Ngenxa yokwahluka kwezakhiwo, kuya kukhokelela ngokuqinisekileyo kwiintlobo ezahlukeneyo zofakelo lweepaneli zelanga. Ukuze ukwandise ukusebenza kakuhle kokuguqulwa kwamandla elanga ngelixa kuthathelwa ingqalelo inkangeleko entle yesakhiwo, oku kufuna ukuhlukahluka kwee-inverters zethu ukufezekisa eyona ndlela ibalaseleyo yamandla elanga. Uguqulo. Ezona ndlela zixhaphakileyo ze-solar inverter ehlabathini zezi: ii-centralized inverters, i-string inverters, ii-multi-string inverters kunye ne-component inverters. Ngoku siza kuhlalutya usetyenziso lwee-inverters ezininzi.
Iziguquli ezisembindini zisetyenziswa ngokubanzi kwiinkqubo ezinezikhululo zamandla ephotovoltaic ezikhulu (》10kW). Iintambo ezininzi ze-photovoltaic ezihambelanayo zixhunyiwe kwigalelo le-DC ye-inverter efanayo ephakathi. Ngokuqhelekileyo, iimodyuli zamandla e-IGBT zesigaba sesithathu zisetyenziselwa amandla aphezulu. Amandla asezantsi asebenzisa i-transistors ye-field-effect kunye nomlawuli wokuguqula i-DSP ukuphucula umgangatho wamandla ombane avelisiweyo, okwenza ukuba asondele kakhulu kwi-sine wave current. Eyona nto inkulu ngamandla aphezulu kunye neendleko eziphantsi zenkqubo. Nangona kunjalo, ichaphazeleka ngokuhambelana neentambo ze-photovoltaic kunye ne-shading partial, okubangelwa ukusebenza kakuhle kunye nomthamo wamandla wenkqubo yonke ye-photovoltaic. Ngexesha elifanayo, ukuthembeka kokuveliswa kwamandla kwenkqubo yonke ye-photovoltaic kuchaphazelekayo yimeko engasebenzi kakuhle yeqela leyunithi ye-photovoltaic. Isalathiso samva nje sophando kusetyenziso lolawulo lokumodareyitha iVector yendawo kunye nophuhliso loqhagamshelo olutsha lwe-inverter topology ukufumana ukusebenza kakuhle okuphezulu phantsi kweemeko zomthwalo ongaphelelanga.
Kwi-inverter ye-SolarMax esembindini, unokuqhoboshela i-photovoltaic array interface ibhokisi ukujonga umtya ngamnye we-photovoltaic windsurfing. Ukuba enye yeentambo ayisebenzi kakuhle, inkqubo iya kudlulisela olu lwazi kumlawuli okude Ngexesha elifanayo, le ntambo inokumiswa ngokulawula okude, ukwenzela ukuba ukungaphumeleli kwentambo yeentambo ze-photovoltaic akuyi kunciphisa kwaye kuthintele umsebenzi kunye nokuveliswa kwamandla kuyo yonke inkqubo ye-photovoltaic.
Ii-inverters zentambo ziye zaba zezona zidumileyo kwii-inverters kwiimarike zamazwe ngamazwe. I-inverter yomtya isekelwe kwingcamango yemodyuli. Intambo nganye ye-photovoltaic (1kW-5kW) idlula kwi-inverter, inamandla aphezulu okulandelela i-peak ekupheleni kwe-DC, kwaye idibaniswe ngokuhambelanayo ekupheleni kwe-AC. Uninzi lwezityalo zamandla e-photovoltaic ezinkulu zisebenzisa ii-inverters zentambo. Inzuzo kukuba ayichatshazelwa ngumahluko wemodyuli kunye nezithunzi phakathi kweentambo, kwaye ngexesha elifanayo linciphisa indawo efanelekileyo yokusebenza yeemodyuli ze-photovoltaic.
Ukungafani ne-inverter, ngaloo ndlela ukwandisa umthamo wokuvelisa amandla. Ezi zibonelelo zobugcisa azigcini nje ukunciphisa iindleko zenkqubo, kodwa zandisa ukuthembeka kwenkqubo. Ngelo xesha, ingcamango ye "master-slave" ifakwe phakathi kweentambo, ukwenzela ukuba xa umtya omnye wamandla ombane ungenakukwazi ukwenza i-inverter enye isebenze kwinkqubo, iiseti ezininzi zeentambo ze-photovoltaic zidibene kunye, kwaye enye okanye ezininzi zazo zinokusebenza. , Ukuze kuveliswe umbane omninzi. Ingcamango yamva nje kukuba ii-inverters ezininzi zenza "iqela" lokuthatha indawo ye-"master-slave" ingcamango, eyenza ukuthembeka kwenkqubo kuqhubele phambili. Okwangoku, ii-inverters zentambo ezingenakuguqulwa zikhokele.
I-Multi-string inverter ithatha inzuzo ye-centralized inverter kunye ne-string inverter, igwema iintsilelo zayo, kwaye ingasetyenziselwa kwizikhululo zamandla ze-photovoltaic ze-kilowatts ezininzi. Kwi-multi-string inverter, ukulandelwa kwencopho yamandla ahlukeneyo kunye ne-DC-to-DC converters zibandakanyiwe. Ezi DCs ziguqulwa zibe ngamandla e-AC yi-inverter eqhelekileyo ye-DC-to-AC kwaye iqhagamshelwe kwigridi. Amaxabiso ahlukeneyo alinganisiweyo eentambo ze-photovoltaic (ezinje: amandla alinganisiweyo ahlukeneyo, inani elahlukileyo lamacandelo kumtya ngamnye, abavelisi abahlukeneyo bamacandelo, njl.njl.), iimodyuli zefotovoltaic zobukhulu obahlukeneyo okanye itekhnoloji eyahlukeneyo, kunye neentambo zeendlela ezahlukeneyo (ezifana ne : EMpuma, eMzantsi naseNtshona), ii-angles ezahlukeneyo zokuthambekela okanye izithunzi, zinokuqhagamshelwa kwi-inverter eqhelekileyo, kwaye umtya ngamnye usebenza kumandla abo aphezulu. incopho.
Ngexesha elifanayo, ubude bekhebula le-DC liyancitshiswa, umphumo wesithunzi phakathi kweentambo kunye nokulahlekelwa okubangelwa ukuhlukana phakathi kweentambo ziyancipha.
I-inverter yecandelo kukuxhuma icandelo ngalinye le-photovoltaic kwi-inverter, kwaye icandelo ngalinye linomlinganiselo ohlukeneyo wokulandelela amandla aphezulu, ukwenzela ukuba icandelo kunye ne-inverter zihambelane kangcono. Ngokuqhelekileyo isetyenziswe kwi-50W ukuya kwi-400W yezityalo zamandla e-photovoltaic, ukusebenza ngokupheleleyo kuphantsi kune-inverters zentambo. Ekubeni idibaniswe ngokufanayo kwi-AC, oku kwandisa ubunzima be-wiring kwicala le-AC kwaye kunzima ukuyigcina. Omnye umba ofuna ukusonjululwa yindlela yokudibanisa kwigridi ngokufanelekileyo. Indlela elula kukudibanisa ngokuthe ngqo kwigridi ngokusebenzisa i-socket ye-AC eqhelekileyo, enokunciphisa iindleko kunye nokufakwa kwezixhobo, kodwa kaninzi imigangatho yokhuseleko yegridi ayinakuyivumela. Ngokwenza oko, inkampani yamandla inokuchasa isixhobo sokuvelisa umbane ukuba siqhagamshelwe ngokuthe ngqo kwiisokethi eziqhelekileyo zabasebenzisi bezindlu eziqhelekileyo. Enye into enxulumene nokhuseleko kukuba ingaba i-transformer yokuzimela (i-frequency ephezulu okanye i-frequency ephantsi) iyafuneka, okanye i-inverter engena-transformer ivunyelwe. Okuinverterisetyenziswa kakhulu kwiindonga zamakhethini eglasi.
Ixesha lokuposa: Oct-29-2021
