Umehluko Phakathi Kwama-Sensored and Sensorless Motors: Izici Eziyinhloko Nobudlelwane Bomshayeli
Amamotho azizwayo nangenazinzwa ayahluka endleleni abona ngayo indawo ye-rotor, okuthinta ukusebenzisana kwawo nomshayeli wemoto, okuthonya ukusebenza nokufaneleka kohlelo lokusebenza. Ukukhetha phakathi kwalezi zinhlobo ezimbili kuhlobene kakhulu nendlela ezisebenza ngayo nabashayeli bezimoto ukulawula isivinini kanye ne-torque.
Ama-Sensored Motors
Izinjini ezinzwayo zisebenzisa amadivayisi afana nezinzwa ze-Hall effect ukuqapha indawo ye-rotor ngesikhathi sangempela. Lezi zinzwa zithumela impendulo eqhubekayo kumshayeli wemoto, okuvumela ukulawula okunembile kusikhathi nesigaba samandla emoto. Kulokhu kusetha, umshayeli uthembele kakhulu olwazini oluvela ezinzwa ukuze alungise ukulethwa kwamanje, ukuqinisekisa ukusebenza kahle, ikakhulukazi phakathi nezimo zejubane eliphansi noma ukuqala kokumisa. Lokhu kwenza izinjini ezinzwayo zilungele izinhlelo zokusebenza lapho ukulawula okunembayo kubalulekile, njengamarobhothi, izimoto zikagesi, nemishini ye-CNC.
Ngenxa yokuthi umshayeli wemoto ohlelweni lwezinzwa uthola idatha eqondile mayelana nendawo yerotor, ingakwazi ukulungisa ukusebenza kwemoto ngesikhathi sangempela, inikeze ukulawula okukhulu phezu kwejubane netorque. Le nzuzo ibonakala ikakhulukazi ngesivinini esiphansi, lapho injini kufanele isebenze kahle ngaphandle kokuma. Kulezi zimo, ama-sensored motors ahamba phambili ngoba umshayeli angaqhubeka nokulungisa ukusebenza kwemoto ngokusekelwe kumpendulo yezinzwa.
Kodwa-ke, lokhu kuhlanganiswa okuseduze kwezinzwa kanye nomshayeli wemoto kwandisa ubunzima besistimu nezindleko. Amamotho azizwayo adinga izintambo ezengeziwe kanye nezingxenye, ezingagcini nje ngokuphakamisa izindleko kodwa futhi zandisa ingozi yokwehluleka, ikakhulukazi ezindaweni ezinonya. Uthuli, umswakama, noma amazinga okushisa adlulele angehlisa ukusebenza kwezinzwa, okungase kuholele ekuphenduleni okungalungile futhi okungase kuphazamise ikhono lomshayeli lokulawula injini ngempumelelo.
Ama-Sensorless Motors
Ngakolunye uhlangothi, amamotho angenazinzwa awanciki kuzinzwa zomzimba ukuthola indawo ye-rotor. Esikhundleni salokho, basebenzisa i-back electromotive force (EMF) ekhiqizwa njengoba i-motor spins ukulinganisa indawo ye-rotor. Umshayeli wemoto kulolu hlelo unomthwalo wemfanelo wokubona nokuhumusha isignali ye-EMF yangemuva, eba namandla njengoba injini inyuka ngesivinini. Le ndlela yenza uhlelo lube lula ngokuqeda isidingo sezinzwa zomzimba kanye nezintambo ezengeziwe, ukunciphisa izindleko nokuthuthukisa ukuqina ezindaweni ezifunayo.
Kumasistimu angenazinzwa, umshayeli wemoto udlala indima ebaluleke kakhulu njengoba kufanele alinganise indawo ye-rotor ngaphandle kwempendulo eqondile enikezwe izinzwa. Njengoba isivinini sikhuphuka, umshayeli angakwazi ukulawula injini ngokunembile ngokusebenzisa amasiginali e-EMF anamandla angemuva. Amamotho angenanzwa ngokuvamile asebenza kahle kakhulu ngesivinini esiphezulu, okuwenza abe yinketho edumile ezinhlelweni zokusebenza ezifana namafeni, amathuluzi kagesi, nezinye izinhlelo zesivinini esikhulu lapho ukunemba ngesivinini esiphansi kungabalulekile kangako.
I-drawback yama-motorless sensors ukusebenza kwawo okungalungile ngesivinini esiphansi. Umshayeli wemoto uzama kanzima ukulinganisa indawo ye-rotor lapho isignali ye-EMF yangemuva ibuthakathaka, okuholela ekungazinzini, ukuguquguquka, noma inkinga yokuqala injini. Kuzinhlelo zokusebenza ezidinga ukusebenza okushelelayo kwesivinini esiphansi, lo mkhawulo ungaba yinkinga ebalulekile, yingakho amamotho angenazinzwa angasetshenziswa kumasistimu adinga ukulawula okunembile kuzo zonke izivinini.
Isiphetho
Ubudlelwano phakathi kwamamotho nabashayeli buphakathi komehluko phakathi kwamamotho anenzwa kanye nama-sensorless motors. Amamotho azwiwayo ancike kumpendulo yesikhathi sangempela esuka kuzinzwa kuya kumshayeli wemoto, enikeza ukulawula okunembayo, ikakhulukazi ngesivinini esiphansi, kodwa ngezindleko eziphezulu. Amamotho angenazinzwa, nakuba elula futhi ebiza kakhulu, ancike kakhulu ekhonweni lomshayeli lokuhumusha amasiginali we-EMF abuyele emuva, asebenza kahle kakhulu ngesivinini esiphezulu kodwa azabalaza ngesivinini esiphansi. Ukukhetha phakathi kwalezi zinketho ezimbili kuncike ezimfuneko zokusebenza ezithile zohlelo, isabelomali, nezimo zokusebenza.
Isikhathi sokuthumela: Oct-16-2024