01. MTPA thiab MTPV
Cov hlau nplaum tas mus li synchronous lub cev muaj zog yog lub hauv paus tsav tsheb ntawm lub zog tshiab lub tsheb fais fab nroj tsuag hauv Suav teb. Nws yog paub zoo tias nyob rau hauv qis speeds, mus tas li hlau nplaum synchronous lub cev muaj zog txais qhov siab tshaj plaws torque tam sim no piv tswj, uas txhais tau hais tias muab ib tug torque, qhov tsawg kawg nkaus synthesized tam sim no yog siv los ua kom tiav nws, yog li txo qis tooj liab.
Yog li ntawm kev kub ceev, peb tsis tuaj yeem siv MTPA nkhaus rau kev tswj, peb yuav tsum siv MTPV, uas yog qhov siab tshaj plaws torque voltage piv, rau kev tswj. Uas yog hais, ntawm ib tug tej yam ceev, ua rau lub cev muaj zog tso zis lub siab tshaj plaws torque. Raws li lub tswv yim ntawm kev tswj tiag tiag, muab lub zog torque, qhov siab tshaj plaws tuaj yeem ua tiav los ntawm kev kho iq thiab id. Yog li qhov twg yog qhov voltage reflected? Vim qhov no yog qhov siab tshaj plaws ceev, lub voj voog voltage txwv yog tsau. Tsuas yog los ntawm kev nrhiav lub zog siab tshaj plaws ntawm lub voj voog txwv no tuaj yeem pom qhov siab tshaj plaws torque point, uas txawv ntawm MTPA.
02. Kev tsav tsheb
Feem ntau, ntawm qhov hloov pauv ceev (tseem hu ua lub hauv paus tshaj tawm), cov hlau nplaum pib tsis muaj zog, uas yog point A1 hauv daim duab hauv qab no. Yog li ntawd, nyob rau lub sijhawm no, qhov rov qab electromotive quab yuam yuav loj heev. Yog hais tias lub magnetic teb tsis muaj zog nyob rau hauv lub sij hawm no, piv txwv li, lub laub laub yuav tsum tau mus nce lub ceev, nws yuav yuam iq kom tsis zoo, tsis muaj peev xwm tso zis rau pem hauv ntej torque, thiab yuam kom nkag mus rau hauv lub hwj chim tiam. Tau kawg, qhov taw tes no tsis tuaj yeem pom ntawm daim duab no, vim tias lub ellipse yog shrinking thiab tsis tuaj yeem nyob ntawm point A1. Peb tsuas tuaj yeem txo iq raws lub ellipse, nce id, thiab mus ze rau point A2.
03. Cov xwm txheej tsim hluav taws xob
Vim li cas lub zog tsim hluav taws xob kuj xav tau cov hlau nplaum tsis muaj zog? Yuav tsum tsis muaj zog hlau nplaum siv los tsim cov iq loj thaum tsim hluav taws xob ntawm kev kub ceev? Qhov no tsis tuaj yeem ua tau vim tias thaum muaj kev kub ceev, yog tias tsis muaj qhov tsis muaj zog sib nqus, qhov rov qab electromotive quab yuam, transformer electromotive quab yuam, thiab impedance electromotive quab yuam yuav loj heev, nyob deb tshaj lub hwj chim mov voltage, ua rau muaj kev txaus ntshai. Qhov teeb meem no yog SPO uncontrolled rectification fais fab tuag! Yog li ntawd, nyob rau hauv high-ceev fais fab tuag, tsis muaj zog magnetization yuav tsum tau nqa tawm, thiaj li hais tias lub generated inverter voltage yog tswj.
Peb tuaj yeem txheeb xyuas nws. Piv txwv tias braking pib ntawm high-ceev khiav hauj lwm point B2, uas yog tawm tswv yim braking, thiab lub ceev txo, tsis tas yuav muaj zog hlau nplaum. Thaum kawg, ntawm taw tes B1, iq thiab id tuaj yeem nyob tas li. Txawm li cas los xij, raws li qhov ceev txo qis, qhov tsis zoo iq generated los ntawm qhov rov qab electromotive quab yuam yuav ua tsawg thiab tsawg txaus. Lub sijhawm no, kev them nyiaj hluav taws xob yuav tsum tau nkag mus rau lub zog siv braking.
04. Cov lus xaus
Thaum pib ntawm kev kawm hluav taws xob motors, nws yog ib qho yooj yim uas yuav tsum tau nyob ib puag ncig ntawm ob qhov xwm txheej: tsav tsheb thiab tsim hluav taws xob. Qhov tseeb, peb yuav tsum xub kos lub voj voog MTPA thiab MTPV hauv peb lub hlwb, thiab lees paub tias iq thiab id nyob rau lub sijhawm no yog qhov tseeb, tau los ntawm kev txiav txim siab rov qab electromotive quab yuam.
Yog li, xws li seb iq thiab id feem ntau yog tsim los ntawm lub zog los yog los ntawm kev rov qab electromotive quab yuam, nws nyob ntawm inverter kom ua tiav cov kev cai. iq thiab id kuj muaj kev txwv, thiab kev tswj tsis tuaj yeem tshaj ob lub voj voog. Yog tias lub voj voog txwv tam sim no dhau lawm, IGBT yuav raug puas tsuaj; Yog tias lub voj voog hluav taws xob tsawg dhau lawm, lub zog hluav taws xob yuav raug puas tsuaj.
Hauv cov txheej txheem ntawm kev hloov kho, lub hom phiaj iq thiab id, nrog rau qhov tseeb iq thiab id, yog qhov tseem ceeb. Yog li ntawd, calibration txoj kev yog siv nyob rau hauv engineering los calibrate qhov tsim nyog faib piv ntawm iq tus id ntawm txawv speeds thiab lub hom phiaj torques, thiaj li yuav ua tau qhov zoo tshaj plaws efficiency. Nws tuaj yeem pom tias tom qab ncig ncig, qhov kev txiav txim zaum kawg tseem nyob ntawm qhov kev ntsuas engineering.
Lub sij hawm xa tuaj: Dec-11-2023
