Qhov voltage ntawm DC sab ntawm lub hnub ci zog yog nce rau 1500v, thiab kev txhawb nqa ntawm cov khoom muaj zog rau kev nyab xeeb rau lub zog hluav taws xob ntawm tag nrho cov photovoltaic. Tom qab lub kaw lus hluav taws xob yog nce, nws yog cov kev sib tw thiab kev pheej hmoo ntawm cov kab ke, thiab ua kom muaj kev tiv thaiv kom muaj kev tiv thaiv kom muaj kev tiv thaiv kom raws sijhawm thiab ua haujlwm tau zoo thaum coj ua txhaum tshwm sim.
Txhawm rau kom tau sib xyaw nrog cov khoom siv nrog cov khoom siv tam sim no, cov qauv inverter tam sim no, lub inverter tsim kho kom tau txais cov hlua sab hauv ntawm MPT mus rau peb lossis ntau dua.Thaum cov ntaub ntawv ntawm txoj cai, txoj hlua yuav muaj teeb meem ntawm kev rov qab tam sim no. Txhawm rau daws cov teeb meem no, DC hloov nrog txoj haujlwm ntawm "ntse DC kaw" tau tawm raws li lub sijhawm xav tau.
01 Qhov sib txawv ntawm kev hloov pauv cais thiab ntse DC hloov
Ua ntej tshaj plaws, cov tsoos DC cais kev hloov tuaj yeem ua txhaum nyob rau hauv cov rated tam sim no, tom qab ntawd nws tuaj yeem tsoo lub peev xwm hauv qab ntawm qhov muaj peev xwm tawg ntawm kev hloov pauv , feem ntau nws tsis tuaj yeem rhuav tshem cov luv-circuitacuit tam sim no.
Qhov sib txawv loj tshaj plaws ntawm kev cais tawm thiab cov kev ua txhaum hluav taws xob yog tias cov kev ua txhaum luv luv tam sim no muaj qhov ua txhaum ntau dua li qhov kev kub ntxhov tam sim no ntawm Circuit Court breaker ; Txij li thaum luv luv-Circuit Coator tam sim no ntawm photovoltaic dc sab yog feem ntau yog li 1.2 npaug ntawm cov tshuab raj tam sim no, cov hloov pauv sib cais lossis cov khoom siv cais tuaj yeem tsoo cov luv luv ntawm DC ib sab.
Tam sim no, tus ntse DC hloov siv los ntawm inverter, ntxiv rau kom muaj peev xwm sib koom tes nrog lub peev xwm dhau los, kuj tuaj yeem ua txhaum cov kev txhaum loj tshaj plaws hauv Circuit Court tam sim no, zoo nws daws cov teeb meem ntawm txoj hlua tam sim no backfeeding. Nyob rau tib lub sijhawm, lub DC hloov ua ke nrog DSP ntawm Inverter, yog li lub tsev mus txawv tebchaws tuaj yeem raug xws li overcuit txwv kev tiv thaiv thiab kev tiv thaiv kab ke luv luv.
Hluav taws xob schematic daim duab ntawm Smart DC Hloov
02 Lub Solar system tsim kev tsim nyog yuav tsum tau teeb tsa txoj hlua khi hauv txhua qhov chaw thov cov hlua txoj hlua khi yog qhov tsis muaj-fuse tsim los txo Kev ua haujlwm thiab kev txij nkawm ua haujlwm ntawm kev hloov ntau zaus ntawm FIMES rau DC ib. Inverters siv ntse DC hloov chaw es tsis txhob fuses. MPT tuaj yeem tawm tswv yim 3 pawg ntawm cov hlua. Nyob rau hauv cov kev txhaum huab, yuav muaj kev pheej hmoo tias 2 pawg ntawm cov hlua yuav ntws rov qab mus rau 1 pawg ntawm cov hlua. Nyob rau lub sijhawm no, qhov ntse DC hloov yuav pop qhib lub dc hloov mus los ntawm shunt tso tawm thiab disconnect nws nyob rau lub sijhawm. Circuital Circuit Court kom muaj kev tshem tawm sai sai.
Schematic daim duab ntawm MPP txoj hlua tam sim no thaub qab
Lub suab nrov yog qhov tseem ceeb ib qho tripping chipp ntxiv rau lub tshuab hluav taws xob, thiab los ntawm DC hloov Actuator yog tripping mus qhib tus brake, thiab lub shunt tripping nws Feem ntau yog siv nyob rau hauv cov chaw taws teeb tsis siv neeg tswj hwm.Thaum tus DC hloov pauv tau tripped thiab qhib los ntawm inverter DSP kom rhuav tshem lub dc hloov circuit Court.
Rau invereers siv lub trunt kev tiv thaiv kev tiv thaiv muaj nuj nqi, nws yog thawj zaug tsim nyog kom paub meej tias kev tswj hwm lub zog ntawm lub circuit Court muaj zog ntawm lub circuit Court tau tuaj yeem lav.
03 Daim Ntawv Thov Prosphe ntawm Ntse DC Hloov
Raws li kev nyab xeeb ntawm lub photovoltaic DC sab yog me ntsis tau txais ntau dua, kev nyab xeeb ua haujlwm xws li AFCI thiab ntau dua tam sim no.smart DC hloov yog qhov tseem ceeb. Thaum ib qho txhaum tshwm sim, DINT DC hloov tuaj yeem siv cov chaw taws teeb tswj hwm thiab tag nrho tswj kev txhawb nqa ntawm tus ntse hloov. Tom qab AFCI lossis RSD nkaus, DSP yuav xa lub cim dawm kom cia li mus ncig DC DC rho tawm hloov. Tsim ib qho kev so kom meej kom ntseeg tau tias kev nyab xeeb ntawm cov neeg ua haujlwm tu. Thaum DC hloov tawg qhov loj tam sim no, nws yuav cuam tshuam rau hluav taws xob lub neej ntawm tus tes hloov. Thaum siv qhov ntse DC hloov, qhov tawg tsuas yog siv lub neej kho tshuab ntawm DC hloov pauv thiab Arc tua hluav taws xob muaj peev xwm ntawm DC hloov.
Daim ntawv thov ntawm cov ntse DC hloov kuj tseem ua rau muaj kev tswj hwm ntawm DSP kev tswj kev teeb tsa, thaum muaj xwm txheej ceev, ntawm cov cuab yeej hloov pauv, ntawm DC hloov ntawm Inverter tuaj yeem nrawm dua thiab Qhov raug kaw los ntawm DSP teeb liab, sib sau ua ib qho kev tswj hwm kev txhim khu kev qha.
04 Ntsiab Lus
Daim ntawv thov ntawm cov ntse DC hloov pauv tsuas yog daws cov kev tiv thaiv kev tiv thaiv tam sim no thiab kev saib xyuas cov chaw taws teeb thiab txhim kho cov neeg siv kev nyab xeeb hauv kev nyab xeeb. Muaj peev xwm cuam tshuam nrog kev ua txhaum tseem yuav tsum tau daim ntawv thov thiab pov thawj ntawm Smart DC hloov hauv kev lag luam.
Lub Sijhawm Post: Feb-16-2023