Eminyakeni yamuva nje, ubuchwepheshe bokuphehla kwamandla we-Photovoltaic buthuthukile ngokuxhuma kanye nemingcele, namandla afakiwe anda ngokushesha. Kodwa-ke, isizukulwane samandla we-Photovoltaic sinamaphutha afana ne-Index futhi engalawuleki. Ngaphambi kokuthi kubhekwane nakancane, ukufinyelela okuqondile kwegridi yamandla azoletha umthelela omkhulu futhi kuthinte ukusebenza okuzinzile kwegridi yamandla. . Ukungezwa izixhumanisi zokugcina amandla kungenza amandla okukhishwa kwamandla we-photovoltaic kungenza kahle futhi ngokungathi stheketha okuvela kugridi, futhi ukufinyelela okukhulu kugridi ngeke kuphazamise ukuqina kwegridi. Kanye ne-Photovoltaic + Energy Storage, uhlelo lunebanga lesicelo ebanzi.
Uhlelo lwe-Photovoltaic Storage System, kufaka phakathi amamojula elanga, abalawuli,ama-inverters, amabhabhestu, imithwalo neminye imishini. Njengamanje, kunemizila eminingi yezobuchwepheshe, kepha amandla adinga ukuqoqwa ngephuzu elithile. Njengamanje, kunezihloko ezimbili ikakhulukazi: I-DC Coupling "DC Coupling" kanye ne-AC Coupling "Coupling".
1 dc ehlanganisiwe
Njengoba kukhonjisiwe kwisibalo esingezansi, amandla e-DC akhiqizwe yimodyuli ye-Photovoltaic egcinwe epakishi yebhethri ngokusebenzisa isilawuli, futhi igridi ingakhokhisa ibhethri ngokusebenzisa i-bitirectional DC-AC Converter. Iphuzu lokubutha lamandla lisekupheleni kwebhethri le-DC.
Umgomo osebenzayo we-DC Coupling: Lapho uhlelo lwe-Photovoltaic lusebenza, isilawuli se-MPPT sisetshenziselwa ukushaja ibhethri; Lapho umthwalo kagesi ufunwa, ibhethri lizokhipha amandla, kanti okwamanje kunqunywa ngumthwalo. Uhlelo lokulondolozwa kwamandla luxhumeke kugridi. Uma umthwalo umncane futhi ibhethri likhokhiswa ngokuphelele, uhlelo lwe-Photovoltaic lunganikeza amandla kugridi. Lapho amandla okulayisha amakhulu kunamandla we-PV, igridi ne-PV kunganikeza amandla emthwalweni ngasikhathi sinye. Ngoba ukukhiqizwa kwamandla we-Photovoltaic kanye nokusetshenziswa kwamandla okulayisha akunzi luzinzile, kuyadingeka ukuncika ebhethri ukulinganisa amandla ohlelo.
2 ac kuhlanganisiwe
Njengoba kukhonjisiwe kwisibalo esingezansi, kukhiqizwa okuqondile kwemodyuli ye-Photovoltaic kuguqulwe yaba ukushintshana kwamanje nge-inverter, futhi kunikezwe ngokuqondile kumthwalo noma kuthunyelwe kugridi. Igridi ingakhokhisa ibhethri ngokusebenzisa i-bitirectional DC-AC BIDIRECAL CONCERTER. Iphuzu lokubutha lamandla lisekupheleni kwezokuxhumana.
Umgomo osebenzayo wokuhlanganisa i-AC Uhlelo lwe-Photovoltaic luqukethe ama-Photovoltaic Array kanye nabakwa-Inverters abaxhumeke ngegridi; Uhlelo lwebhethri luqukethe amaphakethe webhethri kanye nabakwaBidirectional Inverters. Lezi zinhlelo ezimbili zingasebenza ngokuzimela ngaphandle kokuphazamisana, noma zingahlukaniswa negridi enkulu yamandla ukwakha uhlelo lwegridi elincane.
Kokubili ukuhlanganisa i-DC Coupling kanye nokuhlangana kwe-AC njengamanje kuxazululwa izixazululo ezivuthiwe, ngayinye enezinzuzo zayo nobunzima. Ngokusho kwezicelo ezahlukahlukene, khetha ikhambi elifanele kakhulu. Okulandelayo ukuqhathanisa izixazululo ezimbili.
1 ukuqhathanisa izindleko
I-DC coupling ifaka isilawuli, i-inverter ye-bitirectional kanye nokudlulisa, ukuhlanganisa i-AC kufaka phakathi i-inverter exhunywe yigridi, i-inserter ye-bitirectional kanye nekhabethe lokusatshalaliswa kwamandla. Ngokombono wezindleko, isilawuli sishibhile kune-inverter exhunywe yigridi. Ukushintshwa kokushintshana kushibhile futhi kunekhabethe lokusatshalaliswa kwamandla. Isikimu sokuhlanganisa i-DC singenziwa futhi ngomshini wokulawula kanye ne-Inverter okuhlanganisiwe, okungagcina izindleko zemishini nezindleko zokufaka. Ngakho-ke, izindleko zohlelo lwe-DC Coupling ziphansi kancane kunalokho kwe-AC Coupling Scheme.
Ukuqhathanisa okusebenzayo okungu-2
Uhlelo lokuhlangana kwe-DC, isilawuli, ibhethri kanye ne-inverter lixhumene nochungechunge, ukuxhumana kusondele kakhulu, kepha ukuguquguquka kumpofu. Ngohlelo lokuhlanganehla lwe-AC, i-inverter exhunywe ngegridi, ibhethri lesitoreji kanye nesiguquli se-bitirectional kufana, ukuxhumana akuqinile, futhi ukuguquguquka kuqinile. Isibonelo, ngohlelo olusuvele lufakiwe lwe-PhotoVoltaic System, kubalulekile ukufaka uhlelo lokugcina amandla, kungcono ukusebenzisa i-AC Coupling, inqobo nje uma ibhethri kanye nesiguquli se-bidirectional kufakiwe, ngeke kuthinte uhlelo lwangempela lwe-Photovoltaic, futhi Uhlelo lokugcina Amandla ngokwesimiso, umklamo awunabo ubudlelwano obuqondile nohlelo lwe-Photovoltaic futhi lunganqunywa ngokuya ngezidingo. Uma kunguhlelo olusanda kufakwa kwegridi, ama-Photovoltaics, amabhethri, kanye nama-inverterter kumele aklanywe ngokuya ngamandla okulayisha umsebenzisi kanye nokusebenzisa amandla, kanye nohlelo lokuhlanganisa i-DC lufaneleke kakhulu. Kodwa-ke, amandla ohlelo lokuhlanganisa i-DC lincane, ngokuvamile ngaphansi kwama-500kW, futhi kungcono ukulawula uhlelo olukhudlwana nge-AC Coupling.
3 Ukuqhathanisa Ukuqhathanisa
Ngokombono wokusebenza kahle kwe-Photovoltaic ukusetshenziswa, lezi zinhlelo ezimbili zinezimpawu zazo. Uma umsebenzisi elayisha okuningi phakathi nosuku futhi ngaphansi ebusuku, kungcono ukusebenzisa i-AC Coupling. Amamojula we-Photovoltaic anikeze ngokuqondile amandla emthwalweni nge-inverter exhunywe ngegridi, futhi ukusebenza kahle kungafinyelela ngaphezu kwama-96%. Uma umthwalo womsebenzisi uncane kancane phakathi nosuku nokuningi ebusuku, futhi isizukulwane samandla we-Photovoltaic sidinga ukugcinwa phakathi nosuku futhi sisetshenziswe ebusuku, kungcono ukusebenzisa i-DC coupling. Imodyuli ye-Photovoltaic igcina ugesi kubhethri ngokusebenzisa isilawuli, futhi ukusebenza kahle kungafinyelela ngaphezu kwama-95%. Uma kungukuhlangana kwe-AC, ama-Photovoltaics kumele aqale aguqulwe abe amandla e-AC ngokusebenzisa i-inverter, abese aguqulwe abe amandla we-DC ngokusebenzisa isiguquli se-bitirectional, futhi ukusebenza kahle kuzokwehla ku-90%.
Amensolar'sUchungechunge lwe-N3HX lwahlukanisa ama-Inverters wesigabaUkusekelwa kwe-AC Coupling futhi yakhelwe ukuthuthukisa amasistimu wamandla elanga. Samukela abasabalalisi abaningi ukuthi bahlanganyele nathi ekuthuthukiseni le mikhiqizo emisha. Uma unesifiso sokwandisa iminikelo yakho yomkhiqizo nokunikeza ama-inverters asezingeni eliphakeme kumakhasimende akho, sikumema ukuthi uhlanganyele nathi futhi uzuze kubuchwepheshe obuthuthukisiwe nokwethenjwa kochungechuvulu lwe-N3HX. Xhumana nathi namuhla ukuze uhlole leli thuba elijabulisayo ngokubambisana nokukhula embonini yamandla avuselelekayo.
Isikhathi sePosi: Feb-15-2023
