Kiekie Kiekie AC Motor
kaʻa AChe mea hana e hoʻololi i ka ikehu uwila o ke au ʻokoʻa i ikehu mīkini.ʻO kahi kaʻa AC ka nui o ka wili electromagnet a i ʻole ka wili stator i hoʻohana ʻia e hoʻohua i kahi māla magnetic a me kahi mea hoʻokele a i ʻole rotor.Hana ʻia ke kaʻa me ka hoʻohana ʻana i ke ʻano o ka hoʻohuli ʻana i kahi coil i hoʻoikaika ʻia i loko o kahi māla magnetic me ka ikaika.ʻElua ʻano o nā motika AC: nā ʻenekini AC synchronous a me nā ʻenekini induction.
ʻO ka wili stator o kahi kaʻa AC ʻekolu-phase he ʻekolu coils i hoʻokaʻawale ʻia e nā degere 120 mai kēlā me kēia, i hoʻopili ʻia i kahi triangle a i ʻole ke ʻano hōkū.Ke hoʻohana ʻia nā ʻāpana ʻekolu, hoʻokumu ʻia kahi māla magnetic i kēlā me kēia coil, a hui ʻia nā māla magnetic ʻekolu e loaʻa ai kahi māla magnetic rotating.
kaʻa ACʻO ka stator a me ka rotor, a aia ʻelua ʻano o nā kaʻa AC: synchronous AC motor a me induction motor.Hoʻopuka nā ʻano ʻelua o nā kaʻa kaʻa kaʻa kaila ma o ka hoʻolilo ʻana i ka mana AC i ka wili stator, akā ʻo ka wili rotor o ka pūkini AC synchronous pono e hoʻolako ʻia me ka DC current (excitation current) e ka exciter, ʻoiai ʻaʻole e hoʻolako ʻia ka wili rotor o ka motor induction. pono e hanai i keia manawa.
ʻO ka wili stator o kahi kaʻa AC ʻekolu-phase he ʻekolu coils i hoʻokaʻawale ʻia e 120 degere mai kēlā me kēia a hoʻopili ʻia i kahi triangle a i ʻole ka hōkū.Ke hoʻohana ʻia ke ʻano o ka manawa ʻekolu, hoʻokumu ʻia kahi māla magnetic i kēlā me kēia coil, a hui ʻia nā māla ʻekolu e loaʻa i kahi kahua kaʻa.I ka pau ana o ka haalulu piha ana o keia manawa, e huli pono ana ke kahua hookuonoono i ka pule hookahi, nolaila, na hoololi i ka minuke o ke kahua makeke hulina N=60f.ʻO ka hoohalike f ka alapine o ka lako mana.
Hiki ke hoʻokaʻawale ʻia nā ʻenekini AC i nā ʻenekini synchronous a me nā motika asynchronous (a i ʻole nā motors non-synchronous) e like me ka nui o ka rotation rotor.ʻO ka wikiwiki o ka rotor o kahi kaʻa synchronous e like me ka wikiwiki o ke kahua magnetic rotating me ka nānā ʻole i ka ukana, no laila ua kapa ʻia kēia wikiwiki i ka wikiwiki synchronous, a e like me ka mea i ʻōlelo ʻia ma luna, ua hoʻoholo ʻia e ka alapine o ka mana.ʻAʻole mau ka wikiwiki o ka motor asynchronous, akā pili i ka nui o ka ukana a me ka volta o ka mana.Ma waena o nā kaʻa kaʻa asynchronous ʻekolu, aia nā kaʻa non-rectifier a me nā mīkini hoʻoponopono.ʻO ka hapa nui o nā motika asynchronous i ka hoʻomaʻamaʻa ʻana he mau kaʻa induction me ka ʻole o ka rectifier (akā ʻo ka parallel a me ka series three-phase asynchronous rectifier motors i nā pono o ka wikiwiki hiki ke hoʻololi i kahi ākea ākea a me ke kumu mana kiʻekiʻe), a ʻoi aku ka liʻiliʻi o kona wikiwiki ma mua o ka wikiwiki synchronous. .
Nā noi nui
kaʻa ACʻoi aku ka maikaʻi o ka hana, ʻaʻohe uahi, lepo a me ka ʻala, ʻaʻohe haumia i ke kaiapuni, a emi ʻole ka walaʻau.Ma muli o kāna mau ʻano pono, hoʻohana nui ʻia ia i nā ʻano like ʻole e like me ka hana ʻoihana a me ka mahiʻai, ka lawe ʻana, ka pale aupuni, nā mea kūʻai aku a me nā hale, nā lako uila, etc.
