Ua rau thiab kev daws teeb meem ntawm daim phiaj-txuas txee tripping ntawm photovoltaic fais fab chaw nres tsheb

Raws li kev thov thoob ntiaj teb rau kev siv hluav taws xob txuas ntxiv mus ntxiv, kev tsim hluav taws xob photovoltaic yog qhov tseem ceeb ntawm lub zog huv, nws daim ntawv thov yog ntau thiab ntau dua. Cov txheej txheem sib txuas ntawm daim phiaj hluav taws xob photovoltaic thiab daim phiaj hluav taws xob yog tus yuam sij kom paub txog kev siv hluav taws xob photovoltaic tsim hluav taws xob, uas lub luag haujlwm ntawm "photovoltaic grid-connected txee" yog qhov tseem ceeb. Txawm li cas los xij, nyob rau hauv tus txheej txheem ntawm daim phiaj-txuas kev lag luam ntawm photovoltaic fais fab chaw nres tsheb, qhov teeb meem ntawm photovoltaic daim phiaj-txuas txee tripping feem ntau tshwm sim.

Ua ntej, cov khoom tseem ceeb ntawm photovoltaic daim phiaj-txuas txee muaj xws li:
Inverter: Hloov tam sim no ncaj qha mus rau hauv alternating tam sim no uas ua tau raws li qhov yuav tsum tau muaj zaus thiab voltage ntawm daim phiaj.
Cov cuab yeej tiv thaiv: suav nrog overcurrent, overvoltage, zaus tiv thaiv, kev tiv thaiv hauv av, thiab lwm yam, tuaj yeem txiav qhov kev sib txuas nrog lub zog hluav taws xob thaum daim phiaj hluav taws xob tsis zoo, tiv thaiv kev puas tsuaj rau cov khoom siv photovoltaic.
Saib xyuas qhov system: real-time saib xyuas ntawm daim phiaj hluav taws xob voltage, tam sim no, zaus thiab lwm yam tsis zoo los xyuas kom meej qhov kev ua haujlwm ntawm lub cev.

Qhov thib ob, feem ntau ua rau photovoltaic daim phiaj-txuas txee tripping
Pv grid-connected txee tripping feem ntau yog tshwm sim los ntawm ntau yam hluav taws xob tsis raug cai lossis kev ua haujlwm tsis zoo. Cov laj thawj tshwj xeeb suav nrog cov hauv qab no:

Kev tiv thaiv tshaj dhau: Thaum luv luv Circuit Court, overload los yog lwm yam hluav taws xob faults tshwm sim nyob rau hauv daim phiaj hluav taws xob, qhov tam sim no yuav zoo heev tshaj qhov kev ua hauj lwm ntau yam, uas ua rau ua rau lub overcurrent tiv thaiv ntaus ntawv ntawm lub photovoltaic daim phiaj-txuas txee. Qhov no yog los tiv thaiv cov dej ntws siab los ntawm kev puas tsuaj rau cov khoom siv, tshwj xeeb tshaj yog cov khoom siv tseem ceeb xws li inverters. Thaum qhov teeb meem overcurrent tshwm sim, daim phiaj-txuas txee feem ntau tam sim ntawd disconnects photovoltaic fais fab chaw nres tsheb ntawm daim phiaj.

Overvoltage los yog undervoltage: Voltage fluctuations nyob rau hauv daim phiaj yog lwm yam ua rau tripping. Lub built-in overvoltage thiab undervoltage tiv thaiv ntaus ntawv ntawm PV kab sib txuas-txuas txee tuaj yeem saib xyuas qhov hloov hluav taws xob ntawm daim phiaj hauv lub sijhawm. Thaum qhov hluav taws xob ntau tshaj qhov chaw pib, PV daim phiaj sib txuas nrog lub txee yuav ua rau muaj kev tiv thaiv kev mus los los tiv thaiv cov khoom puas los ntawm qhov hluav taws xob siab, lossis tsis tuaj yeem muab hluav taws xob ruaj khov thaum qhov hluav taws xob tsawg dhau.

Ntau zaus: Tsis zoo li zaus ntawm daim phiaj hluav taws xob (xws li zaus dhau qhov kev tso cai ntawm 50Hz lossis 60Hz) yuav ua rau muaj kev puas tsuaj ntawm daim phiaj hluav taws xob thiab lub chaw nres tsheb photovoltaic, thiab tom qab ntawd ua rau lub inverter tsis tuaj yeem ua haujlwm li qub. Thaum lub zog hluav taws xob sib txawv ntawm qhov ib txwm muaj, cov khoom siv tiv thaiv zaus ntawm photovoltaic daim phiaj-txuas txee yuav pib thiab txiav tawm ntawm daim phiaj hluav taws xob kom tsis txhob cuam tshuam cov khoom siv photovoltaic.

Inverter tsis ua hauj lwm: Lub inverter yog ib qho tseem ceeb ntawm lub chaw nres tsheb fais fab photovoltaic, thiab nws qhov tsis ua haujlwm (xws li overtemperature, overload, hardware tsis ua hauj lwm, thiab lwm yam) yog ib qho ntawm cov laj thawj tseem ceeb rau cov phiaj xwm txuas nrog lub txee. Yog tias lub inverter tsis hloov DC rau AC, qhov tam sim no tsis ua raws li qhov yuav tsum tau muaj ntawm daim phiaj hluav taws xob, ua rau muaj kev tiv thaiv kev tiv thaiv ntawm daim phiaj sib txuas.

Grounding tsis ua hauj lwm: Yog hais tias lub hauv paus system ntawm qhov chaw nres tsheb photovoltaic tsis ua haujlwm, nws yuav ua rau cov dej xau tam sim no. Daim phiaj-txuas txee feem ntau yog nruab nrog kev tiv thaiv hauv av, thiab thaum pom tias muaj qhov cuam tshuam los yog hauv av txhaum, nws yuav txiav tawm qhov kev sib txuas ntawm qhov chaw nres tsheb photovoltaic thiab daim phiaj kom ruaj ntseg hluav taws xob.

Cov teeb meem tsis zoo ntawm daim phiaj: Kev hloov pauv hauv daim phiaj zoo, xws li kev sib haum xeeb, kev hloov pauv hluav taws xob lossis kev hloov pauv ntau zaus, kuj tseem tuaj yeem ua rau PV daim phiaj-txuas txee rau kev mus ncig. Txawm hais tias cov tuam txhab kab sib chaws feem ntau ua kom cov kab sib chaws ruaj khov, hauv qee thaj tsam, thaum daim phiaj sib txawv heev, cov nroj tsuag photovoltaic yuav raug cuam tshuam.

Thib peb, daws qhov teeb meem photovoltaic daim phiaj txuas nrog txee tripping
Yuav kom txo tau qhov tshwm sim ntawm photovoltaic daim phiaj-txuas txuas txee tripping thiab xyuas kom ruaj khov daim phiaj-txuas photovoltaic fais fab chaw nres tsheb thiab daim phiaj fais fab, nws raug nquahu kom siv cov kev ntsuas hauv qab no:

Kev kuaj thiab kev saib xyuas tsis tu ncua: Kev saib xyuas tsis tu ncua thiab kev tshuaj xyuas cov khoom siv hluav taws xob txuas nrog photovoltaic, suav nrog kev ntsuas kev sib txuas ntawm inverters, cov cuab yeej tiv thaiv tam sim no, hauv av, thiab lwm yam. Ua li no, cov teeb meem muaj peev xwm tuaj yeem tshawb pom raws sijhawm thiab kev pheej hmoo ntawm cov cuab yeej tsis ua haujlwm tuaj yeem raug txo.

Optimization ntawm daim phiaj-txuas chaw: Nyob rau hauv cov txheej txheem kev sib txuas ntawm kab hluav taws xob photovoltaic, qhov kev teeb tsa ntawm lub inverter yog qhov tseem ceeb. Xyuas kom meej tias cov zis voltage thiab zaus ntawm lub inverter yog synchronized nrog lub hwj chim daim phiaj, thiab raws sij hawm kho lub zog tsim tsis tau ntawm lub photovoltaic fais fab chaw nres tsheb raws li qhov hloov pauv ntawm daim phiaj hluav taws xob kom tsis txhob tripping los ntawm voltage los yog zaus instability.

Kev siv cov cuab yeej zoo: Kev siv cov khoom siv hluav taws xob zoo photovoltaic inverters, kab sib txuas nrog cov khoom siv hluav taws xob thiab lwm yam khoom siv hluav taws xob pab txhim kho kev ruaj ntseg thiab kev ntseeg siab ntawm lub cev. Xaiv cov khoom siv nrog kev ua txhaum siab thiab xav txog kev hloov pauv hauv daim phiaj zoo hauv kev tsim qauv tuaj yeem txo qhov kev pheej hmoo ntawm tripping.

Ntxiv dag zog rau kev xaiv ntawm daim phiaj siv cov ntsiab lus: Kev xaiv cov ntsiab lus nkag rau photovoltaic fais fab chaw nres tsheb yuav tsum xav txog lub nra ntawm daim phiaj, kev ruaj ntseg thiab kev xa tawm muaj peev xwm ntawm daim phiaj. Tshwj xeeb tshaj yog nyob rau hauv cov cheeb tsam uas daim phiaj hluav taws xob tsis ruaj khov, kev sib koom tes nrog lub tuam txhab hluav taws xob ua haujlwm yuav tsum tau ua kom muaj zog kom ntseeg tau tias cov khoom siv hluav taws xob ntawm cov ntsiab lus sib txuas ua tau raws li qhov yuav tsum tau ua.

Txhim khu kev cob qhia cov neeg ua haujlwm technical: kev cob qhia kev ua haujlwm thiab kev saib xyuas cov neeg ua haujlwm ntawm photovoltaic fais fab chaw nres tsheb kom paub tseeb tias lawv paub cov txheej txheem kev ua haujlwm thiab kev kho thaum muaj xwm txheej ceev ntawm photovoltaic fais fab chaw nres tsheb, uas tuaj yeem ua tau zoo kom tsis txhob poob ntawm cov kab sib txuas nrog cov khoom siv vim kev ua haujlwm tsis raug.