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Ke hobane'ng ha motlakase oa photovoltaic o ka ba boemong bo ka sehloohong ho fehlang matla a matla a tsosolositsoeng?

  • litaba2021-04-16
  • litaba

Bareki, liindasteri le mebuso kaofela ba nka mehato ea ho eketsa tšebeliso ea matla a tsosolositsoeng.Sena se sutumelletsa phepelo ea motlakase le sistimi ea kabo ho tloha moahong o bohareng oa setsi le sebui ho ea ho fehla le tšebeliso ea motlakase sebakeng sa marang-rang, le phepelo e tsitsitseng le tlhokeho ka khokahano ea marang-rang e bohlale.

Ho ea ka tlaleho ea peterole ea International Energy Agency's (IEA) ea October 2019,ka 2024, tlhahiso ea matla a ka nchafatsoang e tla eketseha ka 50%.

Sena se bolela hore matla a lefats'e a ho hlahisa matla a ka nchafatsoang a tla eketseha ka 1200GW, e lekanang le bokhoni ba hona joale bo kentsoeng United States.Tlaleho e bolela esale pele hore 60% ea keketseho ea tlhahiso ea matla a tsosolositsoeng e tla ba ka mokhoa oa lisebelisoa tsa letsatsi la photovoltaic.

 

tlhahiso ea matla a tsosolositsoeng

 

Tlaleho e boetse e totobatsa bohlokoa ba mekhoa ea ho fehla motlakase oa photovoltaic e ajoang, ha bareki, mehaho ea khoebo le mehaho ea indasteri e qala ho hlahisa motlakase ka bobona.E bolela esale pele hore ka 2024, tlhahiso ea matla a photovoltaic e ajoang e tla feta habeli ho feta 500 GW.Sena sebolela seoajoa photovoltaic tlhahiso ea matla e tla ikarabella hoo e ka bang halofo ea kakaretso ea kholo ea matla a letsatsi a photovoltaic.

 

tlhahiso ea matla a photovoltaic

 

Molemo oa letsatsi

Ke hobane'ng ha tlhahiso ea matla a letsatsi a photovoltaic e nka boemo bo ka sehloohong ho holeng ha matla a matla a tsosolositsoeng?

Lebaka le leng le totobetseng ke hore letsatsi le re chabela kaofela, kahoo matla a lona a sebelisoa haholo.Sena se atametsa phehlo ya motlakase haufi le tshebediso ya motlakase mme se isa motlakase sebakeng se kantle ho marang-rang, se leng molemo haholo bakeng sa ho fokotsa tahlehelo ya kabo ya motlakase.

Lebaka le leng le totobetseng ke leoho na le matla a mangata a letsatsi.Ho na le liphapang tse ngata tse poteletseng tabeng ea ho bala hore na lefatše le fumana matla a makae a tsoang letsatsing.Molao oa letsoho ke hore karolelano ea bophahamo ba leoatle ke 1kW ka square meter ka letsatsi le chabileng, kapa ha lintlha tse kang potoloho ea mots'eare/bosiu, sekhutlo sa liketsahalo, le linako tsa selemo li nahanoa, karolelano ke sekweremithara ka 'ngoe ka letsatsi.M6kwh.

Lisele tsa letsatsi li sebelisa phello ea photoelectric ho fetola leseli la ketsahalo ho matla a motlakase ka mokhoa oa ho phalla ha photon.Lifoto li monngoa ke lisebelisoa tsa semiconductor tse kang silicon e nang le doped, 'me matla a tsona a hlasimolla lielektrone ho tsoa ho limolek'hule tsa tsona kapa tsa athomo.Li-electrone tsena li na le bolokolohi ba ho senya matla a feteletseng e le mocheso le ho khutlela ho orbit ea oona, kapa ho hasana ho electrode le ho fetoha karolo ea hona joale ho felisa phapang e ka bang teng eo e e bakang ho electrode.

Joalo ka lits'ebetso tsohle tsa ho fetolela matla, ha se matla ohle a kenang liseleng tsa letsatsi a hlahisoang ka mokhoa o ratoang oa matla a motlakase.Ebile, matla a matla a lisele tsa letsatsi tsa monocrystalline silicon a ntse a le lipakeng tsa 20% le 25% ka lilemo tse ngata.Leha ho le joalo, monyetla oa photovoltaics oa letsatsi o moholo hoo sehlopha sa lipatlisiso se 'nileng sa sebetsa ka lilemo tse mashome ho sebelisa mehaho le lisebelisoa tse ntseng li eketseha ho ntlafatsa bokhoni ba ho fetola lisele, joalokaha ho bontšitsoe setšoantšong sena ke NREL.

 

matla a ho fetola lisele tsa letsatsi

 

Ho fihlella matla a phahameng a matla a bontšitsoeng hangata ke litšenyehelo tsa ho sebelisa lisebelisoa tse ngata tse fapaneng le mekhoa e rarahaneng le e theko e boima ea tlhahiso.

Lisebelisoa tse ngata tsa letsatsi la photovoltaic li thehiloe mefuteng e sa tšoaneng ea silicon ea kristale kapa lifilimi tse tšesaane tsa silicon, cadmium telluride kapa koporo indium gallium selenide, ka katleho ea phetoho ea 20% ho 30%.Betri e hahiloe ka har'a mojule, 'me se kenyang se ka sebelisa li-modules tsena e le setsi sa motheo sa ho haha ​​​​sistimi ea ho hlahisa matla a letsatsi la photovoltaic.

 

Phephetso e sebetsang hantle ea matla

Phetoho ea photovoltaic e fetola li-kilowatts tsa ketsahalo ea matla a letsatsi sebakeng se seng le se seng sa mithara ea holim'a lefatše hore e be 200 ho isa ho 300 W ea matla a motlakase.Ha e le hantle, sena se tlas'a maemo a loketseng.Leha ho le joalo, katleho ea phetoho e ka fokotseha ka lebaka la mabaka a latelang: pula, lehloa le lerōle le behiloeng holim'a betri, tšusumetso ea botsofali ba thepa ea semiconductor, le moriti o eketsehileng ka lebaka la liphetoho tsa tikoloho tse kang ho hōla ha limela. kapa kaho ea meaho e mecha.

Ka hona, 'nete ke hore le hoja matla a letsatsi a sa lefelloe, tšebeliso ea matla a letsatsi ho hlahisa matla a motlakase a bohlokoa a hloka ho ntlafatsa ka hloko mohato o mong le o mong oa pokello, polokelo, le phetoho ea ho qetela ho matla a motlakase.E 'ngoe ea menyetla e meholo ka ho fetisisa ea ho ntlafatsa matla a matla ke moralo oamochini o kenya letsoho, e fetolang tlhahiso ea DC ea sehlopha sa letsatsi (kapa polokelo ea eona ea betri) hore e be AC ​​ea hona joale bakeng sa tšebeliso e tobileng kapa phetisetso ka marang-rang.

Inverter e fetola polarity ea DC e kenang hona joale ho etsa hore e be haufi le tlhahiso ea AC.Ha lebelo la ho fetoha le phahame, ho eketsa katleho ea phetoho.Sesebelisoa se bonolo se ka hlahisa tlhahiso ea square wave e ka khanna mojaro o hanyetsanang, empa ka li-harmonics, e tla senya lisebelisoa tse rarahaneng tsa elektronike tse tsamaisoang ke pure sine wave AC.Ka hona, moralo oa inverter o fetohile senotlolo sa ho leka-lekanya.Ka lehlakore le le leng,ho eketsa lebelo la ho fetoha ho ntlafatsa ts'ebetso ea matla, matla a ho sebetsa le ho hlahisa matla, ka hlakoreng le leng,ho fokotsa litšenyehelo tsa likarolo tse thusang tse sebelisoang ho thella leqhubu la lisekoere.

 

tlhahiso ea matla a photovoltaic

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