab tshaj plaws torque ntawm qhov sib sib zog nqus lub cev muaj zog me ntsis qis dua li ntawm cov squirrel tawb lub cev muaj zog.

Post lub sij hawm: Mar-31-2023