Kuhlelo lwe-photovoltaic, izinga lokushisa le-ACikhebulaibuye ihluke ngenxa yezindawo ezahlukene lapho imigqa ifakwe khona.Ibanga phakathi kwe-inverter nendawo yokuxhuma igridi lihlukile, okuholela ekwehleni kwe-voltage ehlukene kukhebula.Kokubili izinga lokushisa nokwehla kwamandla kagesi kuzothinta ukulahleka kwesistimu.Ngakho-ke, kuyadingeka ukuklama ngokunengqondo ububanzi bezintambo zokukhishwa kwamanje kwe-inverter, futhi ucabangele ngokucophelela izici ezihlukahlukene, ukuze kuncishiswe ukutshalwa kwezimali kokuqala kwesiteshi samandla se-photovoltaic futhi kunciphise ukulahlekelwa komugqa wesistimu.
Lapho uklama nokukhetha izintambo, imingcele yezobuchwepheshe efana nomthamo wokuthwala wamanje olinganiselwe, i-voltage, nezinga lokushisa lekhebula kubhekwa ngokuyinhloko.Ngesikhathi sokufakwa, ububanzi obungaphandle, i-radius yokugoba, ukuvimbela umlilo, njll. kwekhebula nakho kucatshangelwa.Uma ubala izindleko, cabangela intengo yekhebula.
1. Ukukhishwa kwamanje kwe-inverter kufanele kuhambisane nomthamo wamanje wokuthwala wekhebula
Umphumela wamanje we-inverter unqunywa amandla.I-inverter yesigaba esisodwa samanje=amandla/230, inverter yezigaba ezintathu current=power/(400*1.732), namanye ama-inverter nawo angalayishwa ngokweqile izikhathi ezingu-1.1.
Umthamo wamanje wokuthwala wekhebula unqunywa impahla, ububanzi bocingo kanye nezinga lokushisa.Kunezinhlobo ezimbili zezintambo: ucingo lwethusi nocingo lwe-aluminium, ngayinye ewusizo.Ngokombono wokuphepha, kunconywa ukusebenzisa intambo yethusi kukhebula le-AC eliphumayo le-inverter, futhi ucingo oluthambile lwe-BVR ngokuvamile lukhethelwa isigaba esisodwa.Intambo, i-PVC insulation, i-copper core (ethambile) isigaba sikagesi sentambo engu-300/500V, isigaba sesithathu sikhetha i-voltage engu-450/750 (noma 0.6kV/1kV) isigaba se-YJV, i-YJLV efakwe i-XLPE efakwe i-PVC Sheathed power cable, ubuhlobo phakathi i-cutoff ye-conductor kanye nezinga lokushisa, uma izinga lokushisa le-ambient lingaphezu kuka-35°C, umbane ovumelekile kufanele wehliswe cishe ngo-10% kukho konke ukukhuphuka kwezinga lokushisa ngo-5°C;uma izinga lokushisa le-ambient lingaphansi kuka-35 ° C, izinga lokushisa Lapho izinga lokushisa lehla ngo-5 ° C, lamanje elivumelekile linganyuswa cishe ngo-10%.Ngokuvamile, uma ikhebula lifakwe endaweni enomoya wasendlini.
2. Ikhebulaumklamo wezomnotho
Kwezinye izindawo, i-inverter ikude nendawo yokuxhuma igridi.Nakuba ikhebula lingahlangabezana nezidingo zomthamo wamanje wokuthwala, ukulahlekelwa komugqa kukhulu ngokuqhathaniswa ngenxa yekhebula ende.Uma i-warp inkulu, iyancipha ukumelana kwangaphakathi.Kodwa futhi cabangela intengo yekhebula, ububanzi obungaphandle be-inverter AC okukhipha uphawu amatheminali.
Isikhathi sokuthumela: Aug-24-2022