Ukuqhubela phambili, ngokubhekisele koku, ungacinga ngenkqubela phambili yokufumana izatifikethi zobungcali, ezifana ne-CET-4 kunye ne-CET-6. Kwimoto, imoto ikwanazo nezigaba. Olu luhlu apha alubhekiseli kubude bemoto, kodwa kwisantya esihambelanayo semoto. Masithathe i-motor yenqanaba lesi-4 njengomzekelo ukuze sibone intsingiselo ethile yochungechunge lweemoto.
Injini yeNqanaba lesi-4 ibhekisa kwisantya esihambelanayo semoto somzuzu o-1 = {ubuninzi bombane (50Hz) × imizuzwana engama-60} ÷ (izigaba zemoto ÷ 2) =3000 ÷ 2 = ii-1500 revolutions. Kwifektri, sihlala sisiva ukuba imoto inezigaba ezahlukeneyo. Ukuze siqonde, kufuneka siqale sazi ingcamango ye-pole: i-pole ibhekisa kwi-magnetic pole eyenziwe yi-generator rotor emva kokuba umsinga womoya usetyenziswa kwi-rotor coil. Ngamafutshane, kuthetha ukuba ukujikeleza ngakunye kwe-rotor kunokubangela imijikelo emininzi yamandla kumjikelo omnye we-stator coil. Kubalulekile ukuvelisa amandla angama-50Hz ukuba inani lee-poles lahlukile. Izantya ezahlukeneyo ziyafuneka. I-50Hz, imizuzwana engama-60 kunye nemizuzu (okt 3000) yahlulwe ngenani lee-poles linani lee-revolutions zemoto ngomzuzu. Kunjalo nakwimoto, eyinkqubo echaseneyo yejenereyitha.
Inani leepali libonisa isantya esihambelanayo semoto. Isantya esihambelanayo seepali ezimbini yi-3000rmin, isantya esihambelanayo seepali ezine yi-1500rmin, isantya esihambelanayo seepali ezi-6 yi-1000rmin, kwaye isantya esihambelanayo seepali ezi-8 yi-750rmin. Kuyaqondakala ukuba ipali ezi-2 linani lesiseko (3000), iipali ezi-4 zinokwahlulwa zibe ziipali ezi-2 kuphela, iipali ezi-6 zinokwahlulwa zibe zii-3, kwaye iipali ezi-8 zinokwahlulwa zibe zii-4. Endaweni yeepali ezi-2, kufuneka kusetyenziswe iipali ezi-3000 ukususa ezi-2. Okukhona inani leepali zemoto liphezulu, kokukhona isantya semoto siphantsi, kodwa i-torque yayo inkulu; xa ukhetha imoto, kufuneka uqwalasele i-torque yokuqala efunekayo ngumthwalo. Umzekelo, i-torque efunekayo ukuqala ngomthwalo inkulu kuneyokuqala ngaphandle komthwalo. Ukuba inamandla aphezulu kwaye ithwala umthwalo onzima, kufuneka kuqwalaselwe ukuqala kwe-step-down (okanye ukuqala kwe-star delta); Ngokuphathelele isantya esihambelana nomthwalo emva kokumisela inani leepali zemoto, ingathathwa njengeqhuba nge-belt pulley enobubanzi obahlukeneyo okanye ngegiya yesantya esiguquguqukayo (iGearbox). Ukuba iimfuno zamandla zomthwalo azinakufezekiswa emva kokumisela inani leepali zemoto ngebhanti okanye i-gear transmission, amandla okusebenzisa emoto kufuneka aqwalaselwe.
Imoto ye-AC yesigaba sesithathu yenziwe kakhulu yi-stator kunye ne-rotor. Xa i-AC yesigaba sesithathu iqhagamshelwe kwi-stator, kuya kuveliswa intsimi yemagnethi ejikelezayo. Intsimi yemagnethi isoloko ineepali ezimbini (kunokuthiwa zivela ngababini), ezizezi: i-N pole (North Pole) kunye ne-S pole (south pole), eyaziwa ngokuba yi-counter pole. Xa indlela yokujikajika ye-AC motor stator winding yahlukile, inani leepali zemagnethi zentsimi yemagnethi ejikelezayo yahlukile. Inani leepali zemagnethi lichaphazela ngqo isantya semoto, kwaye ubudlelwane bazo buyi: isantya esihambelanayo = 60 × I-frequency level logarithm. Ukuba isantya esihambelanayo semoto yi-1500 rpm, kunokubalwa ukuba i-pole logarithm yi-2, oko kukuthi, i-4-pole motor ngokwefomula engentla. Isantya esihambelanayo kunye ne-pole logarithm ziiparameter ezisisiseko zemoto, ezinokufumaneka kwi-nameplate yemoto. Ngenxa yokuba i-pole logarithm inokuchaphazela isantya semoto, isantya semoto sinokutshintshwa ngokutshintsha i-pole logarithm yemoto.
Kwimithwalo yolwelo efana neefeni kunye neempompo, olu hlobo lomthwalo lunento ephawulekayo. Njengoko isitsho, lubizwa ngokuba yi-resistant mutation, oko kuthetha ukuba olu hlobo lomthwalo lunokumelana okukhulu nokuguquka kwemeko yangoku. Nangona i-torque efunekayo ukukhuthaza utshintsho lohlobo lomthwalo ingekho phezulu, ifuna amandla amaninzi ukutshintsha imeko yangoku ngokukhawuleza. Ifana namanzi abilayo. Umlilo omncinci nawo unokubila, kwaye kufuneka ubile kungekudala, kwaye umlilo onokufuneka uya kuba mkhulu kakhulu.
Ezi ziinkcazo ezithile zothotho lweemoto. Kwi-frequency ethile kunye ne-start current, akukho budlelwane bungenakuphepheka phakathi kwazo. I-start current ixhomekeke kwisetingi ye-VF curve yokuqala kunye nobude bexesha lokukhawulezisa. Kumthwalo wolwelo, ukusebenzisa i-power curve ezininzi kunokwenza izixhobo zisebenze ukonga amandla ngakumbi kwaye zifumane iingenelo zoqoqosho ezingaphezulu.
Ixesha lokuthumela: Novemba-08-2021
