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Common motor control algorithms kwa BLDC brushless DC motors

Ma motors a Brushless DC amadziyendetsa okha (kutembenuka kwawokha), kotero ndizovuta kwambiri kuwongolera.
Kuwongolera kwagalimoto ya BLDC kumafuna kumvetsetsa kwa malo ozungulira komanso makina owongolera ndi kuwongolera kwagalimoto.Pakuwongolera liwiro lotsekeka, pali zofunika ziwiri zowonjezera kuti liwiro la rotor / kapena motor yamakono ndi chizindikiro cha PWM ziyesedwe kuti ziwongolere liwiro lagalimoto ndi mphamvu.
Yaing'ono brushless DC motorma motors angagwiritse ntchito zizindikiro za PWM za m'mphepete - kapena zapakati-pakatikati malinga ndi zofunikira za ntchito.Mapulogalamu ambiri amafunikira ntchito zosinthasintha zokha ndipo adzagwiritsa ntchito maulendo asanu ndi limodzi odziimira okha pa chizindikiro cha PWM.Izi zimapereka chigamulo chapamwamba kwambiri. mphamvu ya braking, kapena kutembenuza mphamvu, kugwiritsa ntchito chizindikiro cha PWM chothandizira pakati ndikulimbikitsidwa.
Kuti muzindikire malo ozungulira, BLDC imagwiritsa ntchito Hall effect sensor kuti ipereke mwayi wokwanira.Izi zimabweretsa kugwiritsa ntchito mizere yambiri komanso mtengo wapamwamba.Sensorless BLDC control imachotsa kufunikira kwa sensa ya Hall ndipo m'malo mwake imagwiritsa ntchito mphamvu yakumbuyo ya electromotive (EMF). ) ya galimoto kuti iwonetsere malo ozungulira.Kulamulira kosasunthika n'kofunikira pa ntchito zotsika mtengo zosinthasintha zothamanga monga mafani ndi mapampu.Pogwiritsa ntchito galimoto ya BLDC, firiji ndi air conditioning compressor amafunikanso kulamulira kopanda mphamvu.
Kuyika ndi kubwezeretsanso nthawi yopanda katundu
Ma motors ambiri a BLDC safuna PWM yowonjezera, kuyika nthawi yopanda katundu, kapena kubweza nthawi yopanda katundu.Mapulogalamu okha a BLDC omwe angafunike mawonekedwe awa ndi ma motors apamwamba a BLDC servo motors, ma sinusoidal okondwa a BLDC motors, brushless AC, kapena PC synchronous. magalimoto.
Control algorithm
Ma algorithms osiyanasiyana owongolera amagwiritsidwa ntchito kuti apereke kuwongolera kwa ma motors a BLDC. Nthawi zambiri, ma transistors amagetsi amagwiritsidwa ntchito ngati zowongolera zowongolera zowongolera magetsi.Njirayi siyothandiza poyendetsa ma motors amphamvu kwambiri.Ma motors amphamvu kwambiri ayenera kuyendetsedwa ndi PWM ndipo amafuna microcontroller kuti perekani zoyambira ndi zowongolera.