Imotoi-shaft ilungisiwe ukuze ingazungezi, futhi i-current inikwe amandla. Ngalesi sikhathi, okwamanje i-rotor current ekhiyiwe. Amamotho ajwayelekile e-AC, okuhlanganisa amamotho ashintshashintshayo ama-frequency, awavunyelwe ukuma.Ngokwejika lesici langaphandle le-AC motor, lapho injini ye-AC ikhiyiwe, kuzokwenziwa "i-subversion current" ukuze kushiswe injini.
I-current-rotor current kanye ne-start current iyalingana ngenani, kodwa ubude be-motor start current kanye ne-locked-rotor current ihlukile. Inani eliphakeme lamanje eliqalayo livela phakathi kuka-0.025 ngemva kokuba injini ivuliwe, futhi ibola ngokuphawulekayo ngokuhamba kwesikhathi. , isivinini sokubola sihlobene nesikhathi esingaguquki senjini; kuyilapho i-rotor yamanje ye-motor ingaboli ngokuhamba kwesikhathi, kodwa ihlala ingashintshi.
Kusukela ekuhlaziyweni kwesimo senjini, singayihlukanisa ibe yizifunda ezintathu: ukuqala, ukusebenza okulinganiselwe nokuvala shaqa. Inqubo yokuqala isho inqubo yokuguqula i-rotor isuke ku-static iye esimweni sesivinini esilinganiselwe lapho injini inikwe amandla.
Mayelana ne-motor eqala okwamanje
Ukuqala okwamanje okuhambisana nokuguqulwa kwe-rotor kusuka kusimo esimile kuya esimweni sokugijima ngesikhathi lapho injini inikezwa amandla ngaphansi kwesimo se-voltage elinganiselwe. Kuyinqubo yokuguqula isimo sokunyakaza kwe-motor rotor, okungukuthi, ukushintsha inertia ye-rotor, ngakho-ke okwamanje okuhambisanayo kuzoba kukhulu.Uma uqala ngokuqondile, amandla okuqala enjini ngokuvamile aphindwe izikhathi ezi-5 kuya kweziyi-7 kunamanje akaliwe.Uma isiqalo semoto sisikhulu kakhulu, sizoba nomthelela omkhulu omubi emzimbeni wemoto kanye negridi yamandla. Ngakho-ke, kumamotor amakhulu naphakathi nendawo, isiqalo samanje sizokhawulelwa cishe izikhathi ezi-2 zamanje ezilinganisiwe ngokuqala okuthambile. Ukuthuthukiswa okuqhubekayo kwesistimu yokulawula imoto kanye nezindlela zokuqalisa ezihlukahlukene ezifana nokuqaliswa kwefrikhwensi eguquguqukayo kanye nokusuka phansi kokuqala kuyixazulule kangcono le nkinga.
Mayelana motor stall current
Ngokwezwi nezwi, kungaqondwa ukuthi i-rotor current ekhiyiwe ilena lamanje elikalwa lapho i-rotor igcinwa imile, futhi i-rotor ekhiyiwe ye-motor yisimo lapho injini isakhipha i-torque lapho isivinini singu-zero, ngokuvamile okuwumshini noma okokwenziwa.
Lapho injini igcwele ngokweqile, imishini eshayelwa iyahluleka, ukuthwala kulimale, futhi injini inokwehluleka okukhulu, injini ingase ingakwazi ukujikeleza.Lapho i-motor ikhiyiwe, amandla ayo aphansi kakhulu, futhi i-rotor yamanje ekhiyiwe inkulu, futhi ukuvuthwa kwemoto kungase kushiswe isikhathi eside.Kodwa-ke, ukuze uhlole ukusebenza kwemoto ethile, kuyadingeka ukwenza ukuhlolwa kwe-stall ku-motor, okwenziwa kuzo zombili izinhlobo zokuhlolwa nokuhlolwa kokuhlolwa kwemoto.
Ukuhlolwa kwe-rotor ekhiyiwe ngokuyinhloko ukukala i-current-rotor current, inani le-torque ekhiyiwe kanye nokulahlekelwa kwe-rotor evaliwe ku-voltage elinganiselwe. Ngokuhlaziywa kwe-locked-rotor current kanye nebhalansi yezigaba ezintathu, ingabonisa i-stator ne-rotor windings ye-motor, kanye ne-stator ne-rotor. Ukuqonda kwesekethe kazibuthe eyakhiwe kanye nezinkinga ezithile zekhwalithi.
Ngesikhathi sokuhlolwa kohlobo lwemoto, kunamaphuzu amaningi kagesi akalwa ngokuhlolwa kwerotha ekhiyiwe. Lapho injini ihlolwa efekthri, indawo kagesi izokhethwa ukuze ilinganiswe. Ngokuvamile, i-voltage yokuhlola ikhethwa ngokwengxenye eyodwa kwezine ukuya kokukodwa kokuhlanu kwe-voltage elinganisiwe yemoto, njengokuthi Lapho i-voltage elinganiselwe ingu-220V, i-60V ikhethwa ngokufanayo njenge-voltage yokuhlola, futhi lapho i-voltage elinganiselwe ingu-380V, I-100V ikhethwa njenge-voltage yokuhlola.
Isikhathi sokuthumela: May-09-2022