Kuma-asynchronous motors, ukushelela kuyisimo esidingekayo sokusebenza kwemoto, okungukuthi, ijubane le-rotor lihlale lingaphansi kwejubane lensimu yamagnetic ejikelezayo.Ukuze uthole i-motor synchronous, amasimu kazibuthe we-stator kanye ne-rotor ahlale egcina ijubane elifanayo, okungukuthi, isivinini sokujikeleza kwemoto sihambisana nesivinini samagnetic field.
Kusukela ekuhlaziyweni kwesakhiwo, isakhiwo se-stator se-synchronous motor asihlukile kumshini we-asynchronous.Uma i-curse yezigaba ezintathu idluliswa, inkambu kazibuthe ejikelezayo ehambisanayo izokwenziwa;ingxenye ye-rotor ye-motor iphinde ibe nenkundla kazibuthe esabalaliswe nge-sinusoidally ye-DC excitation, engase futhi ikhiqizwe yizibuthe ezihlala njalo.
Uma i-motor isebenza ngokujwayelekile, ijubane lokujikeleza le-rotor magnetic field lihambisana nesivinini sokujikeleza kwe-stator magnetic field, okungukuthi, i-stator kanye ne-rotor magnetic fields zilinganiselwe emkhathini, okuyimvelo yokuvumelanisa ye-synchronous. imoto.Uma lezi ezimbili zingavumelani, kubhekwa ukuthi I-motor isiphumile esinyathelweni.
Ukuthatha isiqondiso sokujikeleza kwe-rotor njengesithenjwa, lapho insimu kazibuthe ye-rotor ihola insimu kazibuthe ye-stator, kungaqondwa ukuthi insimu kazibuthe ye-rotor inamandla, okungukuthi, ukuguqulwa kwamandla ngaphansi kwesenzo samandla, i-synchronous motor is. isimo sejeneretha;Ngokuphambene nalokho, isiqondiso sokujikeleza se-motor rotor sisesesethenjwa, lapho insimu kazibuthe ye-rotor ibambezeleka ngemuva kwe-stator magnetic field, singaqonda ukuthi insimu kazibuthe ye-stator idonsa i-rotor ukuze ihambe, futhi injini isesimweni se-motor. .Ngesikhathi sokusebenza kwe-motor, lapho umthwalo odonswa yi-rotor ukhula, i-lag ye-rotor magnetic field ehlobene ne-stator magnetic field izokhula.Ubukhulu bemoto bungabonisa amandla emoto, okungukuthi, ngaphansi kwe-voltage elinganiselwe efanayo kanye nesilinganiso samanje, amandla amakhulu, i-engeli yamandla ehambisanayo inkulu.
Kungakhathaliseki ukuthi isimo se-motor noma isimo se-generator, lapho i-motor ingenawo umthwalo, i-engeli yamandla yethiyori inguziro, okungukuthi, izindawo ezimbili zikazibuthe ziqondana ngokuphelele, kodwa isimo sangempela siwukuthi ngenxa yokulahlekelwa okuthile kwenjini. , kusekhona i-engeli yamandla phakathi kwakho kokubili.Kukhona, kuncane kuphela.
Uma i-rotor ne-stator magnetic fields zingavumelanisiwe, i-angle yamandla yemoto iyashintsha.Lapho i-rotor ilahla ngemuva kwe-stator magnetic field, insimu yamagnetic ye-stator ikhiqiza amandla okushayela ku-rotor;lapho insimu yamagnetic ye-rotor ihola insimu kazibuthe ye-stator, insimu kazibuthe ye-stator ikhiqiza ukumelana ne-rotor, ngakho-ke i-torque evamile ingu-zero.Njengoba i-rotor ingatholi i-torque namandla, ifika ime kancane.
Uma i-synchronous motor isebenza, inkambu kazibuthe ye-stator ishayela inkambu kazibuthe ye-rotor ukuze ijikeleze.Kukhona i-torque engaguquki phakathi kwezinkundla ezimbili zikazibuthe, futhi isivinini sokujikeleza salokhu okubili siyalingana.Uma ijubane lalokhu okubili lingalingani, i-torque ye-synchronous ayikho, futhi injini izoma kancane kancane.Isivinini se-rotor asihambisani ne-stator magnetic field, okwenza ukuthi i-torque evumelanisiwe iphele futhi i-rotor ime kancane, ebizwa ngokuthi "i-out-of-step phenomenon".Lapho kwenzeka into engaphandle kwesinyathelo, i-stator current ikhuphuka ngokushesha, engathandeki kakhulu.Ukunikezwa kwamandla kufanele kunqanyulwe ngokushesha ngangokunokwenzeka ukugwema ukulimala kwemoto.
Isikhathi sokuthumela: Jul-04-2022