Umgomo wokukhiqizwa kwamandla e-solar photovoltaic ubuchwepheshe obuguqula ngqo amandla okukhanya abe amandla kagesi ngokusebenzisa umphumela we-photovoltaic we-semiconductor interface. Ingxenye ebalulekile yalobu buchwepheshe yiseli yelanga. Amaseli elanga apakishwa futhi avikelwe ngokulandelana ukuze akhe imoduli yeseli yelanga enkulu bese ehlanganiswa nesilawuli samandla noma okunye okunjalo ukuze kwakheke idivayisi yokukhiqizwa kwamandla e-photovoltaic. Yonke inqubo ibizwa ngokuthi uhlelo lokukhiqizwa kwamandla e-photovoltaic. Uhlelo lokukhiqizwa kwamandla e-photovoltaic luqukethe ama-arrays amaseli elanga, amaphakethe ebhethri, abalawuli bokushaja nokukhipha, ama-inverter e-solar photovoltaic, amabhokisi okuhlanganisa kanye neminye imishini.
Kungani usebenzisa i-inverter ohlelweni lokuphehla amandla lwe-solar photovoltaic?
I-inverter iyithuluzi eliguqula ugesi oqondile ube ugesi oshintshashintshayo. Amaseli elanga azokhiqiza ugesi we-DC ekukhanyeni kwelanga, kanti ugesi we-DC ogcinwe ebhethri nawo ungamandla we-DC. Kodwa-ke, uhlelo lokunikezwa kukagesi lwe-DC lunemikhawulo emikhulu. Imithwalo ye-AC efana nezibani ze-fluorescent, ama-TV, iziqandisi, kanye namafeni kagesi empilweni yansuku zonke ayikwazi ukunikezwa amandla ugesi we-DC. Ukuze ukukhiqizwa kukagesi we-photovoltaic kusetshenziswe kabanzi empilweni yethu yansuku zonke, ama-inverter angaguqula ugesi oqondile ube ugesi oshintshashintshayo abalulekile.
Njengengxenye ebalulekile yokukhiqizwa kwamandla e-photovoltaic, i-inverter ye-photovoltaic isetshenziswa kakhulu ukuguqula ugesi oqondile okhiqizwa amamojula e-photovoltaic abe ugesi oshintshanayo. I-inverter ayinawo nje umsebenzi wokuguqulwa kwe-DC-AC, kodwa futhi inomsebenzi wokukhulisa ukusebenza kweseli yelanga kanye nomsebenzi wokuvikela amaphutha ohlelweni. Okulandelayo yisingeniso esifushane semisebenzi yokusebenza okuzenzakalelayo kanye nokuvala kwe-inverter ye-photovoltaic kanye nomsebenzi wokulawula ukulandelela amandla aphezulu.
1. Umsebenzi wokulawula ukulandelela amandla aphezulu
Umphumela we-solar cell module uyahlukahluka ngokuya ngamandla emisebe yelanga kanye nokushisa kwe-solar cell module uqobo (ukushisa kwe-chip). Ngaphezu kwalokho, njengoba i-solar cell module inesici sokuthi i-voltage iyancipha njengoba ugesi ukhuphuka, kukhona indawo yokusebenza efanele lapho amandla aphezulu angatholakala khona. Amandla emisebe yelanga ayashintsha, futhi kusobala ukuthi indawo yokusebenza efanele nayo iyashintsha. Ngokuphathelene nalezi zinguquko, indawo yokusebenza ye-solar cell module ihlala isendaweni yamandla aphezulu, futhi uhlelo luhlala luthola amandla aphezulu avela ku-solar cell module. Lokhu kulawula ukulawula amandla aphezulu okulandelela. Isici esikhulu sama-inverters ezinhlelo zamandla elanga ukuthi afaka umsebenzi wokulandelela amaphuzu amandla aphezulu (MPPT).
2. Ukusebenza okuzenzakalelayo kanye nomsebenzi wokumisa
Ngemva kokuphuma kwelanga ekuseni, ukuqina kwemisebe yelanga kuyanda kancane kancane, kanti nokukhishwa kweseli yelanga nakho kuyanda. Lapho amandla okukhipha adingwa yi-inverter efinyelelwa, i-inverter iqala ukusebenza ngokuzenzakalelayo. Ngemva kokungena ekusebenzeni, i-inverter izoqapha ukuphuma kwemoduli yeseli yelanga ngaso sonke isikhathi. Uma nje amandla okukhipha emoduli yeseli yelanga emakhulu kunamandla okukhipha adingwa yi-inverter ukuze isebenze, i-inverter izoqhubeka nokusebenza; izoma kuze kube sekushoneni kwelanga, noma ngabe kunamafu futhi lina. I-inverter nayo ingasebenza. Lapho ukuphuma kwemoduli yeseli yelanga kuba kuncane futhi ukuphuma kwe-inverter kuseduze no-0, i-inverter izokwakha isimo sokulinda.
Ngaphezu kwemisebenzi emibili echazwe ngenhla, i-inverter ye-photovoltaic inomsebenzi wokuvimbela ukusebenza okuzimele (kohlelo oluxhunywe kugridi), umsebenzi wokulungisa i-voltage okuzenzakalelayo (kohlelo oluxhunywe kugridi), umsebenzi wokuthola i-DC (kohlelo oluxhunywe kugridi), kanye nomsebenzi wokuthola i-DC grounding (kohlelo oluxhunywe kugridi) kanye neminye imisebenzi. Ohlelweni lokukhiqiza amandla elanga, ukusebenza kahle kwe-inverter kuyisici esibalulekile esinquma umthamo weseli yelanga kanye nomthamo webhethri.
Isikhathi sokuthunyelwe: Ephreli-01-2023
