Cov cuab yeej hluav taws xob hnub ci DC: ua kom muaj kev nyab xeeb thiab ua haujlwm tau zoo
Cov cuab yeej hluav taws xob DC ua lub luag haujlwm tseem ceeb hauv kev nyab xeeb thiab kev ua haujlwm ntawm cov tshuab hluav taws xob hnub ci. Raws li qhov kev thov rau cov khoom siv hluav taws xob rov ua dua tshiab txuas ntxiv mus, qhov tseem ceeb ntawm cov khoom siv tiv thaiv hluav taws xob txhim khu kev qha thiab ua tau zoo tsis tuaj yeem hais dhau. Hauv lub ntiaj teb hnub ci, cov cuab yeej hluav taws xob DC yog cov khoom tseem ceeb uas pab ua kom cov tshuab photovoltaic (PV) ua haujlwm tau zoo thaum tiv thaiv kev phom sij hluav taws xob.
Cov tshuab fais fab hnub ci siv cov vaj huam sib luag hnub ci los hloov lub hnub ci mus ua hluav taws xob. Cov vaj huam sib luag tsim hluav taws xob ncaj qha (DC), uas raug pub rau hauv lub inverter thiab hloov mus ua hluav taws xob hloov pauv (AC) rau cov tsev, cov lag luam thiab lub network siv. Thoob plaws hauv cov txheej txheem no, DC circuit breakers ua haujlwm ua lub tshuab kev nyab xeeb tseem ceeb, tiv thaiv lub kaw lus los ntawm overcurrent, luv circuits, thiab lwm yam hluav taws xob tsis ua haujlwm uas tuaj yeem ua rau puas tsuaj lossis ua rau muaj kev pheej hmoo rau cov neeg ua haujlwm.
Ib qho ntawm cov haujlwm tseem ceeb ntawm DC circuit breakers hauv kev siv lub hnub ci yog los cuam tshuam kev ntws ntawm hluav taws xob thaum muaj qhov txhaum lossis kev ua haujlwm tsis zoo. Los ntawm kev ua li ntawd, lawv pab tiv thaiv kev puas tsuaj rau cov vaj huam sib luag hnub ci, cov xov hlau, thiab lwm yam khoom ntawm lub cev thiab txo qhov kev pheej hmoo ntawm hluav taws lossis hluav taws xob poob siab. Tsis tas li ntawd, DC breakers ua rau cov neeg ua haujlwm saib xyuas tuaj yeem cais cov feem tshwj xeeb ntawm lub hnub ci rau kev saib xyuas lossis kho yam tsis tas kaw tag nrho lub cev.
Thaum xaiv lub DC circuit breaker rau lub hnub ci, yuav tsum xav txog ob peb yam tseem ceeb. Cov no suav nrog qhov voltage thiab tam sim no ntawm cov vaj huam sib luag hnub ci thiab inverter, hom PV array configuration (xws li series lossis parallel), thiab cov kev cai tshwj xeeb ntawm daim ntawv thov. Nws yog ib qho tseem ceeb heev uas yuav tsum xaiv lub circuit breaker uas sib xws nrog cov yam ntxwv tshwj xeeb ntawm lub hnub ci fais fab system thiab tuaj yeem muab kev tiv thaiv txhim khu kev qha nyob rau hauv ntau yam xwm txheej ib puag ncig.
Nyob rau xyoo tas los no, kev nce qib hauv thev naus laus zis DC circuit breaker tau ua rau muaj kev tsim cov khoom siv tshwj xeeb thiab ua haujlwm tau zoo dua uas tsim tshwj xeeb rau kev siv lub hnub ci. Piv txwv li, qee lub circuit breakers tau tsim los kom haum rau cov qib hluav taws xob siab thiab tam sim no feem ntau cuam tshuam nrog cov hnub ci arrays, thaum lwm tus muaj cov yam ntxwv tiv thaiv zoo dua xws li kev kuaj pom qhov txhaum arc thiab kev kaw sai. Cov kev tsim kho tshiab no tsis yog tsuas yog txhim kho kev nyab xeeb thiab kev ntseeg siab ntawm cov tshuab hluav taws xob hnub ci, tab sis kuj pab txhim kho kev ua haujlwm tag nrho thiab lub neej kev pabcuam ntawm cov khoom siv.
Tsis tas li ntawd xwb, kev koom ua ke ntawm kev txawj ntse thiab kev sib txuas lus hauv cov cuab yeej hluav taws xob DC niaj hnub no tuaj yeem txhim kho kev saib xyuas thiab kev tswj hwm ntawm cov chaw teeb tsa hnub ci. Los ntawm kev siv cov txheej txheem sib txuas lus digital thiab kev tswj hwm chaw taws teeb, cov neeg teb xov tooj tuaj yeem pom kev pom tseeb hauv lub sijhawm tiag tiag rau hauv qhov xwm txheej ntawm lub cuab yeej hluav taws xob, txheeb xyuas cov teeb meem uas yuav tshwm sim, thiab ua cov kauj ruam ua ntej los ua kom zoo dua qhov kev ua haujlwm ntawm lub kaw lus. Qib kev pom thiab kev tswj hwm no yog qhov tseem ceeb rau kev ua haujlwm zoo ntawm cov chaw tsim hluav taws xob hnub ci thiab txo qis lub sijhawm tsis ua haujlwm vim muaj hluav taws xob tsis ua haujlwm.
Raws li kev hloov pauv thoob ntiaj teb mus rau lub zog ruaj khov txuas ntxiv mus, qhov kev thov rau cov khoom siv hluav taws xob DC zoo rau kev siv hnub ci yuav nce ntxiv. Cov chaw tsim khoom thiab cov neeg muag khoom pheej siv zog ua kom tau raws li qhov kev thov no los ntawm kev muab ntau yam khoom uas ua tau raws li qhov kev nyab xeeb thiab kev ua tau zoo ntawm kev lag luam hnub ci. Txawm hais tias nws yog kev teeb tsa hnub ci hauv tsev, kev lag luam lossis kev siv hluav taws xob, lub luag haujlwm ntawm DC circuit breakers hauv kev tiv thaiv kev ncaj ncees ntawm cov khoom siv hluav taws xob tsis tuaj yeem tsis quav ntsej.
Hauv ntej, DC circuit breakers yog ib qho tseem ceeb hauv cov tshuab hluav taws xob hnub ci, muab kev tiv thaiv tsim nyog los ntawm kev ua txhaum hluav taws xob thiab ua kom muaj kev nyab xeeb thiab txhim khu kev qha ntawm cov khoom siv photovoltaic. Thaum thev naus laus zis txuas ntxiv mus thiab kev tsom mus rau lub zog rov ua dua tshiab loj hlob, kev tsim cov kev daws teeb meem tiv thaiv hluav taws xob tshwj xeeb uas tsim rau cov ntawv thov hnub ci yuav txuas ntxiv ua lub luag haujlwm tseem ceeb hauv kev tsim lub neej yav tom ntej ntawm kev tsim hluav taws xob ruaj khov. Los ntawm kev xaiv qhov tseem ceeb thiab kev siv cov DC circuit breakers zoo, cov neeg koom nrog kev lag luam hnub ci tuaj yeem tswj hwm cov qauv kev nyab xeeb thiab kev ua haujlwm zoo tshaj plaws thaum pab txhawb rau kev txhim kho ntawm cov kev pib siv hluav taws xob huv.
Lub sijhawm tshaj tawm: Lub Xya Hli-10-2024