Ilanga likhanya emhlanganweni we-semiconductor pn, kwakha umbhangqwana omusha we-elekroni-electron. Ngaphansi kwesenzo sensimu kagesi ye-PN Junction, umgodi ugeleza usuka esifundeni se-P uye esifundeni se-N, kanti i-elektroni igelezela esifundeni se-N. Lapho umjikelezo uxhumekile, kwakhiwa okwamanje. Leyo yindlela umuntu osebenza ngayo amangqamuzana elanga ayasebenza.
I-Solar Power Generation Kunezinhlobo ezimbili zokukhiqizwa kwamandla elanga, enye imodi yokuguqulwa kagesi okukhanyayo, enye iyindlela yokuguqulwa kagesi eqondile.
(1) Indlela yokuguqulwa kagesi okukhanyayo isebenzisa amandla afudumele akhiqizwe ngemisebe yelanga ukukhiqiza ugesi. Ngokuvamile, amandla okushisa amunwe aguqulwa abe ngumusi wokusebenza okuphakathi komqoqi welanga, bese kuqhutshwa i-turbine ye-steam iqhutshwa ukukhiqiza ugesi. Inqubo yangaphambili inqubo yokuguqulwa okukhanyayo; Inqubo yokugcina ingukushisa - inqubo yokuguqulwa kukagesi.
(2) Umphumela we-PhotoElectric usetshenziselwa ukuguqula amandla emisebe elanga ngqo kumandla kagesi. Idivaysi eyisisekelo yokuguqulwa kwe-PhotoElectric yiseli yelanga. I-Solar Cell iyithuluzi eliguqula ngokuqondile amandla okukhanya elanga libe namandla kagesi ngenxa ye-PhotogeNenation Volt Effect. Kuyi-semiconductor Photodiode. Lapho ilanga likhanya kwi-PhotoDiode, i-PhotoDiode izoguqula amandla okukhanya elanga ibe amandla kagesi futhi akhiqize okwamanje. Lapho amaseli amaningi exhunywe ochungechungeni noma ngokufana, uhlu lwesikwele lwamaseli elanga anamandla amakhulu okukhipha.
Njengamanje, i-Crystalline Silicon (kufaka phakathi i-polysilicon ne-monocrystalline silico) yizinto ezibaluleke kakhulu ze-Photovoltaic izinto, isabelo sayo semakethe singaphezu kwama-90%, futhi esikhathini esizayo isikhathi eside sisazoba yizinto ezinde kakhulu zamangqamuzana elanga.
Isikhathi eside, ubuchwepheshe bokukhiqiza bezinto zokwenziwa kwama-polysilicon bulawulwa ngamaqiniso ayi-10 ezinkampanini eziyi-7 emazweni ama-3, njenge-United States, eJapan naseJalimane, ekwakheni i-boopoly yezobuchwepheshe kanye nemakethe.
Isidingo sePolysilicon ikakhulu sivela kuma-semiconductor namaseli elanga. Ngokusho kwezidingo ezahlukene zokuhlanzeka, ihlukaniswe ngezinga le-elekthronikhi kanye nezinga lelanga. Phakathi kwazo, ama-polysilicon ebangeni le-elekthronikhi ama-55%, izinga le-solar level polysilicon ama-45%.
Ngokuthuthuka okusheshayo komkhakha we-Photovoltaic, isidingo sePolysilicon kuma-solar cell sikhula ngokushesha kunokuthuthukiswa kwe-semiconductor polysilicon, futhi kulindeleke ukuthi isidingo se-polysilicon selanga sizodlula lokho nge-polysilicon ebangeni le-2008.
Ngo-1994, ukukhiqizwa okuphelele kwamangqamuzana elanga emhlabeni kwakungama-69mw kuphela, kodwa ngo-2004 kwakusondele ku-1200mw, kukhula okungama-17 eminyakeni eyi-10 kuphela. Ochwepheshe babikezela ukuthi imboni ye-solar photovoltaic izodlula amandla enuzi njengenye yemithombo yamandla ebaluleke kakhulu engxenyeni yokuqala yekhulu lama-21.
Isikhathi sePosi: Sep-15-2022