Dab tsi yog qhov txawv ntawm Sensored Brushless Tsav thiab Sensorless Brushless Tsav
Dec 13, 2023
Dab tsi yog Sensored Brushless DC Tsav?
A sensored brushless DC lub cev muaj zogyog ib hom kev siv hluav taws xob siab heev uas suav nrog cov sensors rau kev txhim kho kev tswj thiab kev ua haujlwm. Cov sensors feem ntau ua haujlwm hauv sensored BLDC motors yog Hall effect sensors. Hall sensors tuaj yeem txiav txim siab qhov chaw ntawm lub sijhawm tiag tiag ntawm lub cev tsis muaj zog rotor los ntawm kev ntsuas lub zog thiab kev taw qhia ntawm thaj chaw sib nqus nyob ze. Qhov no muab cov lus qhia tseem ceeb rau kev tswj hwm lub cev muaj zog, ua kom lub cev hloov kho tam sim no thiab sib nqus teb raws li xav tau rau kev ua haujlwm zoo, ruaj khov. Brushless motors nrog Hall sensors qhia txog kev ua tau zoo hauv cov xwm txheej xws li pib, nres thiab ua haujlwm qis.
Tsis tas li ntawd, Hall sensors ua lub luag haujlwm tseem ceeb hauv kev muab cov ntaub ntawv ceev. Los ntawm kev saib xyuas cov paib mem tes tso tawm los ntawm Hall sensors, lub tshuab tswj lub cev muaj peev xwm ntsuas qhov ceev ntawm lub cev muaj zog. Qhov no yog ib qho tseem ceeb rau cov ntawv thov uas xav tau kev hloov kho ceev hauv lub sijhawm!
Dab tsi yog Sensorless DC Tsav?
Lo lus "sensorless" hauv sensorless brushless hais txog qhov tsis muaj Hall sensors. Nyob rau hauv qhov tsis muaj kev tawm tswv yim ncaj qha, lub cev muaj zog tsis muaj lub cev tsis muaj zog txiav txim siab txoj haujlwm rotor tsis ncaj. Ntau txoj hauv kev, suav nrog lub nraub qaum electromotive force, inductance, flux linkage, high-frequency mem tes, thiab cov tswv yim ntse, tuaj yeem ua haujlwm. Txoj kev tshaj plaws yog qhov rov qab electromotive force mus kom ze.
Thaum lub sij hawm pib, lub sensorless brushless lub cev muaj zog tsis muaj kev paub txog lub rotor lub magnetic ncej orientation. Nws pib cov lus tsa suab los ntawm kev hloov kho tam sim no, zoo li kev kwv yees. Nws thiaj li, lub rotor pib tig, tso cai rau lub cev muaj zog los xam nws txoj hauj lwm raws li cov kev hloov tam sim no thiab tom qab ntawd tswj cov tam sim no thiab cov kev taw qhia.
Nyob rau hauv sib piv rau sensored brushless motors, uas siv sensors ascertain rotor magnetic ncej orientation instantly thaum pib, sensorless brushless motors tsis muaj cov ntaub ntawv no. Yog li ntawd, lawv yuav tsum hloov kho los ntawm kev kho tam sim no randomly kom txog thaum lub rotor pib txav mus. Qhov "kev twv" lub tswv yim no nws thiaj li tso cai rau lub cev muaj zog los xam rotor txoj hauj lwm, ua kom yooj yim rau kev tswj xyuas tam sim no thiab kev taw qhia.
Tsis zoo li sensored motors, sensorless brushless motors qhia silence ntawm qis speeds vim lawv tsis tsim ib tug nruam suab txuam nrog me me tam sim no. Qhov kev sib txawv no piav qhia tias vim li cas cov motors sensored feem ntau emit ib lub suab nrov tsis tu ncua ntawm qhov ceev, thaum sensorless brushless motors tsis ua.
Daim ntawv thov sib txawv
Daim ntawv thov sib txawv ntawm Sensored Brushless DC (BLDC) motors thiab Sensorless Brushless DC (BLDC) motors yog qhov tseem ceeb thiab ua raws li cov kev cai tshwj xeeb hauv ntau qhov kev lag luam. Sensored BLDC motors, nruab nrog txoj hauj lwm sensors zoo li Hall effect sensors, feem ntau nyiam nyob rau hauv daim ntawv thov xav kom meej tswj, tshwj xeeb tshaj yog nyob rau hauv qis speeds. Kev lag luam xws li neeg hlau, cov cuab yeej kho mob, thiab aerospace, qhov tseeb thiab kev ntseeg siab yog qhov tseem ceeb, tau txais txiaj ntsig los ntawm kev txhim kho kev ua tau zoo ntawm sensored BLDC motors. Cov sensors muab cov lus teb rau lub sijhawm tiag tiag ntawm lub rotor txoj haujlwm, ua rau tus maub los ua kev hloov kho sai thiab raug, ua rau kev ua haujlwm zoo dua thiab txhim kho kev ua haujlwm. Txawm li cas los xij, cov sensors ntxiv ua rau cov nqi siab dua thiab nce qhov nyuaj.
Ntawm qhov tod tes, Sensorless BLDC motors tau txais kev pom zoo hauv cov ntawv thov uas yooj yim, siv tau zoo, thiab kev ntseeg tau yog qhov tseem ceeb. Cov motors no siv cov txheej txheem siab tshaj plaws los kwv yees txoj haujlwm rotor yam tsis muaj kev cia siab rau cov khoom siv sab nraud, ua rau lawv tsim nyog rau kev siv xws li cov khoom siv hauv tsev, HVAC systems, thiab cov cuab yeej hluav taws xob. Qhov tsis muaj cov sensors ntxiv txo qhov kev nyuaj tag nrho thiab tus nqi ntawm lub cev muaj zog, ua rau lub cev tsis muaj zog BLDC yog qhov kev xaiv ua tau zoo hauv cov xwm txheej uas qhov kev tswj hwm txoj haujlwm tsis yog qhov tseem ceeb, thiab kev tsim qauv ncaj ncees thiab tus nqi zoo dua.