Igama elipheleleyo lemicro-invertersisiguquli segridi yelanga encinci.Isetyenziswa kakhulu kwiinkqubo zokuvelisa amandla e-photovoltaic kwaye ngokuqhelekileyo ibhekisela kwi-inverters kunye ne-MPPT ye-module-level kunye nokulinganisa amandla angaphantsi kwe-1500W.Micro-inverterszincinci ngokwesayizi xa zithelekiswa nee-inverters eziqhelekileyo ezisembindini.Micro-invertersGuqula imodyuli nganye ngokwayo.Inzuzo kukuba imodyuli nganye inokulawulwa ngokuzimeleyo yiMPPT.Oku kuphucula kakhulu ukusebenza kakuhle ngokubanzi.Ngaxeshanye,micro-invertersinokunqanda iingxaki zombane ophezulu we-DC, ukukhanya okulambathayo, kunye nefuthe lemibhobho yee-inverters ezisembindini.
Micro-inverterslawula ukuqokelelwa kwamandla elanga kwiipaneli zomntu ngamnye ukunyusa ukusebenza kakuhle kofakelo lwelanga, kunokuba usebenze kuyo yonke inkqubo njenge-inverter ephakathi.Kwixesha elidlulileyo, iindlela zokulawula eziyinkimbinkimbi ezisetyenziselwa ukuqinisekisa ukusebenza okuphezulu ngexesha lokuqokelela kwelanga ziye zanda iindleko kwaye zinciphisa ukuthathwa kwe-micro-inverters.Iisekethe ezidityanisiweyo kunye nezisombululo ezisekwe kwiprosesa zombini zinobugocigoci kwaye zinexabiso elisebenzayo ukuphatha ulawulo lwengqiqomicro-inverteruyilo.Izilawuli zombane ezahlukeneyo kunye nabalawuli bakwabonelela ngezisombululo ezongezelelweyo zokuvelisa amandla kwimveliso yeDC yeepaneli zelanga.
Ngendlela elulamicro-inverteruyilo, i-interleaved esebenzayo i-flyback inverter iphucula amandla ombane aphantsi ombane we-DC ukusuka kwiphaneli yelanga kunye nombane ophezulu we-AC waveform efunwa yigridi.
Njengoyilo lonikezelo lombane,micro-inverteruyilo lufuna iindlela ezahlukeneyo zokuphucula ukusebenza kakuhle kunye nokuthembeka.Kusetyenziswa i-interleaved flyback topology, enceda ekunciphiseni i-rms ripple current ngayo, ngokwandisa ubomi be-electrolytic capacitors kolu yilo.Ukongeza, ukusetyenziswa kobuchule bokubamba okusebenzayo kuvumela umjikelo ophezulu womsebenzi ophezulu, ovumela ukusetyenziswa komlinganiselo ophezulu wokujika.Oku kunokunciphisa kakhulu umthwalo wangoku kwicala eliphambili kunye nomthwalo wombane kwicala lesibini.
Ukuqinisekisa ukuveliswa kwamandla aphezulu, i-inverter kufuneka ikwazi ukuphendulamicro-inverter'sukulawula ingqiqo.Le ngqiqo yenzelwe ukugcina i-voltage kunye ne-current converter ngokusondeleyo kangangoko kunokwenzeka kwiimpawu ezifunwayo eziveliswa yi-algorithm yeMPPT.Okubaluleke ngakumbi, igridi-iqhagamshelwemicro-inverterskufuneka ikwazi ukuqhawula kwigridi kwimeko yokusilela kombane.Ezi mpawu zokukhusela impazamo, nazo, zifuna ukuba i-inverter ibe nobuncinci bokugqithisa kunye nokubonwa kwe-undervoltage.
Uyilo lwemicro-invertersibeka ulawulo, ukuguqulwa kwamandla kunye neemfuno ezifanelekileyo ezithintele ukusetyenziswa kwazo ngokubanzi kwixesha elidlulileyo.Nangona kunjalo, ngokunyuka kwezisombululo ezidibeneyo, abaqulunqi bangasebenzisa izixhobo ezahlukeneyo ezifanelekileyo.Ngelixa abaqhubekekisi abazinikeleyo banokubonelela ngeempawu zolawulo oluphezulu kunye nokusebenza kweMPPT efunekayomicro-inverters, uyilo lwenqanaba lokuguqulwa kwamandla lufuna izixhobo ezinokuzisa ngokukhuselekileyo nangokufanelekileyo ukusebenza kunye nokusebenza okufunekayo kwigridi.Ngoluhlu olubanzi lwabalawuli bokutshintsha okuhlanganisiweyo kunye nee-PMICs ezikhoyo, iinjineli zinokwenza amanqanaba asebenzayo, angabizi kakhulu okuguqula amandla kwi-micro-inverter designs.
Ixesha lokuposa: Aug-31-2023