Izigaba ezintathu zeenjini ze-asynchronouszizinto esihlala sizibiza ngokuba ziinjini ze-AC
Imfuneko yokujikeleza kweenjini ze-asynchronous zesigaba sesithathu kukuba nentsimi yamagnetic ejikelezayo. I-stator windings yee-motor ze-asynchronous zesigaba sesithathu zisetyenziselwa ukuvelisa iindawo ezijikelezayo zamagnetic. Njengoko sonke sisazi, i-voltage yesigaba ukuya kwisigaba phakathi kwezigaba zihluke ngama-degrees angama-120, kwaye izikhokelo zendawo ezijikelezayo ezintathu ze-stator yesigaba sesithathu se-asynchronous motor nayo ihluke nge-120 degrees. Ngale ndlela, xa i-stator winding idlula, xa umbane wesigaba sesithathu uvuliwe, i-stator winding ivelisa intsimi yamagnetic ejikelezayo.
Umhlaba ojikelezayo wemagnethi ujikeleza kanye esithubeni xa utshintsho lwangoku kube kanye kumjikelo. Ngamanye amazwi, isantya sokujikeleza sommandla wamagnetic ojikelezayo ulungelelaniswa notshintsho lwangoku. Isantya sokujikeleza sombane ojikelezayo simi ngolu hlobo lulandelayo. n=60f/P Apha, f yi-frequency yonikezelo lwamandla, i-P linani leepali zeepali zomhlaba wemagnethi, kunye neyunithi ye-n linani lokujikeleza ngomzuzu. Ngokwale fomyula, isantya semoto sihambelana nokuphindaphinda kwezibonda zemagneti kunye nokuphindaphinda konikezelo lwamandla.
Ukujija kwenqanaba elinyeInqanaba lesithathu le-asynchronous motoryi-1, kwaye i-rotor ikwimo ye-sedan. Xa i-single-phase sinusoidal current idlula kwi-stator winding, i-motor yenza i-AC magnetic field. Ubunzulu kunye nelathiso lalo mhlaba wobuzibuthe butshintsha ngokwe-sinusoid ngokuhamba kwexesha, kodwa ngenxa yokuba ihleli esithubeni, lo mmandla wemagnethi ukwabizwa ngokuba yi-interactive pulsating magnetic field. Lo mmandla wemagnethi usebenzayo unokuboliswa ube ziindawo ezimbini ezijikelezayo zemagnethi ezinesantya esifanayo kunye nezalathiso ezijikelezayo ezichaseneyo. Xa i-rotor imile, ezi zimbini ezijikelezayo zemagneti zivelisa iitorque ezimbini kwi-rotor, ezizicaba kwaye zichasene kwicala, ngoko i-torque yi-0 xa isenziwa, ngoko i-motor ayikwazi ukujikeleza.
Xa amandla angaphandle asetyenziselwa ukujikeleza iisigaba sesithathu induction ac motorkwicala elithile (ukujikeleza nge-clockwise, njl. njl.), ukuhamba kwentsimi yamagnetic yokusika phakathi kwendawo yamagnetic ejikelezayo kunye nentsimi yamagnetic ejikelezayo kwindlela ye-clockwise iba yincinci. Ukushukuma kwemigca yemagnethi yamandla esikiweyo phakathi kwendawo yemagnethi ejikelezayo kunye nemagnethi ejikelezayo echasene newotshi iba nkulu. Ngale ndlela, ibhalansi iyawa, i-torque ye-electromagnetic iyonke eyenziwa yi-rotor ayiyi kuba yi-zero, kwaye i-rotor iya kujikeleza kwi-propulsion direction.