Injini ehambisanayo yemagnethi ehlala njalo yakhiwe kakhulu yi-stator, i-rotor kanye nezingxenye zezindlu. Njengezinjini ze-AC ezivamile, i-stator core inesakhiwo esinama-laminated ukunciphisa ukulahleka kwensimbi okubangelwa umthelela wamanje we-eddy kanye ne-hysteresis ngesikhathi sokusebenza kwenjini; ama-windings ngokuvamile anesakhiwo esimaphakathi sezigaba ezintathu, kodwa ukukhethwa kwamapharamitha kuhlukile kakhulu. Ingxenye ye-rotor inesimo esihlukahlukene, kufaka phakathi i-rotor yemagnethi ehlala njalo ene-starter squirrel-cage, kanye ne-rotor yemagnethi ehlala njalo ehlanganisiwe noma efakwe ebusweni. I-rotor core ingenziwa ngesakhiwo esiqinile noma isakhiwo esinama-laminated. I-rotor ifakwe izinto zemagnethi ezihlala njalo, ezibizwa ngokuthi insimbi yemagnethi.
Ngaphansi kokusebenza okuvamile kwenjini yamagnetic ehlala njalo, amasimu kazibuthe e-rotor kanye ne-stator asesimweni sokuvumelanisa. Akukho current ebangelwa engxenyeni ye-rotor, ngakho-ke akukho ukulahleka kwethusi le-rotor noma i-hysteresis kanye nokulahleka kwamanje kwe-eddy. Asikho isidingo sokucabangela inkinga yokukhiqizwa kokushisa okubangelwa ukulahleka kwe-rotor. Ngokuvamile, ama-motor kazibuthe ahlala njalo anikwa amandla yi-frequency converters ezinikezele, enemisebenzi yokuqalisa ethambile ngokwemvelo. Ngaphezu kwalokho, ama-motor kazibuthe ahlala njalo angama-motor ahambisanayo futhi anesici sama-motor ahambisanayo kangangokuthi i-power factor ingalungiswa enanini elicacisiwe ngamandla okuvuselela. Ngakho-ke, i-power factor ingaklanywa enanini elidingekayo.
Ngokombono wokuqala, ngenxa yesimo sangempela lapho ama-motor amagnet ahlala njalo eqalwa khona ngamandla okuguqulwa kwama-frequency noma ama-frequency converters afanayo, inqubo yokuqala yama-motor amagnet ahlala njalo kulula kakhulu ukuyifeza; ngendlela efanayo nokuqala kwama-motor aguqula ama-frequency, igwema amaphutha okuqala kwama-motor avamile angenazo izinsimbi.
Ekuphetheni, ukusebenza kahle kanye nesici samandla sama-motor amagnethi ahlala njalo kungafinyelela amazinga aphezulu kakhulu. Isakhiwo sawo silula kakhulu futhi abelokhu ethandwa kakhulu emakethe eminyakeni eyishumi edlule. Kodwa-ke, iphutha le-demagnetization liyinkinga engenakugwenywa kuma-motor amagnethi ahlala njalo. Uma ugesi umkhulu kakhulu noma izinga lokushisa liphezulu kakhulu, izinga lokushisa le-motor winding lizokhuphuka kakhulu ngokushesha, ugesi uzokhula kakhulu, kanti ugesi uzokhula ngokushesha. Ekulawulweni kwama-motor amagnethi ahlala njalo, kufakwa idivayisi yokuvikela ugesi ongaphezu kwamandla ukuze kugwenywe inkinga yokusha kwe-stator winding yemoto. Kodwa-ke, lokhu kuholela ekususweni kogesi kanye nokuvalwa kwemishini.
Isikhathi sokuthunyelwe: Meyi-06-2025