Umgaqo wokuveliswa kwamandla e-solar photovoltaic yiteknoloji eguqula ngokuthe ngqo amandla okukhanya abe ngamandla ombane ngokusebenzisa isiphumo se-photovoltaic se-semiconductor interface. Icandelo eliphambili lale teknoloji yiseli yelanga. Iiseli zelanga zipakishwa kwaye zikhuselwe ngochungechunge ukwenza imodyuli yeseli yelanga enkulu kwaye emva koko zidityaniswe nomlawuli wamandla okanye okufanayo ukwenza isixhobo sokuveliswa kwamandla e-photovoltaic. Yonke le nkqubo ibizwa ngokuba yinkqubo yokuveliswa kwamandla e-photovoltaic. Inkqubo yokuveliswa kwamandla e-photovoltaic iqulathe ii-arrays zeeseli zelanga, iipakethi zebhetri, abalawuli bokutshaja nokukhupha, ii-inverters ze-solar photovoltaic, iibhokisi zokudibanisa kunye nezinye izixhobo.
Kutheni usebenzisa i-inverter kwinkqubo yokuvelisa umbane ye-photovoltaic yelanga?
I-inverter sisixhobo esiguqula umbane ngqo ube ngumbane otshintshanayo. Iiseli zelanga ziya kuvelisa umbane we-DC elangeni, kwaye umbane we-DC ogcinwe kwibhetri nawo ngumbane we-DC. Nangona kunjalo, inkqubo yombane we-DC inemida emikhulu. Imithwalo ye-AC efana nezibane ze-fluorescent, iiTV, iifriji, kunye neefeni zombane kubomi bemihla ngemihla ayinakusetyenziswa ngumbane we-DC. Ukuze ukuveliswa kombane we-photovoltaic kusetyenziswe kakhulu kubomi bethu bemihla ngemihla, ii-inverters ezinokuguqula umbane ngqo ube ngumbane otshintshanayo azinamsebenzi.
Njengenxalenye ebalulekileyo yokuveliswa kwamandla e-photovoltaic, i-inverter ye-photovoltaic isetyenziselwa kakhulu ukuguqula umbane othe ngqo oveliswa ziimodyuli ze-photovoltaic ube ngumbane otshintshanayo. I-inverter ayinayo nje kuphela umsebenzi wokuguqulwa kwe-DC-AC, kodwa ikwanomsebenzi wokwandisa ukusebenza kweseli yelanga kunye nomsebenzi wokukhusela iimpazamo zenkqubo. Oku kulandelayo sisingeniso esifutshane kwimisebenzi yokusebenza ngokuzenzekelayo kunye nokuvala kwe-inverter ye-photovoltaic kunye nomsebenzi wolawulo lokulandelela amandla aphezulu.
1. Umsebenzi wolawulo lokulandelela amandla aphezulu
Imveliso yemodyuli yeseli yelanga iyahluka ngokwengxinano yemitha yelanga kunye nobushushu bemodyuli yeseli yelanga ngokwayo (ubushushu betship). Ukongeza, ekubeni imodyuli yeseli yelanga inophawu lokuba i-voltage iyancipha njengoko umsinga unyuka, kukho indawo yokusebenza efanelekileyo apho amandla aphezulu anokufunyanwa khona. Ubungakanani bemitha yelanga buyatshintsha, kwaye ngokucacileyo indawo yokusebenza efanelekileyo nayo iyatshintsha. Ngokuphathelele olu tshintsho, indawo yokusebenza yemodyuli yeseli yelanga ihlala ikwindawo yamandla aphezulu, kwaye inkqubo ihlala ifumana amandla aphezulu avela kwimodyuli yeseli yelanga. Olu lawulo lulawulo lokulandelela amandla aphezulu. Uphawu olukhulu lwee-inverters kwiinkqubo zamandla elanga kukuba ziquka umsebenzi wokulandelela indawo yamandla aphezulu (MPPT).
2. Ukusebenza ngokuzenzekelayo kunye nomsebenzi wokumisa
Emva kokuphuma kwelanga kusasa, amandla emitha yelanga ayanda kancinci kancinci, kwaye nemveliso yeseli yelanga nayo iyanda. Xa amandla okukhupha afunekayo yi-inverter efikelelwa, i-inverter iqala ukusebenza ngokuzenzekelayo. Emva kokuqalisa ukusebenza, i-inverter iya kujonga imveliso yemodyuli yeseli yelanga ngalo lonke ixesha. Logama nje amandla okukhupha emodyuli yeseli yelanga engaphezulu kwamandla okukhupha afunekayo ukuze i-inverter isebenze, i-inverter iya kuqhubeka isebenza; iya kuma kude kutshone ilanga, nokuba kunamafu kwaye kunemvula. I-inverter nayo ingasebenza. Xa imveliso yemodyuli yeseli yelanga incipha kwaye imveliso ye-inverter isondele kwi-0, i-inverter iya kwenza imeko yokulinda.
Ukongeza kwimisebenzi emibini echazwe apha ngasentla, i-inverter ye-photovoltaic ikwanomsebenzi wokuthintela ukusebenza ngokuzimeleyo (kwinkqubo eqhagamshelwe kwigridi), umsebenzi wokulungisa i-voltage ngokuzenzekelayo (kwinkqubo eqhagamshelwe kwigridi), umsebenzi wokufumanisa i-DC (kwinkqubo eqhagamshelwe kwigridi), kunye nomsebenzi wokufumanisa umhlaba we-DC (kwiinkqubo eziqhagamshelwe kwigridi) kunye neminye imisebenzi. Kwinkqubo yokuvelisa umbane welanga, ukusebenza kakuhle kwe-inverter yinto ebalulekileyo emisela umthamo weseli yelanga kunye nomthamo webhetri.
Ixesha lokuthumela: Epreli-01-2023
