Kwii-asynchronous motors, i-slip yimeko efunekayo yokusebenza kwemoto, oko kukuthi, isantya se-rotor sihlala singaphantsi kwesantya se-magnetic field ejikelezayo. Kwi-motor synchronous, imimandla yamagnetic ye-stator kunye ne-rotor ihlala igcina isantya esifanayo, oko kukuthi, isantya sokujikeleza kwemoto sihambelana nesantya samagnetic field.
Ukususela kuhlalutyo lwesakhiwo, isakhiwo se-stator se-motor synchronous ayifani naleyo yomatshini we-asynchronous.Xa inqanaba lesithathu langoku ligqithiselwa, i-synchronous rotating field magnetic iya kuveliswa; inxalenye ye-rotor ye-motor nayo ine-sinusoidally isasazwe imagnethi ye-DC excitation, enokuthi iveliswe ngoomazibuthe abasisigxina.
Xa i-motor isebenza ngokuqhelekileyo, isantya esijikelezayo se-rotor magnetic field sihambelana nesantya sokujikeleza se-stator magnetic field, oko kukuthi, i-stator kunye ne-rotor magnetic fields ziqiniswe ngokufanelekileyo kwisithuba, okuyindalo ehambelanayo ye-synchronous. imoto. Nje ukuba ezi zimbini zingahambelani, kucingwa ukuba iMotor iphumile kwinqanaba.
Ukuthatha ulwalathiso olujikelezayo lwe-rotor njengesalathiso, xa i-rotor magnetic field ikhokelela kwi-stator magnetic field, kunokuqondwa ukuba i-rotor magnetic field ilawula, oko kukuthi, ukuguqulwa kwamandla phantsi kwesenzo samandla, i-synchronous motor is. imeko yejenereyitha; ngokuchaseneyo, ulwalathiso olujikelezayo lwe-motor rotor lusekho Ukubhekisela, xa i-rotor magnetic field ibeka emva kwe-stator magnetic field, sinokuqonda ukuba i-stator magnetic field idonsa i-rotor ukuba ihambe, kwaye i-motor ikwimo yemoto. .Ngethuba lokusebenza kwemoto, xa umthwalo otsalwa yi-rotor ukhula, i-lag ye-rotor magnetic field ngokubhekiselele kwi-stator magnetic field iya kwanda. Ubungakanani bemoto bungabonakalisa amandla emoto, oko kukuthi, phantsi kwe-voltage efanayo kunye ne-current rated current, inkulu amandla, inkulu i-angle yamandla ehambelanayo.
Nokuba imeko yemoto okanye imeko yejenereyitha, xa imotor ingenamthwalo, i-angle yethiyori yamandla ingu-zero, oko kukuthi, iindawo ezimbini zemagnethi zihambelana ngokupheleleyo, kodwa eyona meko kukuba ngenxa yelahleko ethile yemoto. , kusekho i-engile yamandla phakathi kwezi zimbini. Zikhona, zincinci kuphela.
Xa i-rotor kunye ne-stator magnetic fields zingahambelani, i-angle yamandla yemoto iyatshintsha.Xa i-rotor ilahla emva kwe-stator magnetic field, i-stator magnetic field ivelisa amandla okuqhuba kwi-rotor; xa i-rotor magnetic field ikhokelela kwi-stator magnetic field, i-stator magnetic field ivelisa ukuchasana ne-rotor, ngoko ke i-torque ephakathi ngu-zero.Ekubeni i-rotor ayifumani i-torque kunye namandla, ifika kwi-stop stop.
Xa i-synchronous motor isebenza, i-stator magnetic field iqhuba i-rotor magnetic field ukuba ijikeleze.Kukho i-torque esisigxina phakathi kweendawo ezimbini zemagneti, kunye nezantya zokujikeleza zombini zilingana.Nje ukuba isantya sesibini singalingani, i-torque ye-synchronous ayikho, kwaye i-motor iya kuyeka kancinci.Isantya se-rotor asihambelani kunye ne-stator magnetic field, ebangela ukuba i-torque ye-synchronous inyamalale kwaye i-rotor imise kancane, ebizwa ngokuba "yi-out-of-step phenomenon".Xa kwenzeka into ephumayo, i-stator current iphakama ngokukhawuleza, into engathandekiyo kakhulu. Ukunikezelwa kombane kufuneka kunqunyulwe ngokukhawuleza ukuphepha umonakalo kwi-motor.
Ixesha lokuposa: Jul-04-2022