Nyob rau hauv lub photovoltaic system, cov hluav taws xob generated ntws los ntawm photovoltaic modules mus rau lub inverter, uas converts ncaj qha tam sim no mus rau alternating tam sim no.Lub hwj chim AC no yog siv rau lub hwj chim loads xws li cov khoom siv los yog teeb pom kev zoo los yog pub rov qab rau hauv daim phiaj.Txawm li cas los xij, qee zaum, qhov ntws ntawm hluav taws xob tuaj yeem thim rov qab, tshwj xeeb tshaj yog thaum lub tshuab photovoltaic tsim hluav taws xob ntau dua li qhov xav tau.Hauv qhov no, yog tias PV module tseem tsim hluav taws xob thiab cov khoom siv hluav taws xob tsawg lossis tsis muaj zog, tej zaum yuav muaj qhov thim rov qab los ntawm kev thauj khoom rov qab mus rau kab sib chaws, ua rau muaj kev nyab xeeb thiab cov khoom puas tsuaj.
Txhawm rau tiv thaiv qhov kev thim rov qab tam sim no, cov tshuab hluav taws xob photovoltaic tau nruab nrog cov khoom siv hluav taws xob rov qab los yog cov yam ntxwv.Cov cuab yeej no xyuas kom meej tias tam sim no ntws tsuas yog nyob rau hauv cov kev xav tau, los ntawm photovoltaic module mus rau lub load lossis kab sib chaws.Lawv tiv thaiv txhua qhov rov qab tam sim no thiab tiv thaiv cov tshuab thiab khoom siv los ntawm kev puas tsuaj.Los ntawm kev sib koom ua ke los tiv thaiv kev rov qab ua haujlwm tam sim no, PV cov neeg ua haujlwm tuaj yeem ua kom muaj kev nyab xeeb thiab ua haujlwm tau zoo, tshem tawm cov kev pheej hmoo tam sim no, thiab ua raws li cov qauv kev nyab xeeb thiab cov kev cai.
Lub hauv paus ntsiab lus tseem ceeb ntawm kev tiv thaiv inverter backflow yog txhawm rau txheeb xyuas qhov voltage thiab zaus ntawm daim phiaj hluav taws xob hauv lub sijhawm tiag tiag kom paub txog kev tswj hwm thiab kev tswj hwm ntawm inverter.Cov hauv qab no yog ob peb txoj hauv kev kom paub qhov inverter tiv thaiv rov qab:
DC nrhiav pom: Lub inverter ncaj qha pom cov kev taw qhia thiab qhov loj ntawm qhov tam sim no los ntawm lub ntsuas tam sim no lossis lub ntsuas tam sim no, thiab hloov kho lub zog tso zis ntawm lub inverter raws li cov ntaub ntawv tshawb pom.Yog tias pom qhov teeb meem rov qab tam sim no, lub inverter yuav tam sim ntawd txo lossis tso tseg lub zog rau hauv daim phiaj.
Anti-reverse tam sim no ntaus ntawv: Ib tug anti-reverse tam sim no ntaus ntawv yog feem ntau yog ib tug hluav taws xob ntaus ntawv uas pom ib tug rov qab tam sim no mob thiab yuav siv sij hawm kev tswj kom tsim nyog.Feem ntau, cov cuab yeej tiv thaiv rov qab saib xyuas qhov voltage thiab zaus ntawm daim phiaj thiab, thaum nws pom qhov rov qab, tam sim ntawd kho cov zis hluav taws xob ntawm lub inverter lossis nres lub xa hluav taws xob.Cov cuab yeej tiv thaiv rov qab tuaj yeem siv los ua ib qho ntxiv module lossis cov khoom siv ntawm lub inverter, uas tuaj yeem xaiv thiab ntsia tau raws li qhov yuav tsum tau ua ntawm inverter.
Cov khoom siv hluav taws xob cia: Lub zog cia cov cuab yeej tuaj yeem pab daws qhov teeb meem ntawm inverter backflow.Thaum lub zog tsim los ntawm lub inverter tshaj qhov xav tau ntawm daim phiaj, lub zog ntau dhau tuaj yeem khaws cia rau hauv lub zog cia khoom.Cov khoom siv hluav taws xob khaws cia tuaj yeem yog cov roj teeb pob, supercapacitors, hydrogen cia cov khoom siv, thiab lwm yam. Thaum daim phiaj xav tau lub zog ntxiv, lub zog cia khoom tuaj yeem tso tawm lub zog khaws cia thiab txo qhov kev cia siab ntawm daim phiaj, yog li tiv thaiv kev rov qab.
Ntsuas qhov hluav taws xob thiab zaus: Lub inverter tsis tsuas yog kuaj xyuas tam sim no los txiav txim seb puas muaj qhov rov qab tam sim no, tab sis kuj tseem saib xyuas cov kab hluav taws xob thiab zaus kom paub qhov cuam tshuam rov qab tam sim no.Thaum lub inverter saib xyuas tias daim phiaj hluav taws xob lossis zaus tawm ntawm qhov teeb tsa, nws yuav txo lossis tso tseg lub zog xa mus rau daim phiaj txhawm rau tiv thaiv kev thim rov qab.
Nws yuav tsum raug sau tseg tias txoj hauv kev tseeb ntawm kev paub txog kev tiv thaiv inverter backflow yuav txawv nyob ntawm seb hom thiab qauv ntawm inverter.Yog li ntawd, nws raug pom zoo tias thaum siv lub inverter, nyeem cov khoom siv thiab kev ua haujlwm phau ntawv ua tib zoo kom nkag siab txog cov kev paub tshwj xeeb thiab kev ua haujlwm ntawm nws txoj haujlwm tiv thaiv rov qab tam sim no.
Post lub sij hawm: Lub Xya hli ntuj-21-2023