Qhov ob, qhov tseem ceeb ntawm kev ua qoj yuam kev
txoj haujlwm ua haujlwm:
Feem ntau lub rotor ntawm lub cav yog ib qho chaw ruaj khov, thiab thaum twg tam sim no ntws los ntawm stator winding, stator winding generates vector magnetic field. Lub sib nqus ntawm lub cav ua rau lub rotor tig tig lub kaum sab xis xws li hais tias qhov khub ntawm hlau khawm hauv rotor coincide nrog cov kev taw qhia ntawm lub tshav dav hlau ntawm tus stator. Thaum tus stator vector magnetic teb yog tig los ntawm lub kaum sab xis. Lub rotor kuj hloov lub kaum sab xis nrog lub sib nqus field. Txhua lub sij hawm ib qho hluav taws xob mem tes yog cov khoom siv, lub tshuab tig lub kaum ntxiv. Qhov kev xaav ntawm cov zis yog proportional rau pes tsawg tus input pulses, thiab cov kev sib hloov yog proportional rau cov mem tes zaus. Hloov qhov kev txiav txim uas cov cua daj cua dub ua rau lub zog, lub cav yuav rov qab. Vim li no, pes tsawg tus tswj cov tshuaj pulses, qhov tsawg, thiab qhov sib koom ua ke ntawm cov cua ntawm txhua theem ntawm lub tshuab yuav siv los tswj cov kev sib hloov ntawm kev ua haujlwm ntawm kev ua haujlwm.
Lub hauv paus ntawm kev kub taub hau:
Ntau hom kev sib tw muaj feem pom muaj iron cores thiab winding coils sab hauv. Lub winding tau ua hauj lawm, thiab lub hwj chim yuav ua kom poob. Qhov poob yog proportional rau lub xwmfab ntawm qhov tsis kam thiab tam sim no. Qhov no yog qhov tooj poob peb feem ntau hais. Yog hais tias tsis yog tam sim no tsis yog tus qauv DC los sis sine wave, qhov kev sib raug zoo yuav tshwm sim. Cov tub ntxhais muaj hysteresis. Qhov teebmeem tam sim no tseem ua rau poob rau hauv qhov sib txawv ntawm qhov chaw magnetic, thiab nws qhov ntau yog muaj feem xyuam rau cov khoom siv, tam sim no, zaus, thiab qhov hluav taws xob. Qhov no hu ua hlau poob. Ob leeg tooj liab thiab hlau poob yog pom nyob rau hauv daim ntawv ntawm tshav kub, uas cuam tshuam qhov ua tau zoo ntawm lub tshuab. Stepper motors feem ntau nrhiav qhov tseeb qhov tseeb thiab lub zog ntawm lub zog, qhov ua tau zoo yog qhov tsawg, qhov tam sim no feem ntau yog loj, thiab qhov sib xyaw harmonic Cheebtsam yog siab, thiab qhov sib txawv ntawm qhov hloov tam sim no kuj txawv nrog kev sib hloov ceev. Vim li no, lub tshuab hluav taws xob feem ntau muaj qhov kub tob hau, thiab qhov teeb meem no feem ntau. AC tsav yog loj heev.
