Thaum cov roj- tua lub tshuab hluav taws xob ntawm Kauaʻi Island tawm mus offline ua ntej kaj ntug ib tag kis sawv ntxov thaum xyoo 2021, daim phiaj zaus poob, tab sis cov roj teeb ntawm plaubhnub ci roj teeb ciacov nroj tsuag feem ntau ua tau zoo, raws li kev tshawb xyuas qhib - nkag.
Covhnub ci roj teeb ciamuab cov lus teb ceev ceev hauv 50 milliseconds, muaj cov zaus poob hauv 1.5 vib nas this, thiab coj qhov zaus rov qab mus rau 60 Hz hauv ib feeb.
Tseem, muaj teeb meem, vim muaj zaus oscillations thaum thawj feeb, nws tshwm sim ntau heev nyob rau hauvhnub ci mini daim phiaj rooj plaub.
Qhov teeb meem tshwm sim los ntawm qhov txwv tsis pub ua haujlwm ntawm cov inverter siv ntawm lubhnub ci roj teeb ciacov nroj tsuag, nrog peb ntawm cov nroj tsuag siv inverters nrog kab sib chaws - ua raws li kev tswj hwm.
"Thaum qhov kev cuam tshuam no tsis yog kev puas tsuaj, nws yog ib qho kev ceeb toom," National Laboratory of the Rockies (NLR) tau hais hauv tsab ntawv tsis ntev los no.
Txhawm rau tiv thaiv qhov teeb meem tsis tuaj yeem tshwm sim, Kaua'i Island Utility Cooperative tau ua haujlwm nrog National Renewable Energy Laboratory (tam sim no NLR) thiab lwm tus neeg koom tes los txhawb nqa cov txheej txheem tshawb xyuas thiab kev sim, raws li tau piav qhia hauv NLR tshaj tawm.
Qhov tshwm sim yog tias kev koom tes siv hluav taws xob hloov mus rau kab sib chaws- tsim kev tswj hwm ntawm nws lub hnub ci- ntxiv rau- cov nroj tsuag khaws cia, muab cov khoom siv hluav taws xob los hloov lub tshuab hluav taws xob lossis kev sib hloov inertia ntawm fossil - hluav taws xob hluav taws xob.
Ib daim phiaj- tsim inverter ua haujlwm los ntawm kev tuav "nws tus kheej zaus thiab qhov hluav taws xob tsis tu ncua," said Andy Hoke, tus kws tshaj lij ntawm NLR. Nws tau pab Kauaʻi cov nqi hluav taws xob txheeb xyuas cov kab sib chaws - tsim cov teeb tsa inverter lawv xav tau "kom rov ua kom lub zog ntawm daim phiaj," tus ncej hais.
Tseeb tiag, thaum tib cov roj- tua lub tshuab hluav taws xob uas tau tawm mus offline ua ntej rov qab rov qab rau xyoo 2023, tsis muaj qhov oscillation tshwm sim.
Pab pawg NLR tom qab ntawd sim ntxiv cov inverter uas muaj peev xwm tshiab, xa, nrog rau kev tso cai siv hluav taws xob, "me me pulses" los ntawm Kauaʻi daim phiaj thiab ntsuas pulse nrog kev cai sensors.
Raws li qhov tshwm sim ntawm qhov kev sim no, "peb pom tias daim phiaj- tsim cov inverter- raws li cov peev txheej tau txhim kho daim phiaj kev ruaj ntseg," said Jin Tan, tus thawj coj ntawm NLR.
Cov txheej txheem kev sim ua tiav suav nrog lub khoos phis tawj qauv ntawm Kauaʻi daim phiaj, lub cev rov ua dua - tsim daim phiaj ntawm NLR lub tsev kawm ntawv, thiab kev cai ntsuas ntawm Kauaʻi daim phiaj tiag tiag.
Cov haujlwm ntawd tau pab qhia txog kev ua haujlwm ntawm UNIFI Consortium, uas tswj hwm kev lag luam kev nce qib ntawm daim phiaj - tsim software rau inverters, raws li NLR Power Systems Engineering Center Tus Thawj Coj Benjamin Kroposki tau koom nrog Kauaʻi project thiab coj UNIFI Consortium.
Lub koom haum UNIFI tam sim no tau ua tiav "nws lub xyoo kawg," hais tias NLR tshaj tawm, thiab npaj yuav xa "ib lub tsev qiv ntawv loj loj ntawm zoo- cov qauv kuaj, qauv, thiab kev tswj hwm" rau kab sib chaws- tsim cov inverters.
Nrog nws cov lus hais tias daim phiaj- tsim cov peev txheej txhim kho daim phiaj xwm kev ruaj ntseg, NLR koom nrog Pawg Hluav Taws Xob Kev Sib Koom Tes hauv kev pom zoo daim phiaj - tsim cov inverters.
