Nyob rau xyoo tas los no, lub zog hnub ci tau txais kev nyiam dav dav ua lub zog huv thiab rov ua dua tshiab. Raws li ntau tus tib neeg thiab cov lag luam tig mus rau lub zog hnub ci, nws yog qhov tseem ceeb kom nkag siab txog cov khoom tseem ceeb ntawm lub hnub ci. Ib qho ntawm cov khoom tseem ceeb yog lub hnub ci inverter. Hauv tsab xov xwm no, peb yuav tshawb nrhiav kev ua haujlwm ntawm lub hnub ci inverter hauv lub hnub ci thiab nws qhov tseem ceeb hauv kev hloov lub zog hnub ci mus rau hauv hluav taws xob siv tau.
Lub inverter hnub ci, tseem hu ua photovoltaic inverter, yog ib lub cuab yeej hluav taws xob uas hloov cov hluav taws xob ncaj qha (DC) uas tsim los ntawm cov vaj huam sib luag hnub ci mus rau hauv cov hluav taws xob hloov pauv (AC). Qhov kev hloov pauv no yog qhov tsim nyog vim tias feem ntau cov khoom siv hauv tsev thiab lub network hluav taws xob khiav ntawm lub zog AC. Yog li ntawd, cov inverters hnub ci ua lub luag haujlwm tseem ceeb hauv kev ua kom lub zog hnub ci muaj txiaj ntsig rau kev siv txhua hnub.
Lub luag haujlwm tseem ceeb ntawm lub hnub ci inverter yog los ua kom zoo dua qhov kev ua tau zoo ntawm cov vaj huam sib luag hnub ci thiab xyuas kom muaj zog ntau tshaj plaws. Cov vaj huam sib luag hnub ci tsim cov hluav taws xob ncaj qha thaum raug tshav ntuj. Txawm li cas los xij, DC no tsis haum rau kev siv hluav taws xob rau cov khoom siv hauv tsev lossis pub rau hauv lub network. Cov inverters hnub ci daws qhov teeb meem no los ntawm kev hloov hluav taws xob DC mus rau hauv hluav taws xob AC, uas tuaj yeem siv los siv hluav taws xob rau cov tsev, cov lag luam, lossis txawm tias tag nrho cov zej zog.
Lwm lub luag haujlwm tseem ceeb ntawm lub hnub ci inverter yog saib xyuas thiab tswj cov hluav taws xob ntws hauv lub hnub ci. Nws ua haujlwm zoo li lub hlwb ntawm lub cev, saib xyuas tas li qhov voltage, tam sim no thiab zaus ntawm cov hluav taws xob tsim tawm. Qhov kev saib xyuas no tso cai rau lub inverter kom ntseeg tau tias cov vaj huam sib luag hnub ci ua haujlwm ntawm qhov zoo tshaj plaws thiab lub zog tsim tawm ruaj khov thiab muaj kev nyab xeeb.
Tsis tas li ntawd xwb, cov inverters hnub ci muaj cov yam ntxwv siab heev uas txhim kho kev ua haujlwm thiab kev nyab xeeb ntawm koj lub hnub ci. Ib qho ntawm cov yam ntxwv no yog Maximum Power Point Tracking (MPPT), uas ua kom lub zog tso zis ntawm cov vaj huam sib luag hnub ci zoo dua los ntawm kev kho qhov voltage thiab tam sim no tas li. MPPT ua kom ntseeg tau tias cov vaj huam sib luag hnub ci ib txwm ua haujlwm ntawm lawv qhov tso zis hluav taws xob siab tshaj plaws, txawm tias nyob rau hauv huab cua sib txawv.
Tsis tas li ntawd xwb, cov inverters hnub ci ua lub luag haujlwm tseem ceeb hauv cov kab ke hnub ci uas txuas nrog lub grid. Hauv cov kab ke no, lub zog ntau dhau los ntawm cov vaj huam sib luag hnub ci tuaj yeem pub rov qab rau hauv lub grid, khwv tau cov qhab nia lossis txo cov nqi hluav taws xob. Cov inverters hnub ci pab txhawb cov txheej txheem no los ntawm kev sib dhos cov hluav taws xob hloov pauv uas tsim los ntawm cov vaj huam sib luag hnub ci nrog lub zog thiab zaus ntawm lub grid. Nws ua kom ntseeg tau tias lub zog pub rau hauv lub grid yog sib dhos nrog cov khoom siv tseem ceeb, ua rau lub zog hnub ci tuaj yeem koom ua ke rau hauv cov khoom siv hluav taws xob uas twb muaj lawm.
Lub hnub ci inverter yog ib feem tseem ceeb ntawm lub hnub ci. Nws lub luag haujlwm tseem ceeb yog hloov DC lub zog uas tsim los ntawm cov vaj huam sib luag hnub ci mus rau hauv AC lub zog rau kev siv txhua hnub. Tsis tas li ntawd, cov hnub ci inverters kuj saib xyuas thiab tswj cov dej ntws hauv lub cev, ua kom zoo dua cov vaj huam sib luag hnub ci, thiab xyuas kom muaj kev nyab xeeb thiab ruaj khov ntawm kev tsim hluav taws xob. Nrog rau cov yam ntxwv siab heev xws li MPPT thiab kev sib txuas ntawm lub grid, cov hnub ci inverters ua lub luag haujlwm tseem ceeb hauv kev ua kom muaj txiaj ntsig zoo tshaj plaws thiab kev koom ua ke lub zog hnub ci rau hauv peb lub zog. Raws li qhov kev thov rau lub zog huv thiab rov ua dua tshiab txuas ntxiv mus, qhov tseem ceeb ntawm cov hnub ci inverters hauv kev siv lub zog ntawm lub hnub tsis tuaj yeem hais dhau.
Lub sijhawm tshaj tawm: Lub Ib Hlis-24-2024