Izilawuli zokushaja ze-MPPTnomaUkulandelela Amaphuzu Amandla aphezuluIzilawuli zokushaja ziwuhlobo lwezilawuli zokushaja ezilandelela amandla endaweni enkulu yamandla.
Iyini i-MPPT Charge Controller?
Isilawuli sokushaja se-MPPT siqinisekisa ukuthi imithwalo iyatholwaubuningi bamanjeukusetshenziswa (ngokushaja ibhethri ngokushesha).Iphoyinti lamandla elikhulu lingaqondwa njenge-voltage ekahlelapho amandla aphezulu ahanjiswa emithwalweni, ngeukulahlekelwa okuncane.Lokhu kubuye kubizwe ngokuthii-voltage yamandla aphezulu.
Liyini iphuzu eliphezulu lamandla (MPP)?
Iindawo enkulu yamandla (MPP)ichaza iphuzu ku-voltage yamanje (IV) ijika lapho idivayisi ye-solar PV ikhiqiza khona okukhiphayo okukhulu kakhulu okungukuthi lapho umkhiqizo wamandla wamanje (I) kanye ne-voltage (V) ubuningi.I-MPP ingase ishintshe ngenxa yezici zangaphandle ezifana nezinga lokushisa. , izimo zokukhanya nokusebenza kwedivayisi.Ukuze kuqinisekiswe ukuphuma kwamandla aphezulu (i-Pmax) yedivayisi ye-solar PV ngokubuka lezi zici zangaphandle,ama-trackers okukhipha amandla aphezulu (MPPT)ingase isetshenziselwe ukulawula ukumelana nocingo.
Zisebenza kanjani izilawuli zokushaja ze-MPPT?
Noma ubani ojwayelene nezici zokushaja nokushajwa kwebhethri ujwayelene neqiniso lokuthi amandla kagesi ebhethri ayahlukahluka nokuqukethwe kokushajwa kwawo.Njengoba yamanje igeleza isuka kumandla aphezulu iye kumandla aphansi, lapho i-gradient ishubile noma umehluko we-voltage, mkhulu iukugeleza kwamanje.Le gradient engaba khona ingenziwa ishube ngezindlela ezimbili:
1. Ngokwandisa i-voltage ephumayo ye-Solar Panel
2. Ngokunciphisa i-voltage yebhethri (ukukhulula ibhethri)
Isilawuli – Iphuzu Lamandla Elikhulu[/caption]
Ukusebenzisa i-voltage yephaneli ekhuphukile ukuletha amandla aphezulu
Manje amabhethri angashajwa kuphela uma i-voltage ephumayo yephaneli yelanga inkulu kunaleyo yamabhethri, ukuze kube lula ukugeleza kwamandla ukusuka kuphaneli kuya ebhethrini.I-voltage ephumayo yephaneli incike ezicini ezahlukahlukene, kufaka phakathi isimo sezulu ( irradiance).Ngosuku olunelanga i-voltage ephumayo ingase ibe phezulu kuno-ukalwe okukhiphayo voltage, kuyilapho phakathi nosuku oluguqubele i-voltage ephumayo cishe incane.Izilawuli ezivamile azinawo amandla okusebenzisa le voltage ephumayo ephezulu ukuze ilethe amandla engeziwe.Nokho izilawuli zokushaja ze-MPPT zinekhono lokulungisa i-voltageukuze uthole umfutho wamanje ngezikhathi zesidingo esiphakeme kakhulu.I-MPPT iletha inani eliphakeme kunesilinganiso esilinganiselwe ebhethrini njengoba ikwazi ukulungisa i-voltage nesilinganiso samanje.
Ukusebenzisa i-voltage yebhethri ukuletha amandla aphezulu
I-Current ne-Voltage ihambisana ngokuphambene.Ngamanye amazwi, uma i-current inyuka, i-voltage iyehla futhi ngokuphambene nalokho.Ngokwehlisa i-current ngokwethula ukumelana okuthile endleleni yamanje, isilawuli se-MPPT sokushaja singakhuphula i-voltage.Lokhuvoltage kuya isilinganiso samanjeukulungiswa kubizwa ngokuthi ukulandelela indawo yamandla aphezulu.I-MPPT ivamise ukukhuphula amandla ebhethri cishe ngo-25% kuya ku-30%.Okubalulekile ukukhumbula ukuthi ibhethri elilahliwe elingu-80% lizokwaziukushaja ngokusheshakunebhethri elilahliwe elingamaphesenti angu-50. Isizathu salokhu ukuthi lapho ibhethri iqala ukukhipha, i-voltage yayo nayo iyancipha.Iigebe elikhuluphakathi kwe-voltage ephumayo yephaneli yelanga kanye ne-voltage yebhethri, amandla amaningi azogeleza ebhethri, futhi ibhethri izoshajwa ngokushesha.
Izindlela ezihlanganisiwe zokushaja ibhethri eliphelele
Izilawuli zokushaja ze-MPPT zisebenzisa zombili izimiso ezishiwo ngenhla ukuletha inani eliphezulu lamandla.Lolu hlobo lwezilawuli zokushaja zelanga ziza zihlelwe kusengaphambiliama-set-points angalungisekaengahlelwa futhi ilungiswe ngokwezidingo zakho.Uma udinga ukukhetha phakathi kwezinga kanye nesilawuli seshaja se-MPPT, ngokuvamile ukukhokha kancane isilawuli se-MPPT esifanele kuyindlela okufanele uhambe ngayo.
Isikhathi sokuthumela: Aug-22-2022