Photovoltaic micro inverters feem ntau xa mus rau inverters hauv photovoltaic lub zog tsim tshuab nrog lub zog tsawg dua 4000 watts thiab qib MPPT, tseem hu ua micro photovoltaic grid txuas inverters.
Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm micro inverter:
1. DC input:Lub zog DC tsim los ntawm photovoltaic panels yog xa mus rau micro inverter los ntawm cables.
2. Qhov siab tshaj plaws Power Point Tracking (MPPT):Micro inverters feem ntau suav nrog MPPT uas saib xyuas cov zis hluav taws xob thiab tam sim no ntawm lub vaj huam sib luag photovoltaic kom ntseeg tau tias lub zog siab tshaj plaws tau muab rho tawm ntawm lub vaj huam sib luag.
3. Inverter:Micro inverters hloov DC lub zog hluav taws xob mus rau AC hluav taws xob hluav taws xob. Nyob rau hauv cov txheej txheem no, nws yuav tsum tau kho qhov tso zis voltage thiab zaus kom phim tus qauv voltage thiab zaus ntawm tsev neeg lossis kev lag luam fais fab.
4. Synchronization thiab kab sib txuas:Micro inverters yuav tsum xyuas kom meej tias lub zog AC generated yog synchronized nrog daim phiaj, thiab cia li nres ua hauj lwm nyob rau hauv cov ntaub ntawv ntawm tsis ruaj tsis khov daim phiaj voltage los yog fais fab tuag kom muaj kev ruaj ntseg.
Piv rau ib txwm centralized inverters, micro inverters invert txhua yam. Nws qhov zoo dua yog tias nws muaj peev xwm tswj hwm txhua yam nrog MPPT, uas tuaj yeem txhim kho tag nrho cov txiaj ntsig zoo, thaum tseem zam qhov DC qhov hluav taws xob siab, tsis muaj zog lub teeb, thiab cov txiaj ntsig ntawm lub hauv nruab nrab inverters.
Kev sib xyaw ntawm micro inverters thiab kev sib txuas lus ua haujlwm tuaj yeem siv los saib xyuas cov xwm txheej ntawm ntau lub modules thiab kuaj xyuas cov modules tsis raug. Thaum siv lub tshuab hluav taws xob photovoltaic nrog micro thim rov qab thev naus laus zis, yog tias ib qho ntawm lub hnub ci tsis tuaj yeem ua haujlwm tau zoo, tsuas yog lub vaj huam sib luag yuav raug cuam tshuam. Lwm cov khoom siv hluav taws xob photovoltaic yuav ua haujlwm ntawm lawv cov kev ua haujlwm zoo, ua rau muaj kev ua haujlwm zoo dua qub thiab muaj zog ntau dua.
Raws li txoj kev sib txuas kab sib txuas, nws tuaj yeem muab faib ua kab sib txuas nrog micro thim rov qab thiab tawm kab sib chaws micro rov qab.
Raws li cov zis voltage, nws muab faib ua ib-theem micro inverter thiab peb-theem micro inverter.
Micro inverter muaj ntau yam zoo:
1. Traditional centralized inverters lossis hlua inverters rau kev nyab xeeb feem ntau muaj cov hluav taws xob ncaj qha tam sim no txij li ob peb puas volts mus rau ntau txhiab volts, ua rau lawv nquag ntes hluav taws thiab nyuaj rau kev tua ib zaug ignited. Micro thim rov qab tsuas yog muaj DC voltage ntawm ob peb kaum ntawm volts, tag nrho cov kev sib txuas ua ke, txo qis kev nyab xeeb rau qhov loj tshaj plaws.
2. Kev soj ntsuam xyuas qib ntse, qhov chaw ua haujlwm ntawm txhua yam tuaj yeem pom hauv ECU.
3. Kev ua haujlwm siab, MPPT nrog ntau lub zog tsim hluav taws xob, tsis muaj qhov cuam tshuam, txo qhov cuam tshuam ntawm kev cuam tshuam ntawm kev tsim hluav taws xob;
Lub teeb pom kev tsis muaj zog yog qhov zoo vim tias qhov pib hluav taws xob qis, tsuas yog 20V, thiab nws tuaj yeem ua haujlwm nyob rau hauv lub teeb tsis muaj zog.
4. Lub neej feem ntau yog 25 xyoo rau kev tsim micro rov qab.
5. Yooj yim thiab zoo nkauj, nws tsis tas yuav tsum muaj kev tsim kho ntawm chav faib khoom tshwj xeeb. Lub micro inverter tuaj yeem ntsia tau ncaj qha tom qab cov khoom siv lossis ntawm cov brackets. Raws li nws yog cov qauv sib luag, nws tuaj yeem ntsia tau ncaj qha thaum qhov ntsuas tau nce ntxiv tom qab yam tsis hloov pauv qhov kev teeb tsa yav dhau los.
