1. Lub cev muaj zog ntawm lubNruab nrab-qhov loj me DC mus tas li hlau nplaum lub cev muaj zog:
Lub stator winding yog ib qho concentrated winding, thiab cov hlau nplaum ruaj khov rotor ua ib qho square yoj magnetic teb;lub cev lub cev muaj zog ntawm cov hlau nplaum ruaj khov synchronous lub cev muaj zog: lub stator winding yog ib qho kev sib faib winding, thiab cov hlau nplaum ruaj khov rotor ua ib qho zoo sib nqus magnetic;
2. Txoj hauj lwm sensor ntawm brushless DC lub cev muaj zog:
Kev daws teeb meem tsawg, 60 degree daws teeb meem, Hall caij, electromagnetic hom, photoelectric hom;Txoj hauj lwm sensor ntawm tas mus li hlau nplaum synchronous lub cev muaj zog: siab daws teeb meem, 1/256, 1/1024, daws teeb meem, optical code disk;
3. Kev tswj sib txawv:
Nruab nrab-qhov loj me DC lub cev muaj zog ruaj khov: 120 degree square yoj tam sim no, siv PWM tswj;
Cov hlau nplaum ruaj khov synchronous lub cev muaj zog: Sine yoj tam sim no, SPWM SVPWM tswj.
Nruab nrab-qhov loj me DC mus tas li hlau nplaum lub cev muaj zog: Cov hlau nplaum yog magnetized los ntawm square yoj, tswj voltage PWM kuj yog ib tug square nthwv dej, thiab tam sim no kuj yog ib tug square yoj.Muaj 6 qhov chaw vectors hauv ib lub voj voog hluav taws xob.Kev tswj tau yooj yim, tus nqi qis, thiab MCU dav dav tuaj yeem pom tau.
Cov hlau nplaum ruaj khov synchronous lub cev muaj zog: Cov hlau nplaum yog magnetized los ntawm sine yoj, lub nraub qaum electromotive quab yuam kuj yog sine yoj, thiab tam sim no kuj yog sine yoj.Vector tswj tshuab feem ntau yog siv, thiab feem ntau muaj tsawg kawg yog 18 vectors nyob rau hauv lub voj voog hluav taws xob (tau kawg, qhov ntau qhov zoo dua), uas tuaj yeem paub tau los ntawm kev ua haujlwm siab MCU lossis DSP.
DC Servo: Qhov no yog qhov dav heev.DC servo yog hais txog kev tswj hwm ntawm DC lub cev muaj zog thiab tom qab ntawd cov kev tswj hwm, raws li cov lus qhia tswj (ceev, txoj hauj lwm, lub kaum sab xis, thiab lwm yam) los ua, feem ntau yog siv rau actuators.
1. Qhov txawv ntawm sensors:
Medium-loj DC mus tas li hlau nplaum lub cev muaj zog (BLDC): txoj hauj lwm sensor, xws li Hall, thiab lwm yam .;
Cov hlau nplaum tas mus li synchronous lub cev muaj zog (PMSM): ceev thiab txoj hauj lwm sensors, xws li kev daws teeb meem, photoelectric encoders, thiab lwm yam.;
2. Lub nraub qaum EMF waveform yog txawv:
BLDC: kwv yees trapezoidal nthwv dej (zoo tagnrho lub xeev);
PMSM: Sine yoj (lub xeev zoo tagnrho
Peb, theem tam sim no waveform txawv:
BLDC: kwv yees square nthwv dej lossis trapezoidal yoj (lub xeev zoo tagnrho);
PMSM: Sine yoj (lub xeev zoo tagnrho
Plaub, qhov sib txawv ntawm kev tswj qhov system:
BLDC: feem ntau suav nrog txoj haujlwm tswj, tswj ceev thiab tam sim no (torque) tswj;
PMSM: Cov tswv yim tswj sib txawv yuav muaj cov txheej txheem tswj sib txawv;
5. Qhov txawv ntawm cov qauv tsim thiab cov txheej txheem:
BLDC: nthuav dav qhov dav ntawm lub nraub qaum-EMF waveform kom ntau li ntau tau (ua rau kwv yees li tus ntaiv nthwv dej);
PMSM: Ua kom rov qab EMF ze rau sine yoj;
Reflected nyob rau hauv tus tsim yog qhov sib txawv ntawm stator winding thiab rotor qauv (xws li ncej arc coefficient).
与此原文有关的更多信息要看其他翻译信息，您必须输入相应原文
Post lub sij hawm: Aug-20-2021