Ekusethweni okuhlanganisiwe kwe-DC, i-solar array ixhumeka ngqo ebhange lebhethri ngesilawuli secala. Lokhu kucushwa kujwayelekile ezinhlelweni ze-off-grid kodwa futhi zingashintshwa ukuze kusethelwe ama-grid-aboshwe nge-600-volt string inverter.
Isilawuli se-600V ukushaja sisebenzela ukubuyisa izinhlelo eziboshwe ngama-grid ngamabhethri futhi singahlanganiswa nanoma yiziphi izikhungo zethu zamandla wangaphambi kwentambo ezingenalo umlawuli wokushaja. Ifakwe phakathi kwe-PV ekhona kanye ne-inverter eboshwe ngegridi, enezinto zokushintshwa ngesandla zokuhlangana phakathi kwezindlela ze-grid-tie ne-off-grid. Kodwa-ke, ayinakho ukuhlelwa, okudinga ukushintshwa komzimba ukuqala ukushaja kwebhethri.
Ngenkathi i-inverter ekwenzelwe ibhethri ingenza ngokuzimela izinto ezibalulekile ezibalulekile, i-array ye-PV ngeke ikhokhise amabhethri kuze kube yilapho ushintsho lusebenze ngesandla. Lokhu kudinga ukuba khona kwe-ortite ukuze kuqale ukushaja ilanga, njengoba ukhohlwa ukwenza kanjalo kungahle kube nomphumela kumabhethri atholakalayo angenamandla okuvuselelwa kwelanga.
Izinzuzo ze-DC coupling zifaka ukuhambisana nobubanzi obubanzi be-off-grid inverters kanye nobukhulu bebhange lebhethri kuqhathaniswa nokuhlangana kwe-AC. Kodwa-ke, ukuthembela kwalo ekushintsheni kwesandla kusho ukuthi kufanele utholwe ukukhalela i-PV ukushaja, ukwehluleka okusazonikeza ama-backup amandla kodwa ngaphandle kokuphindaphindeka kwelanga.
Isikhathi sePosi: Meyi-02-2024