Abanye abantu bathi intengo ye-photovoltaic inverter iphakeme kakhulu kunemodyuli, uma ingasebenzisi ngokugcwele amandla aphezulu, izobangela ukuchithwa kwezinsiza. Ngakho-ke, ucabanga ukuthi ukukhiqizwa kwamandla okuphelele kwesitshalo kungandiswa ngokungeza amamojula we-photovoltaic ngokusekelwe kumandla okufaka aphezulu we-inverter. Kodwa ingabe kunjalo ngempela?

Eqinisweni, akukhona lokhu okwashiwo umngane. I-Photovoltaic inverter kanye ne-photovoltaic module ratio empeleni iyingxenye yesayensi. I-collocation enengqondo kuphela, ukufakwa kwesayensi kunganikeza ngempela ukudlala okugcwele ekusebenzeni kwengxenye ngayinye, ukuze kuzuzwe ukusebenza kahle kokukhiqiza amandla.Izimo eziningi kufanele zicatshangelwe phakathi kwe-photovoltaic inverter ne-photovoltaic module, njenge-light elevation factor, indlela yokufaka, isici sesayithi, i-module kanye ne-inverter ngokwayo njalonjalo.

Okokuqala, i-light elevation factor

Izindawo zemithombo yamandla elanga zingahlukaniswa zibe amakilasi amahlanu, uhlobo lokuqala, lwesibili nolwesithathu lwezindawo lapho imithombo yokukhanya icebile, iningi lezwe lethu lingelamakilasi, ngakho-ke lifaneleka kakhulu ukufakwa kohlelo lokukhiqiza amandla e-photovoltaic. Nokho, amandla emisebe ayahluka kakhulu ezindaweni ezahlukene. Ngokuvamile, i-Angle yokuphakama yelanga inkulu, imisebe yelanga inamandla, futhi ukuphakama kokuphakama, kunamandla emisebe yelanga. Ezindaweni ezinomfutho ophakeme wemisebe yelanga, umphumela wokushisa wokushisa we-photovoltaic inverter nawo umpofu, ngakho-ke i-inverter kufanele yehliswe ukuze isebenze, futhi ingxenye yezingxenye izoba ngaphansi.

Okubili, izici zokufaka

Isilinganiso se-inverter nengxenye yesiteshi samandla e-photovoltaic siyahlukahluka ngendawo yokufaka nendlela.

1.Dc side system ukusebenza kahle

Ngenxa yokuthi ibanga phakathi kwe-inverter ne-module lifushane kakhulu, ikhebula le-DC lifushane kakhulu, futhi ukulahlekelwa kuncane, ukusebenza kahle kwesistimu ye-DC side kungafinyelela ku-98%. Ngenxa yokuthi ikhebula le-DC lide, amandla asuka emisebeni yelanga aye kumojula ye-photovoltaic adinga ukudlula kukhebula le-DC, ibhokisi lokuhlangana, ikhabhinethi yokusabalalisa ye-DC nezinye izinto zokusebenza, kanye nokusebenza kahle kohlelo oluseceleni kwe-DC ngokuvamile lungaphansi kuka-90%.

2. Izinguquko ze-voltage yegridi yamandla

Amandla okukhipha aphezulu alinganiselwe we-inverter awashintshi. Uma igridi exhunywe kugridi yehla, i-inverter ayikwazi ukufinyelela okukhiphayo okulinganiselwe. Ake sithi sisebenzisa i-inverter engu-33kW, umkhawulo ophezulu ophumayo wamanje ngu-48A kanye ne-voltage ephumayo elinganiselwe ngu-400V. Ngokwefomula yokubala amandla ezigaba ezintathu, amandla okukhipha angu-1.732*48*400=33kW. Uma i-voltage yegridi yehlela ku-360, amandla okukhiphayo azoba ngu-1.732*48*360=30kW, angakwazi ukufinyelela amandla alinganiselwe. Ukwenza ukukhiqizwa kwamandla kungasebenzi kahle.

3.inverter ukushisa ukushisa

Izinga lokushisa le-inverter liphinde lithinte amandla okukhiphayo we-inverter. Uma umphumela wokukhipha ukushisa kwe-inverter ungalungile, khona-ke amandla okukhiphayo azokwehla. Ngakho-ke, i-inverter kufanele ifakwe ngaphandle kwelanga eliqondile, izimo ezinhle zokungenisa umoya. Uma imvelo yokufaka ingeyinhle ngokwanele, khona-ke ukwehla okufanele kufanele kucatshangelwe ukuvimbela inverter ekushiseni.

Ezintathu. Izingxenye ngokwazo

Amamojula we-Photovoltaic ngokuvamile anempilo yesevisi yeminyaka engu-25-30. Ukuze uqinisekise ukuthi imodyuli isengakwazi ukugcina ukusebenza kahle okungaphezu kuka-80% ngemva kokuphila kwesevisi evamile, imboni yemojula evamile inomkhawulo owanele we-0-5% ekukhiqizeni. Ngaphezu kwalokho, ngokuvamile sikholelwa ukuthi izimo zokusebenza ezijwayelekile zemodyuli zingama-25 °, futhi izinga lokushisa lemojula ye-photovoltaic liyancipha, amandla emojula azokwanda.

Okwesine, i-inverter uqobo lwayo

1.inverter ukusebenza kahle nokuphila

Uma senza i-inverter isebenze ngamandla aphezulu isikhathi eside, impilo ye-inverter izoncishiswa. Ucwaningo lubonisa ukuthi impilo ye-inverter esebenza ku-80% ~ 100% amandla iyancipha ngo-20% kunalokho ku-40% ~ 60% isikhathi eside. Ngenxa yokuthi uhlelo luzoshisa kakhulu uma lusebenza ngamandla amakhulu isikhathi eside, izinga lokushisa lesistimu liphezulu kakhulu, elithinta impilo yesevisi.

2,uhla lwe-voltage olusebenza kakhulu lwe-inverter

I-voltage esebenzayo ye-inverter ku-voltage elinganiselwe, ukusebenza kahle okuphezulu kakhulu, i-inverter yesigaba esisodwa engu-220V, okokufaka kwe-inverter okulinganiselwe i-voltage engu-360V, i-inverter yezigaba ezintathu engu-380V, i-voltage elinganiselwe yokufakwayo engu-650V. Njenge-3 kw photovoltaic inverter, enamandla angu-260W, i-voltage esebenzayo yamabhulokhi angu-30.5V 12 iyona efaneleka kakhulu; Futhi i-inverter engu-30 kW, ukusatshalaliswa kwamandla kwezingxenye ezingu-260W izingcezu ezingu-126, bese indlela ngayinye izintambo ezingu-21 zifaneleka kakhulu.

3. Umthamo wokulayisha ngokweqile we-inverter

Ama-inverter amahle ngokuvamile anomthamo wokugcwala, futhi amanye amabhizinisi awanawo umthamo wokugcwala. Isiguquli esinamandla okulayisha ngokweqile singalayisha kakhulu amandla amakhulu okukhipha izikhathi ezingu-1.1 ~ 1.2, singahlonyiswa ngezingxenye ezingu-20% ezingaphezu kwe-inverter ngaphandle komthamo wokulayisha ngokweqile.

I-inverter ye-Photovoltaic kanye ne-module ayiyona into engahleliwe futhi, ukuze ibe yi-collocation enengqondo, ukuze kugwenywe ukulahlekelwa.Lapho ufaka iziteshi zamandla e-photovoltaic, kufanele sicabangele izici ezihlukahlukene ngokuphelele, futhi sikhethe amabhizinisi e-photovoltaic aneziqu ezinhle kakhulu zokufakwa.