Raws li lub zog ntawm cov khoom siv hluav taws xob lossis ntau lub tshuab, lub luag haujlwm tseem ceeb ntawm lub cev muaj zog yog ua rau lub zog ntawm lub zog tsav.

Txawm hais tias lub planetary reducer feem ntau yog siv ua ke nrog servo motors thiab stepper motors, kev paub txog cov motors tseem nrov heev.Yog li ntawd, kuv tau ua siab ntev pom qhov "cov ntsiab lus ntawm lub cev muaj zog tshaj plaws hauv keeb kwm".Rov qab los qhia rau sawv daws.

Brushless Direct Current Motor (BLDCM) tshem tawm ntawm qhov tsis txaus ntawm cov DC lub cev muaj zog thiab hloov cov tshuab hluav taws xob rotors nrog cov khoom siv hluav taws xob lub cev muaj zog.Yog li ntawd, brushless direct tam sim no motors muaj cov yam ntxwv sib txawv ntawm qhov ceev thiab lwm yam ntxwv ntawm DC motors.Nws kuj muaj qhov zoo ntawm cov qauv yooj yim ntawm kev sib txuas lus AC lub cev muaj zog, tsis muaj hluav taws xob sib txuas, kev lag luam txhim khu kev qha thiab kev saib xyuas yooj yim.
Cov hauv paus ntsiab lus thiab optimization algorithms.

BLDC lub cev muaj zog tswj kev tswj hwm txoj haujlwm thiab cov txheej txheem ntawm lub cev muaj zog rotor uas lub cev muaj zog tsim rau hauv lub rectifier.Rau kev kaw-loop tswj tus nqi tswj hwm, muaj ob txoj cai ntxiv, uas yog, ntsuas qhov tseeb ntawm lub cev muaj zog rotor ceev / lossis lub cev muaj zog tam sim no thiab nws cov teeb liab PWM los tswj cov zis hluav taws xob ntawm lub cev muaj zog.

Lub BLDC lub cev muaj zog tuaj yeem xaiv sab ib ntus lossis lub chaw tswj hwm kom ua raws PWM teeb liab raws li daim ntawv thov kev cai.Cov ntawv thov feem ntau tsuas yog hloov qhov kev ua haujlwm tiag tiag ntawm tus nqi teev tseg, thiab 6 qhov sib txawv ntawm ntug-sequencing PWM cov cim yuav raug xaiv.Qhov no qhia tau hais tias qhov siab tshaj plaws kev daws teeb meem.Yog tias koj siv lub network neeg rau zaub mov uas tau teev tseg rau qhov tseeb qhov chaw, siv lub zog siv hluav taws xob lossis kev tsav tsheb rov qab, nws raug nquahu kom siv lub chaw tswj hwm kom ua tiav PWM teeb liab.

Txhawm rau kom zoo dua qhov rotor ib feem ntawm cov hlau nplaum induction lub cev muaj zog, BLDC lub cev muaj zog siv Hall-effect sensor los qhia qhov tseeb qhov chaw sib nqus induction.Qhov no ua rau muaj kev siv ntau dua thiab cov nqi ntau dua.Inductorless BLDC kev ua haujlwm tshem tawm qhov xav tau ntawm Hall cov ntsiab lus, thiab tsuas yog xaiv tus kheej-induced electromotive force (induced electromotive force) ntawm lub cev muaj zog los kwv yees thiab txheeb xyuas qhov rotor ib feem ntawm lub cev muaj zog.Kev ua haujlwm tsis muaj qhov tsis hnov ​​​​tsw yog qhov tseem ceeb tshwj xeeb rau cov ntawv thov kev tswj hwm tus nqi qis xws li cov kiv cua txias thiab cov twj tso kua mis.Thaum siv BLDC motors, tub yees thiab compressors yuav tsum tau ua tsis muaj inductors.Ntxig thiab sau lub sijhawm ua haujlwm puv sijhawm
Feem ntau BLDC motors tsis xav tau PWM ntxiv, lub sijhawm thauj khoom tag nrho lossis kev them nyiaj puv sijhawm.Nws yog qhov zoo tshaj plaws uas BLDC daim ntawv thov nrog cov yam ntxwv no tsuas yog kev ua haujlwm siab BLDC servo motors, sine-wave txhawb BLDC motors, brushed motors AC, lossis PC synchronous motors.

Ntau yam kev tswj hwm sib txawv yog siv los qhia txog kev tswj hwm ntawm BLDC motors.Feem ntau, cov zis hluav taws xob transistor yog siv los ua cov kab hluav taws xob tswj hluav taws xob los tswj cov kev ua haujlwm ntawm lub cev muaj zog.Hom qauv no tsis yooj yim rau siv thaum tsav tsheb lub cev muaj zog.Lub tshuab hluav taws xob siab yuav tsum tau ua los ntawm PWM, thiab microprocessor yuav tsum tau teev tseg los qhia qhov pib thiab tswj cov haujlwm.

Lub kaw lus tswj yuav tsum qhia peb lub luag haujlwm hauv qab no:

PWM kev khiav hauj lwm voltage siv los tswj qhov ceev ntawm lub cev muaj zog;

Lub kaw lus siv los hloov lub cev mus rau hauv lub rectifier;

Siv nws tus kheej induced electromotive quab yuam los yog Hall lub caij los twv thiab txheeb xyuas txoj kev ntawm lub cev muaj zog rotor.

Lub pulse dav hloov pauv tsuas yog siv los siv qhov sib txawv ntawm qhov ua haujlwm voltage rau lub cev muaj zog winding.Qhov tsim nyog ua haujlwm voltage yog qhov zoo sib xws nrog PWM lub luag haujlwm voj voog.Thaum tau txais kev hloov kho rectifier kom raug, qhov torque tus yam ntxwv ntawm BLDC yog tib yam li cov nram qab no DC motors.Qhov sib txawv ntawm kev khiav hauj lwm voltage tuaj yeem siv los tswj qhov nrawm thiab hloov pauv torque ntawm lub cev muaj zog.