Isiphoso sesigaba ukuya kwisigaba sisiphoso sombane esikhethekileyo kwi-motor-phase motor windings. Ukususela kwizibalo zeemoto eziphosakeleyo, kunokufunyanwa ukuba ngokubhekiselele kwiimpazamo zesigaba ukuya kwisigaba, iingxaki zeemoto ezimbini zeepoleni zigxininiswe, kwaye ezininzi zazo zenzeka ekupheleni kwee-windings.

Ukusuka ekusasazweni kweekhoyili zokujija iimoto, ixesha leekhoyili zokujija iipali ezimbini likhulu ngokwentelekiso, kwaye ukumila kwesiphelo kuyingxaki enkulu kwinkqubo yokufakela ucingo. Ngaphezu koko, kunzima ukulungisa i-insulation phase-to-phase kunye nokubopha i-windings, kunye ne-phase-to-phase-insulation displacement iyakwazi ukwenzeka. umbuzo.

Ngexesha lenkqubo yokuvelisa, abavelisi beemoto ezisemgangathweni baya kukhangela iimpazamo zesigaba ukuya kwisigaba ngokusebenzisa indlela yokumelana nombane, kodwa imeko elinganiselweyo yokuqhekeka ayinakufunyanwa ngexesha lokuhlolwa kokusebenza kwe-winding kunye novavanyo lokungabikho komthwalo. Iingxaki ezinjalo zinokuthi zenzeke Kwenzeka xa i-motor isebenza phantsi komthwalo.

Uvavanyo lomthwalo wemoto luhlobo lovavanyo lohlobo, kwaye kuphela uvavanyo olungenamthwalo lwenziwa ngexesha lovavanyo lwefektri, enye yezizathu zokuba i-motor ihambe ngeengxaki. Nangona kunjalo, kwimbono yokulawulwa komgangatho wokuvelisa, kufuneka siqale ngokumisela inkqubo, ukunciphisa kunye nokuphelisa imisebenzi embi, kwaye sithathe amanyathelo ayimfuneko okuqiniswa kweentlobo ezahlukeneyo zokujija.

Inani leeperi zepali zemoto

Iseti nganye yeekhoyili zenqanaba lesithathu le-AC motor iya kuvelisa izibonda zemagneti ze-N kunye ne-S, kwaye inani leepali zemagnethi eziqulethwe kwinqanaba ngalinye lemoto nganye linani leepali. Ekubeni iipali zemagneti zivela ngababini, i-motor ine-2, 4, 6, 8 ... iipali.

Xa kukho ikhoyili enye kuphela kwisigaba ngasinye ukujikajika kwezigaba A, B, kunye C, nto leyo ngokulinganayo kwaye symmetrically isasazwe kwisangqa, utshintsho lwangoku kube kanye, kwaye intsimi kazibuthe ejikelezayo ijika kanye, nto leyo iperi yezibonda. Ukuba isigaba ngasinye se-A, B, kunye ne-C sesigaba sesithathu somoya siqulunqwe ngeekhoyili ezimbini kwi-series, kwaye ubude be-coil nganye yi-1/4 isangqa, ngoko i-composite magnetic field esekwe yinqanaba lesithathu langoku isajikeleza. intsimi yamagnetic, kunye notshintsho lwangoku kanye, intsimi yamagnetic ejikelezayo ijika kuphela i-1/2 ukujika, okuyi-2 izibini zezibonda. Ngokufanayo, ukuba i-windings ihlelwe ngokwemigaqo ethile, i-3 pairs of poles, i-4 pair of poles okanye ukuthetha ngokubanzi, i-P pairs of poles inokufumaneka. I-P yi-pole logarithm.

I-motor eneepali ezisibhozo ithetha ukuba i-rotor inezibonda ezi-8 zemagnethi, i-2p = 8, oko kukuthi, i-motor ine-4 iperi ye-poles magnetic. Ngokubanzi, iijenereyitha ze-turbo ziinjini zepali ezifihliweyo, ezinezibini ezimbalwa zepali, zidla ngokuba yi-1 okanye izibini ezi-2, kunye ne-n=60f/p, ngoko ke isantya sazo siphezulu kakhulu, ukuya kuthi ga kwi-3000 revolutions (amandla aphindaphindwayo), kunye nenani leepali ze Ijenereyitha yombane wamanzi inkulu kakhulu, kwaye ubume be-rotor luhlobo lwepali ebalaseleyo, kwaye inkqubo inzima kakhulu. Ngenxa yenani elikhulu leepali, isantya sayo siphantsi kakhulu, mhlawumbi iirevolutions ezimbalwa ngomzuzwana.

Ukubalwa kwesantya semotor synchronous

Isantya se-synchronous se-motor sibalwa ngokwefomula (1). Ngenxa ye-slip factor ye-asynchronous motor, kukho umahluko othile phakathi kwesantya sokwenyani semoto kunye nesantya esihambelanayo.

n=60f/p………………………(1)

Kwifomula (1):

n - isantya semoto;

I-60 - ibhekisela kwixesha, imizuzwana engama-60;

I-F--i-frequency yamandla, i-frequency yamandla kwilizwe lam yi-50Hz, kunye ne-frequency yamandla kumazwe angaphandle yi-60 Hz;

P——inani leepali zeepali zenjini, njengemoto yeepali ezi-2, P=1.

Ngokomzekelo, i-motor ye-50Hz, isantya esihambelanayo se-2-pole (i-1 pair of poles) motor yi-3000 rpm; isantya 4-pali (2 izibini zezibonda) motor yi 60×50/2=1500 rpm.

Kwimeko yamandla aphuma rhoqo, kokukhona inani leepali zeepali zemoto, isantya esisezantsi semoto, kodwa isikhulu itorque yayo. Ke ngoko, xa ukhetha i-motor, jonga ukuba ingakanani i-torque efunwa ngumthwalo.

Ubuninzi bezigaba ezithathu ezitshintshanayo ngoku kwilizwe lethu yi-50Hz. Ke ngoko, isantya esihambelanayo se-2-pole motor yi-3000r/min, isantya esihambelanayo se-4-pole motor yi-1500r/min, isantya esihambelanayo se-6-pole motor yi-1000r/min, kunye nesantya esihambelanayo semoto. I-8-pole motor yi-750r / min, Isantya esihambelanayo se-10-pole motor yi-600r / min, kunye nesantya esihambelanayo se-12-pole motor yi-500r / min.

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Ixesha lokuposa: Apr-08-2023