Nrog txoj kev loj hlob sai ntawm lub ntiaj teb photovoltaic kev lag luam, ntau thiab ntau thaj chaw, kev lag luam, kev lag luam thiab kev siv hluav taws xob ntsuas hluav taws xob tau txais kev tsim hluav taws xob hnub ci. Txawm li cas los xij, cov tshuab PV feem ntau yog ntsia rau hauv ib puag ncig uas muaj kev cuam tshuam rau xob laim thiab surges, xws li lub ru tsev lossis qhov chaw qhib. Yog tias tsis muaj kev tiv thaiv kev tiv thaiv kev tiv thaiv, ib qho kev tshwm sim ib ntus overvoltage tuaj yeem ua rau cov inverters puas, cuam tshuam kev tsim hluav taws xob thiab ua rau cov nqi kho tseem ceeb.
Yog li vim li cas PV systems xav tau kev tiv thaiv surge? Rau qhov laj thawj hauv qab no qhia txog lub luag haujlwm tseem ceeb ntawm SPDs hauv PV systems.
1.Kev tiv thaiv kev puas tsuaj rau cov khoom siv los ntawm xob laim thiab nthwv dej siab
PV systems feem ntau raug rau sab nraum zoov. Txawm hais tias tsis muaj hluav taws xob ncaj qha, cov hluav taws xob overvoltages tuaj yeem tshwm sim los ntawm cov hluav taws xob nyob ze (induced surges), kev ua haujlwm ntawm daim phiaj, lossis pib thiab kaw cov khoom loj.
Cov surges no tuaj yeem nkag mus rau hauv lub kaw lus los ntawm DC kab, AC kab thiab txawm tias kev sib txuas lus cables, ua rau cov khoom puas xws li inverters, cov thawv sib txuas thiab cov tswj. SPD tuaj yeem hloov overvoltage mus rau hauv av hauv nanoseconds, txo qhov kev pheej hmoo ntawm cov khoom puas.
2.Kev tiv thaiv cov khoom siv tseem ceeb (zoo li Inverters) thiab txo cov nqi kho
Lub inverter yog lub hauv paus tseem ceeb ntawm photovoltaic system thiab yog ib qho tseem ceeb tshaj plaws ntawm cov khoom muaj nqis ntawm photovoltaic tiam. Yog hais tias lub inverter raug puas tsuaj los ntawm qhov surge, cov tswv yuav ntsib tsis tau tsuas yog kim kho los yog hloov, tab sis kuj downtime rau tag nrho cov hwj chim system.
Ntxiv rau cov inverter, cov khoom siv hauv qab no kuj xav tau kev tiv thaiv surge:
PV module
Combiner thawv
Roj teeb lub zog cia system
kev faib khoom txee
Cov cuab yeej saib xyuas cov ntaub ntawv
Kev sib txuas lus module
Kev teeb tsa lub zog-txuag thiab lub zog- txuag cov cuab yeej tau ua haujlwm tau zoo rau lub neej kev pabcuam ntawm cov cuab yeej tseem ceeb thiab txo qhov ntev - cov nqi tu.
3. Txhim kho kev ua haujlwm ruaj khov ntawm photovoltaic system.
Rau kev lag luam / kev lag luam PV cov haujlwm thiab cov chaw tsim hluav taws xob loj, kev tsim hluav taws xob ruaj khov thiab ruaj khov txhais tau tias muaj kev rov qab los ntawm kev nqis peev ntau dua.
Kev kaw lub kaw lus tsis tu ncua tau ua rau muaj kev cuam tshuam tsis zoo uas tsis yog tsuas yog ua rau lub zog tsim hluav taws xob ua haujlwm tau zoo, tab sis tseem ua rau cov nqi zog thiab kev saib xyuas.
Kev teeb tsa ntawm SPD ntawm DC sab, AC sab thiab kev sib txuas lus ntawm PV system tuaj yeem txo qhov tsis ua haujlwm ntawm cov khoom siv, ua kom lub sijhawm ntev - lub sijhawm ua haujlwm ruaj khov ntawm PV system thiab txhim kho tag nrho lub zog tsim hluav taws xob. Ua raws li cov qauv thoob ntiaj teb thiab Engineering Specifications
Nrog rau kev nce qib ntawm kev nyab xeeb thoob ntiaj teb rau cov haujlwm tshiab ntawm lub zog, ntau thiab ntau cov haujlwm engineering xav tau kev teeb tsa ntawm cov khoom siv tiv thaiv surge.
Cov qauv uas muaj xws li:
IEC 61643 series qauv
IEC 60364 Kev ntsuas hluav taws xob tsawg
Specification rau kev tsim cov tshuab photovoltaic
Lub tsev hauv zos thiab cov qauv kev nyab xeeb hluav taws xob
Rau cov phiaj xwm xa tawm, kev siv SPDs uas ua tau raws li cov qauv thoob ntiaj teb tsis yog tsuas yog pab txhawb rau qhov kev lees paub, tab sis kuj txhim kho cov neeg siv khoom ntseeg siab hauv cov khoom zoo.
V. Txo qhov ntev -Cov nqi khiav lag luam thiab txhim kho ROI
surge protectors raug saib los ntawm qee cov neeg siv raws li cov khoom siv thib ob; Txawm li cas los xij, lawv ua lub luag haujlwm tseem ceeb hauv kev tiv thaiv kev puas tsuaj loj nyiaj txiag.
SPD muaj cov nqi qis tshaj plaws piv rau cov nqi cuam tshuam nrog kev hloov pauv inverters, kho cov kev tswj xyuas, kev poob qis thiab kev tswj xyuas phau ntawv.
Txhim kho qhov zoo tshaj plaws tiv thaiv kev tiv thaiv los ntawm qhov pib tuaj yeem txhim kho tag nrho ROI ntawm PV systems los ntawm kev txo cov khoom siv tsis ua haujlwm, txo kev tu ntau zaus, thiab txo qis qis.
6. Kev lees paub zoo rau cov haujlwm photovoltaic ntawm txhua qhov ntau thiab tsawg.
Kev tiv thaiv surge yog ib qho tseem ceeb ntawm txhua lub tswv yim kev txuag hluav taws xob, txawm tias nws yog cov tsev nyob hauv PV systems lossis chaw nres tsheb loj hauv av.
SPD feem ntau pom zoo nyob rau hauv cov chaw hauv qab no:
nruab nrab ntawm PV Cheebtsam thiab assemblers
Nruab nrab ntawm lub thawv sib txuas thiab lub inverter's DC input
AC tso zis nyob rau hauv inverter
Nyob rau hauv lub ntsiab faib txee
Hais txog kev sib txuas lus thiab saib xyuas kab
Raws li qhov system loj, qhov voltage voltage theem installation ib puag ncig, tsim nyog DC voltage regulator, AC SPDs voltage regulator thiab teeb liab voltage regulator yuav raug xaiv los tsim ib tug tiav multi{0}}theem surge tiv thaiv system.
Xaus:
PV system yog ib lub sij hawm ntev - kev nqis peev nrog lub neej tsim ntau tshaj 25 xyoo. Thoob plaws hauv cov txheej txheem, cov cuab yeej tuaj yeem cuam tshuam los ntawm xob laim tawm tsam, hloov pauv hauv daim phiaj hluav taws xob thiab ntau yam kev hloov pauv hloov pauv. Surge protectors, txawm tias me me, yog lub luag haujlwm los ua kom muaj kev nyab xeeb thiab txhim khu kev qha ntawm lub kaw lus.
Rau cov tub ua lag luam PV, EPC cov neeg cog lus, cov neeg tsim khoom thiab cov khoom siv, xaiv cov khoom siv hluav taws xob ua haujlwm siab uas ua tau raws li cov qauv thoob ntiaj teb tuaj yeem txhim kho kev nyab xeeb, txo cov nqi tu thiab ua kom muaj zog ruaj khov rau lub sijhawm ntev.
FAQs
Installation mas pom zoo. Cov qauv tsim tshwj xeeb tuaj yeem txo qhov kev pheej hmoo ntawm cov cuab yeej raug puas tsuaj los ntawm kev nce siab, tshwj xeeb tshaj yog nyob rau hauv cov xwm txheej uas nquag siv hluav taws xob, ntev -kab cab sab nraum zoov lossis kev lag luam thiab kev lag luam; lawv yog li ntawd tus qauv yuav tsum tau rau ntau yam engineering tej yaam num.
Q2: Puas yog PV system yuav tsum tau nruab nrog AC SPD lossis DC automatons?
Ob leeg raug pom zoo. DC SPDs feem ntau tiv thaiv cov cabling ntawm PV sib dhos thiab lub inverter, AC SPDs tsuas yog tiv thaiv cov zis kawg ntawm lub inverter thiab kev faib tawm. Cov kev tiv thaiv kev tiv thaiv feem ntau xav tau SPD ntawm ob sab DC thiab AC.
Daim ntawv pov thawj
