Ntau lub tshuab thiab khoom siv, los ntawm cov rigs yooj yim rau cov neeg hlau ua kom hnyav, siv txhuam DC kom hloov lub zog hluav taws xob hloov kho. Brimless DC lub cev muaj zog, tseem hu ua BLDC MOTORS, muaj ntau qhov zoo dhau ntawm cov roj kiv txhuam DC cov motors. Bldc lub motors tau zoo dua thiab xav tau kev txij nkawm tsawg dua, thiab tau hloov cov motors txhuam hauv ntau daim ntawv thov.
Cov ntsiab cai ntawm kev ua haujlwm ntawm ob hom kev ua haujlwm zoo sib xws, thiab kev hloov pauv thiab rov ua dua ntawm cov hlau nplaum thiab cov hluav taws xob sib nqus. Tab sis txoj kev uas cov motors raug tswj tau yog txawv heev. BLDC yuav tsum muaj cov maub los los hloov ib qho DC qhov chaw rau hauv ib peb- lub motors voltage, hos} phahed motors tuaj yeem tswj hwm los ntawm kev tswj hwm qhov dc voltage.
Cov qauv ntawm Bldc lub cev muaj zog zoo ib yam li ntawm PMSM. Nws cov hlau nplaum tau muab tso rau ntawm lub rotor thiab yog txhais tias yog cov khoom siv synchronous. Nyob rau hauv ib lub cev muaj zog synchronous, lub rotor yog synchronous nrog lub stator sib nqus hlau, uas yog, lub rotor rotates nyob rau hauv tib lub nrawm raws li lub stator sib nqus.
Lawv qhov sib txawv tseem ceeb yog cov duab ntawm lawv cov nraub qaum hluav taws xob (rov qab EMF). Lub cev muaj zog ua haujlwm ua lub tshuab hluav taws xob vim nws yog spins. Hauv lwm lo lus, kev ua yeeb yam voltage yog tsim nyob rau hauv stator, uas yog rov qab rau kev tsav dav hlau ntawm lub cev muaj zog. Rov qab EMF yog tus yam ntxwv tseem ceeb ntawm lub cev muaj zog vim tias nws cov duab txiav txim siab cov algorithms uas yuav tsum muaj rau kev tswj hwm lub cev muaj zog.
Tus tsim qauv ntawm Bldc lub cev muaj zog ua nws txoj kev sib pauj tau tshwm sim Trapezoidal, yog li trapezoidal kev tswj xyuas tswj tau feem ntau siv. Bldc Trapezoidal Rov qab lub tshuab hluav taws xob hauv hluav taws xob ua kev txhawb nqa kev ua haujlwm.
