1 Core txhais ntawm hybrid inverter
Lub hybrid inverter yog ib qho khoom siv hluav taws xob ntse uas sib koom ua ke DC -AC hloov dua siab tshiab, kev tswj xyuas lub zog, thiab kev sib cuam tshuam ntawm kab sib chaws. Nws tuaj yeem txuas ib txhij txuas cov khoom siv hluav taws xob tauj dua tshiab (xws li photovoltaics), lub zog cia roj teeb, thiab cov phiaj xwm pej xeem, ua tiav cov sij hawm hloov pauv thiab siv tau zoo ntawm ntau yam - lub zog. Nws lub tswv yim tsim tseem ceeb rhuav tshem cov kev txwv ntawm cov tsoos inverters "kev hloov pauv ib zaug" thiab ua tiav cov saw hluav taws xob tag nrho ntawm "tsim cia khoom siv hluav taws xob sib txuas" los ntawm kev tswj hwm kev sib koom ua ke, ua lub hauv paus tseem ceeb ntawm kev faib hluav taws xob.
Piv nrog cov inverters zoo tib yam, qhov sib txawv tseem ceeb ntawm hybrid inverters nyob hauv lawv "ntau qhov xwm txheej hloov pauv" - lawv tuaj yeem tsis tsuas yog ua tiav cov kev hloov pauv ntawm DC mus rau AC, tab sis kuj tseem hloov pauv kev ua haujlwm raws li kev thov hluav taws xob, cov khoom siv hluav taws xob photovoltaic, thiab daim phiaj xwm txheej, hloov mus rau kev ua haujlwm nyuaj xws li kev sib txuas ntawm kab sib txuas, off-grid, thiab grid.
2 Plaub qhov sib txawv ntawm cov inverters zoo tib yam
1. Kev koom ua ke ua haujlwm: los ntawm "kev hloov pauv ib zaug" mus rau "tag nrho-kev tswj hwm ib puag ncig"
Ordinary inverters tsuas muaj unidirectional conversion muaj nuj nqi los ntawm DC mus rau AC, thiab cov zis hluav taws xob yog muab ncaj qha mus rau lub load los yog txuas nrog rau daim phiaj, tsis muaj zog cia kev sib cuam tshuam muaj peev xwm; Lub hybrid inverter integrates triple functions ntawm ib txwm inverters, charging controllers, thiab daim phiaj sib koom ua ke modules, thiab nws tus kheej ua tiav photovoltaic fais fab kev faib, roj teeb them thiab tshem tawm kev tswj, thiab daim phiaj fais fab sib pauv, sib npaug rau kev sib txuas ntawm "lub zog steward + fais fab converter". Piv txwv li, thaum muaj ntau tshaj photovoltaic tso zis, zoo tib yam inverters tuaj yeem xa cov hluav taws xob ntau dhau mus rau hauv daim phiaj, thaum hybrid inverters tuaj yeem ua qhov tseem ceeb khaws cia rau hauv cov roj teeb kom ua tiav kev siv hluav taws xob zoo.
2. Fais fab xa mus: los ntawm "passive tso zis" mus rau "active optimization"
Lub hwj chim ntws kev taw qhia ntawm cov inverters zoo tib yam yog tsau thiab tsuas yog passively mov tom qab lub photovoltaic fais fab tuag lub xeev; Hybrid inverters ua tiav lub sijhawm teem sijhawm los ntawm kev txawj ntse algorithms: thaum muaj hnub ci txaus, qhov tseem ceeb yog muab rau kev siv lub zog hluav taws xob photovoltaic los muab cov khoom thauj, qhov ntau tshaj yog them rau lub roj teeb, thiab cov hluav taws xob ntxiv tau muab tso rau hauv daim phiaj; Thaum tsaus ntuj lossis hnub huab cua, nws cia li hloov mus rau lub roj teeb tawm lossis daim phiaj sib ntxiv kom ntseeg tau lub zog txuas ntxiv. Lub sijhawm teem sijhawm muaj peev xwm txhim kho lub zog siv hluav taws xob los ntawm 20% -30%, tshwj xeeb tshaj yog tsim rau cov xwm txheej uas muaj qhov sib txawv loj hauv kev siv hluav taws xob nruab hnub thiab hmo ntuj.
3. Daim phiaj sib cuam tshuam: los ntawm "ib- txoj kev sib txuas ntawm kab sib chaws" mus rau "ob- txoj kev sib koom tes"
Kev sib cuam tshuam ntawm cov inverters zoo tib yam thiab daim phiaj hluav taws xob feem ntau yog unidirectional - tsuas yog lub zog photovoltaic ntau dhau raug xa mus rau daim phiaj, thiab kev siv hluav taws xob tsis tuaj yeem tau txais los ntawm daim phiaj; Hybrid inverters txhawb nqa bidirectional zog khiav, uas tuaj yeem muag hluav taws xob rau hauv daim phiaj thiab yuav hluav taws xob los ntawm daim phiaj thaum photovoltaic thiab lub zog cia tsis txaus. Lawv kuj tuaj yeem txiav tawm ntawm daim phiaj xwm txheej hauv cov phiaj xwm tsis ua haujlwm thiab hloov mus rau txoj kab sib chaws uas siv los ntawm cov roj teeb, ua tiav ob qhov lav ntawm "daim phiaj tseem ceeb thiab tawm daim phiaj thaub qab". Qee cov qauv siab - kawg kuj txhawb kev koom nrog hauv kab sib chaws ncov shaving, kho cov nqi them thiab tso tawm cov tswv yim hauv kev teb rau daim phiaj qhia kom tau txais cov nyiaj tau los ntxiv.
4. Scene adaptation: los ntawm "ib daim phiaj kev sib txuas" mus rau "tag nrho scene cover"
Ordinary inverters feem ntau haum rau cov kab sib txuas dawb huv txuas nrog photovoltaic systems, thiab lawv cov ntawv thov tseem ceeb hauv qhov xwm txheej uas tsis muaj lub zog cia xav tau thiab daim phiaj hluav taws xob ruaj khov; Daim ntawv thov Scope ntawm hybrid inverters yog dav dua: lawv tuaj yeem siv los ua lub hauv paus ntawm cov khoom siv hluav taws xob hauv tsev, txhawb kev lag luam thiab kev lag luam microgrids, txhim kho cov txheej txheem qub photovoltaic los ntawm AC coupling thev naus laus zis, thiab txawm tsim tawm cov kab hluav taws xob hluav taws xob hauv thaj chaw deb nrog cov kab hluav taws xob tsis ruaj khov. Qhov kev hloov pauv tag nrho no ua rau nws qhov kev daws teeb meem zoo tshaj plaws rau ntau qhov chaw xws li tsev, kev lag luam, thiab kev lag luam.
3 Peb lub tswv yim tseem ceeb uas txhawb nqa kev ua haujlwm
1. Bidirectional zog hloov tshuab
Raws li "lub zog tub ntxhais" ntawm lub hybrid inverter, lub bidirectional DC / AC hloov dua siab tshiab module paub txog bidirectional ntws ntawm hluav taws xob lub zog: thaum lub sij hawm ua hauj lwm rau pem hauv ntej, nws converts DC lub hwj chim ntawm lub photovoltaic los yog roj teeb rau hauv AC zog muab lub load; Thaum khiav rov qab, hloov AC lub zog los ntawm daim phiaj mus rau DC lub zog kom them lub roj teeb. Cov qauv siab kawg siv silicon carbide (SiC) cov khoom siv hluav taws xob, nrog rau kev hloov pauv kev ua haujlwm ntawm ntau dua 97%, thiab tuaj yeem tiv taus tam sim no them thiab tso tawm ntawm 240A, haum rau siab - lub zog txuag cov xwm txheej.
2. Intelligent Energy Management System (EMS)
EMS yog "lub hlwb" ntawm hybrid inverters, uas tau hloov kho hom kev khiav hauj lwm raws li cov tswv yim preset los ntawm kev sau tiag - lub sij hawm tsis xws li photovoltaic tso zis, roj teeb SOC (tseem tshuav), load zog, thiab kab hluav taws xob hluav taws xob. Piv txwv li, kev txhawb nqa lub sij hawm siv hluav taws xob cov nqi teb muaj nuj nqi, kev yuav khoom hluav taws xob los ntawm daim phiaj them nqi hluav taws xob thaum lub sij hawm hluav taws xob qis, thiab siv cov roj teeb hluav taws xob los muab cov khoom thauj thaum lub sij hawm ncov, txo cov nqi hluav taws xob los ntawm "tsawg cia thiab tso tawm siab"; Qee cov qauv kuj tseem tuaj yeem txuas nrog ntau lub roj teeb kom ua tiav kev nthuav dav ntawm lub zog cia.
3. Ntau hom kev hloov tshuab
Kev siv cov kab sib txuas sib txuas, tawm ntawm kab sib chaws, thiab cov kev hloov pauv tsis sib haum los ntawm kev tswj hwm kev tswj hwm: kev ua haujlwm synchronously nrog daim phiaj hauv kab sib txuas, txaus siab rau daim phiaj kev txhawb nqa thiab cov nyiaj tau los ntawm kev muag hluav taws xob; Kev ywj pheej ua haujlwm nyob rau hauv hom phiaj tawm, siv los ntawm photovoltaics thiab roj teeb; Thaum muaj ib daim phiaj hluav taws xob tsis ua hauj lwm, daim phiaj mus rau kev sib hloov ntawm daim phiaj tuaj yeem ua tiav li ntawm 10 milliseconds kom tsis txhob poob vim hluav taws xob poob. Qee cov qauv kuj txhawb kev ua haujlwm sib luag ntawm ntau lub tshuab, thiab 10 cov khoom siv tuaj yeem ua haujlwm ua ke kom hloov mus rau qhov sib txawv ntawm qhov yuav tsum tau ua los ntawm kW mus rau MW.