Iphutha lesigaba nesigaba iphutha likagesi elihlukile kuma-motor windings ezigaba ezintathu . Kusukela kwizibalo zama-motor angalungile, kungatholakala ukuthi ngokweziphambeko zesigaba-to-isigaba, izinkinga zama-motor-pole motors zigxile kakhulu, futhi eziningi zazo zenzeka ekupheleni kwama-windings.

Kusukela ekusabalaliseni amakhoyili asongayo enjini, ubude bamakhoyili asongayo anezigxobo ezimbili sikhulu ngokuqhathaniswa, futhi ukubunjwa kwesiphetho kuyinkinga enkulu enqubweni yokushumeka izintambo. Ngaphezu kwalokho, kunzima ukulungisa i-insulation yesigaba-to-isigaba nokubopha ama-windings, futhi ukukhishwa kwe-insulation yesigaba kuya kwesigaba kujwayele ukwenzeka. umbuzo.

Ngesikhathi senqubo yokukhiqiza, abakhiqizi bezimoto abasezingeni bazohlola amaphutha esigaba nesigaba ngokusebenzisa indlela yokumelana ne-voltage, kodwa isimo somkhawulo sokuqhekeka singase singatholakali ngesikhathi sokuhlolwa kokusebenza okusongayo kanye nokuhlolwa kokungalayishi. Izinkinga ezinjalo zingase zenzeke uma injini isebenza ngaphansi komthwalo.

Ukuhlolwa komthwalo wemoto kuwuhlobo lokuhlola into, futhi kuphela ukuhlolwa okungekho umthwalo okwenziwa ngesikhathi sokuhlolwa kwefekthri, okungesinye sezizathu zokuthi injini ishiye ifektri nezinkinga. Kodwa-ke, ngokombono wokulawulwa kwekhwalithi yokukhiqiza, kufanele siqale ngokumiswa kwenqubo, sinciphise futhi siqede ukusebenza okubi, futhi sithathe izinyathelo zokuqinisa ezidingekayo zezinhlobo ezihlukene zokusonta.

Inani lamapheya ezigxobo zenjini

Isethi ngayinye yamakhoyili enjini ye-AC enezigaba ezintathu izokhiqiza izigxobo kazibuthe zika-N kanye no-S, futhi inani lezigxobo kazibuthe eziqukethwe esigabeni ngasinye senjini ngayinye yinani lezigxobo. Njengoba izigxobo kazibuthe zivela ngababili, injini inezigxobo ezingu-2, 4, 6, 8….

Uma kunekhoyili eyodwa kuphela esigabeni ngasinye sokujika kwezigaba A, B, kanye no-C, esabalaliswa ngokulinganayo futhi ngokulinganayo kusiyingi, izinguquko zamanje kanye, futhi inkambu kazibuthe ezungezayo iphenduka kanye, okuyipheya yezigxobo. Uma isigaba ngasinye sezigaba ezintathu zokusonteka kwesigaba A, B, kanye no-C sakhiwe amakhoyili amabili ochungechungeni, futhi ubude bekhoyili ngayinye siyindingilizi engu-1/4, khona-ke inkambu kazibuthe eyinhlanganisela esungulwe amandla ezigaba ezintathu isengumjikelezo ojikelezayo. insimu kazibuthe, futhi izinguquko zamanje kanye , inkambu kazibuthe ejikelezayo ijika kuphela ukuphenduka okungu-1/2, okungamapheya angu-2 ezigxobo. Ngokufanayo, uma ama-winding ehlelwa ngokwemithetho ethile, amapheya angu-3 wezigxobo, amapheya angu-4 wezigxobo noma ngokuvamile, ama-P pair of pole angatholakala. I-P yi-pole logarithm.

Imoto enezigxobo eziyisishiyagalombili isho ukuthi i-rotor inezigxobo kazibuthe eziyi-8, 2p=8, okungukuthi, injini inamapheya angu-4 ezigxobo kazibuthe. Ngokuvamile, ama-turbo generator angama-pole motors afihliwe, anama-pole pair ambalwa, ngokuvamile amapheya angu-1 noma angu-2, kanye no-n=60f/p, ngakho-ke ijubane lawo liphezulu kakhulu, lifinyelela kuma-revolution angu-3000 (imvamisa yamandla), kanye nenani lezigxobo ze Ijeneretha kagesi wamanzi inkulu impela, futhi isakhiwo se-rotor siwuhlobo lwesigxobo esiphawulekayo, futhi inqubo iyinkimbinkimbi. Ngenxa yobuningi bezigxobo zayo, ijubane layo liphansi kakhulu, mhlawumbe ama-revolution ambalwa nje ngomzuzwana.

Ukubalwa kwejubane le-motor synchronous

Ijubane lokuvumelanisa lemoto libalwa ngokuya ngefomula (1). Ngenxa yokushelela kwe-asynchronous motor, kunomehluko othile phakathi kwejubane langempela lemoto kanye nesivinini sokuvumelanisa.

n=60f/p……………………(1)

Kufomula (1):

n - isivinini semoto;

60 - ibhekisela esikhathini, imizuzwana engu-60;

F——imvamisa yamandla, imvamisa yamandla ezweni lami ingu-50Hz, futhi imvamisa yamandla emazweni angaphandle ingu-60 Hz;

P——inombolo yamapheya wezigxobo zenjini, njengemoto yezigxobo ezi-2, P=1.

Isibonelo, ku-motor engu-50Hz, isivinini sokuvumelanisa se-2-pole (ipheya eli-1 lezigxobo) ngu-3000 rpm; ijubane le-4-pole (amapheya ama-2 wezigxobo) yi-60×50/2=1500 rpm.

Endabeni yamandla aphumayo angaguquki, inani lamapheya wezigxobo zenjini liyancipha, ijubane lemoto liyancipha, kodwa i-torque yayo inkulu. Ngakho-ke, lapho ukhetha injini, cabanga ukuthi ingakanani i-torque edinga ukuqala.

Imvamisa yokushintshana kwezigaba ezintathu ezweni lethu ngu-50Hz. Ngakho-ke, isivinini esivumelanayo se-2-pole motor ngu-3000r/min, isivinini esivumelanayo se-4-pole motor ngu-1500r/min, isivinini esivumelanayo se-6-pole motor singu-1000r/min, kanye nesivinini esivumelanayo semoto. I-8-pole motor ingu-750r/min, Ijubane lokuvumelanisa le-10-pole motor ngu-600r/min, futhi isivinini esivumelanayo se-12-pole motor ngu-500r/min.

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Isikhathi sokuthumela: Apr-08-2023