Ama-Motor angenye yezinto zikagesi ezijwayelekile empilweni yansuku zonke. Uyini umehluko phakathivariable frequency motorskanye nezinjini ezijwayelekile zezimboni?
Ama-Motor angamadivayisi kagesi ancike kumgomo wokungeniswa kuka-electromagnetic ukuthola amandla emoto nokudluliswa. Umsebenzi wayo oyinhloko ukukhiqiza i-torque yokushayela njengomthombo wamandla kagesi noma omshini.
Izinjini ezijwayelekilekanye nama-motor frequency aguquguqukayo womabili ama-asynchronous motors. Umgomo wayo wokusebenza: I-stator winding ye-motor iwukuzungeza kwezigaba ezintathu ezilinganayo emkhathini. Uma i-AC ye-symmetrical AC yezigaba ezintathu yengezwa ekujikeni kwe-stator, inkambu kazibuthe ejikelezayo izosungulwa ngaphakathi kwenjini. Le nkundla kazibuthe ezungezayo inqamula ukujika kwe-rotor, ngaleyo ndlela ikhiqize amandla akhona ekujikeni kwe-rotor. I-rotor ephethe njengamanje izokhiqiza amandla kazibuthe kagesi ngaphansi kwesenzo se-stator ezungezisayo kazibuthe, ngaleyo ndlela iqhube injini ukuthi ijikeleze.
Amamotho amafrikhwensi aguquguqukayo kanye nezinjini ezijwayelekile zezimboni Amamotho ajwayelekile avame kakhulu, kepha yiziphi izinzuzo zamamotho ashintshashintshayo uma kuqhathaniswa namamotho ajwayelekile?
- Amamotho ashintshashintshayo angasebenza kumafrikhwensi aphansi kakhulu nama-voltage. Futhi zingaqalwa ngaphandle komthelela wamanje. Izindlela ezahlukahlukene zokubhuleka ezinikezwe i-inverter zingasetshenziselwa ukubhuleka ngokushesha ukuze kuzuzwe ukuqala nokubhuleka njalo. Ngoba amamotho amafrikhwensi aguquguqukayo angafinyelela ukusebenza okudinga kakhulu kanye nezindawo zokusebenza ezinzima kunamamotho ajwayelekile. Ngakho-ke, ama-motor frequency aguquguqukayo anamazinga aphezulu okushisa kunamamotho ajwayelekile embonini, amasistimu okupholisa aphoqelelwe (abalandeli bokupholisa abakhelwe ngaphakathi), amandla aqinile emishini esakhiweni, ama-rotor bearings angcono nempilo ende yesevisi kunamamotho ajwayelekile.
- Njengoba sonke sazi, ama-motor ajwayelekile angasebenza kuphela ngaphansi kwesimo se-50 Hz imvamisa yamandla. Uma ububanzi bokuhluka kwefrikhwensi bukhulu kakhulu, injini izoshisa kakhulu noma ishise injini. Kodwa-ke, amamotho amafrikhwensi aguquguqukayo angalungisa isivinini semoto nganoma yisiphi isivinini ngaphakathi kwebanga lejubane ngaphandle kokulimala. Ngaphansi kwezimo ezijwayelekile, amamotho amafrikhwensi aguquguqukayo angasebenza ngokuqhubekayo phakathi kwebanga lejubane elilinganiselwe ngomthwalo olinganiselwe ogcwele, futhi ukukhuphuka kwezinga lokushisa kwemoto ngeke kudlule inani lokulinganiswa kwemoto.
- Nakuba ama-motor frequency aguquguqukayo ebiza kancane kunamamotho ajwayelekile ngentengo, izinzuzo zawo zisobala kakhulu. Indlela yokulawula isivinini se-AC yesiguquli se-frequency kanye ne-variable frequency motor ingathuthukisa kakhulu izinga lokuzenzakalela komshini nokusebenza kahle kokukhiqiza. Ngaphezu kwalokho, umsebenzi wokuqala othambile wesiguquli sefrikhwensi uphinde wehlise umthelela wamanje omkhulu kugridi yamandla lapho amamotho ajwayelekile eqala, futhi wonga amandla amaningi kunamamotho ajwayelekile.
Njengoba amanani entengo yeziguquli zefrikhwensi kanye namamotho ashintshashintshayo eqhubeka nokwehla, ukusetshenziswa kwamamotho ashintshashintshayo kuzokwanda kakhulu.