Imoto ehambelanayo yemagnethi esisigxina yenziwe ikakhulu zii-stator, i-rotor kunye nezinto zezindlu. Njengee-motors ze-AC eziqhelekileyo, i-stator core yenziwe nge-laminated ukunciphisa ukulahleka kwesinyithi okubangelwa yi-eddy current kunye ne-hysteresis effect ngexesha lokusebenza kwemoto; ii-windings zihlala zinesakhiwo esilinganayo sesigaba sesithathu, kodwa ukhetho lweeparameter lwahlukile kakhulu. Inxalenye ye-rotor inesimo esahlukileyo, kubandakanya i-rotor yemagnethi esisigxina ene-starter squirrel-cage, kunye ne-rotor yemagnethi esisigxina efakwe ngaphakathi okanye ebekwe phezu kwayo. I-rotor core ingenziwa ngesakhiwo esiqinileyo okanye isakhiwo se-laminated. I-rotor ixhotyiswe ngezinto zemagnethi ezisisigxina, ezibizwa ngokuba yi-magnetic steel.
Phantsi kokusebenza okuqhelekileyo kwemoto yemagnethi esisigxina, amasimi emagnethi erotor kunye ne-stator akwimeko yokuvumelanisa. Akukho mbane obangelwayo kwinxalenye yerotor, kwaye ngaloo ndlela akukho lahleko yerotor copper okanye i-hysteresis kunye nokulahleka kwe-eddy current. Akukho mfuneko yokuqwalasela ingxaki yokuvelisa ubushushu ebangelwa kukulahleka kwerotor. Ngokubanzi, iimoto zemagnethi ezisisigxina ziqhutywa zii-frequency converters ezizinikeleyo, ezinomsebenzi wokuqalisa othambileyo. Ukongeza, iimoto zemagnethi ezisisigxina ziimoto ezihambelanayo kwaye zineempawu zeemoto ezihambelanayo kangangokuba i-power factor inokulungiswa kwixabiso elichaziweyo ngamandla okuvuselela. Ke ngoko, i-power factor inokuyilwa kwixabiso elifunekayo.
Ngokwembono yokuqalisa, ngenxa yemeko yokwenyani apho iimoto zemagnethi ezisisigxina ziqalwa ngamandla okuguqula amaza okanye ii-frequency converters ezifanayo, inkqubo yokuqalisa iimoto zemagnethi ezisisigxina kulula kakhulu ukuyifezekisa; ngokufanayo nokuqalisa iimoto zemagnethi ezisisigxina, ithintela iziphene zokuqala zeemoto eziqhelekileyo ze-squirrel-cage asynchronous.
Ukuqukumbela, ukusebenza kakuhle kunye namandla eemoto zemagnethi ezisisigxina zinokufikelela kumanqanaba aphezulu kakhulu. Ulwakhiwo lwazo lulula kakhulu kwaye bezithandwa kakhulu kwimarike kwiminyaka elishumi edlulileyo. Nangona kunjalo, impazamo ye-demagnetization yingxaki engenakuphepheka kwiimoto zemagnethi ezisisigxina. Xa umbane umkhulu kakhulu okanye ubushushu buphezulu kakhulu, ubushushu be-motor winding buya kunyuka ngokukhawuleza, umbane uya kwanda kakhulu, kwaye imagnethi esisigxina iya kwanda ngokukhawuleza. Kulawulo lweemoto zemagnethi ezisisigxina, kusetyenziswa isixhobo sokukhusela umbane ogqithisileyo ukuze kuthintelwe ingxaki yokutsha kwe-stator winding yemoto. Nangona kunjalo, oku kukhokelela ekususweni kombane kunye nokuvalwa kwezixhobo.
Ixesha leposi: Meyi-06-2025