Lub hnub ci ntsa iab ntawm lub semiconductor PN kev sib tshuam, tsim ib lub qhov tshiab-electron khub.Nyob rau hauv qhov kev txiav txim ntawm hluav taws xob teb ntawm PN kev sib tshuam, lub qhov ntws los ntawm thaj av P mus rau thaj tsam N, thiab cov hluav taws xob ntws los ntawm thaj tsam N mus rau thaj tsam P.Thaum lub voj voog txuas nrog, qhov tam sim no raug tsim.Qhov ntawd yog li cas photoelectric effect solar cells ua haujlwm.
Hnub ci tsim hluav taws xob Muaj ob hom kev tsim hluav taws xob hnub ci, ib qho yog lub teeb-kub-hluav taws xob hloov dua siab tshiab, lwm yam yog lub teeb hluav taws xob ncaj qha hloov pauv hom.
(1) Txoj kev hloov lub teeb-kub-tsim hluav taws xob siv cov thermal zog tsim los ntawm hnub ci hluav taws xob los tsim hluav taws xob.Feem ntau, lub zog nqus hluav taws xob tau hloov mus rau hauv chav ua haujlwm nruab nrab los ntawm lub hnub ci sau, thiab tom qab ntawd cov chav turbine tau tsav los tsim hluav taws xob.Cov txheej txheem yav dhau los yog lub teeb-kub hloov pauv txheej txheem;Cov txheej txheem tom kawg yog cov txheej txheem hloov hluav taws xob - hluav taws xob.
(2) Cov nyhuv photoelectric yog siv los hloov lub hnub ci hluav taws xob ncaj qha rau hauv hluav taws xob.Cov cuab yeej yooj yim ntawm kev hloov pauv photoelectric yog lub hnub ci cell.Hnub ci cell yog ib qho cuab yeej uas ncaj qha hloov lub hnub ci lub zog rau hauv hluav taws xob vim yog photogeneration volt nyhuv.Nws yog semiconductor photodiode.Thaum lub hnub ci rau ntawm photodiode, lub photodiode yuav tig lub hnub ci lub zog rau hauv lub zog hluav taws xob thiab tsim tam sim no.Thaum muaj ntau lub hlwb txuas nrog hauv series lossis nyob rau hauv tib lub sijhawm, ib qho square array ntawm lub hnub ci hlwb nrog lub zog tso zis loj tuaj yeem tsim tau.
Tam sim no, crystalline silicon (xws li polysilicon thiab monocrystalline silicon) yog cov ntaub ntawv tseem ceeb tshaj plaws photovoltaic, nws txoj kev lag luam feem ntau yog ntau dua 90%, thiab yav tom ntej rau lub sijhawm ntev tseem yuav yog cov khoom siv tseem ceeb ntawm lub hnub ci.
Tau ntev, LUB tshuab tsim khoom ntawm cov khoom siv polysilicon tau raug tswj los ntawm 10 lub tuam txhab ntawm 7 lub tuam txhab hauv 3 lub teb chaws, xws li Tebchaws Meskas, Nyiv thiab Lub Tebchaws Yelemees, tsim kev lag luam thaiv thiab kev lag luam monopoly.
Polysilicon xav tau tsuas yog los ntawm semiconductors thiab hnub ci hlwb.Raws li cov kev cai purity sib txawv, muab faib ua qib hluav taws xob thiab qib hnub ci.Ntawm lawv, hluav taws xob-qib polysilicon suav txog li 55%, hnub ci qib polysilicon suav txog 45%.
Nrog rau txoj kev loj hlob sai ntawm PHOTOVOLTAIC kev lag luam, qhov kev thov rau polysilicon nyob rau hauv lub hnub ci hlwb yog loj hlob sai tshaj li kev loj hlob ntawm semiconductor polysilicon, thiab nws cia siab tias qhov kev thov rau hnub ci polysilicon yuav ntau tshaj li ntawm hluav taws xob-qib polysilicon los ntawm 2008.
Xyoo 1994, tag nrho cov khoom siv hnub ci hauv ntiaj teb tsuas yog 69MW, tab sis xyoo 2004 nws tau ze rau 1200MW, nce 17 npaug hauv tsuas yog 10 xyoo.Cov kws tshaj lij kwv yees tias kev lag luam hnub ci photovoltaic yuav dhau lub zog hluav taws xob nuclear uas yog ib qho tseem ceeb tshaj plaws ntawm lub zog hluav taws xob hauv thawj ib nrab ntawm lub xyoo pua 21st.
Post lub sij hawm: Sep-15-2022