Lilemong tsa morao tjena, theknoloji ea ho hlahisa matla a photovoltaic e tsoetse pele ka ho tlōla le meeli, 'me matla a kentsoeng a eketsehile ka potlako. Leha ho le joalo, ho hlahisa matla a photovoltaic ho na le mefokolo e kang ea nakoana le e sa laoleheng. Pele e sebetsana le eona, ho fihlella ka ho toba ka mokhoa o moholo oa marang-rang ho tla tlisa tšusumetso e kholo le ho ama ts'ebetso e tsitsitseng ea marang-rang a matla. . Ho eketsa li-link tsa polokelo ea matla ho ka etsa hore motlakase oa photovoltaic o fane ka mokhoa o tsitsitseng le o tsitsitseng ho marang-rang, 'me phihlelo e kholo ea marang-rang e ke ke ea ama botsitso ba marang-rang. Le polokelo ea matla ea photovoltaic +, tsamaiso e na le mefuta e mengata ea lisebelisoa.
Sistimi ea polokelo ea photovoltaic, ho kenyelletsa le li-module tsa letsatsi, balaoli,li-inverters, dibetri, meroalo le lisebelisoa tse ling. Hona joale, ho na le litsela tse ngata tsa theknoloji, empa matla a lokela ho bokelloa ka nako e itseng. Hajoale, ho na le li-topology tse peli: DC coupling "DC Coupling" le AC coupling "AC Coupling".
1 DC e kopantsoe
Joalokaha ho bontšitsoe setšoantšong se ka tlase, matla a DC a hlahisoang ke mochine oa photovoltaic a bolokiloe ka har'a betri pakete ka molaoli, 'me grid e ka boela ea tjhaja betri ka mochine oa bidirectional DC-AC. Sebaka sa ho bokella matla se pheletsong ea betri ea DC.
Molao-motheo o sebetsang oa ho kopanya ha DC: ha tsamaiso ea photovoltaic e sebetsa, molaoli oa MPPT o sebelisetsoa ho lefisa betri; ha mojaro oa motlakase o hlokahala, betri e tla lokolla matla, 'me hona joale e khethoa ke mojaro. Sistimi ea polokelo ea matla e hokahane le marang-rang. Haeba mojaro o le monyenyane 'me betri e qosoa ka ho feletseng, tsamaiso ea photovoltaic e ka fana ka matla ho marang-rang. Ha matla a mojaro a le moholo ho feta matla a PV, marang-rang le PV li ka fana ka matla ho mojaro ka nako e le 'ngoe. Hobane tlhahiso ea matla a photovoltaic le matla a matla a mojaro ha a tsitsa, hoa hlokahala ho itšetleha ka betri ho leka-lekanya matla a tsamaiso.
2 AC e kopantsoe
Joalokaha ho bontšitsoe setšoantšong se ka tlase, motlakase o tobileng o hlahisoang ke mochine oa photovoltaic o fetoloa ho fetoha hona joale ka inverter, 'me o feptjoa ka ho toba ho mojaro kapa o romelloa ho marang-rang. Gridi e ka boela ea tjhaja betri ka sesebelisoa sa bidirectional DC-AC bidirectional converter. Sebaka sa ho bokella matla se pheletsong ea puisano.
Molao-motheo o sebetsang oa ho kopanya AC: o kenyelletsa tsamaiso ea motlakase oa photovoltaic le tsamaiso ea matla a betri. Sistimi ea photovoltaic e na le li-photovoltaic arrays le li-inverters tse amanang le grid; Sisteme ea betri e na le lipakete tsa betri le li-inverters tse fapaneng. Litsamaiso tsena tse peli li ka sebetsa ka boikemelo ntle le ho kena-kenana, kapa li ka arohanngoa le marang-rang a maholo a matla ho theha tsamaiso ea micro-grid.
Bobeli ba DC coupling le AC coupling hajoale ke litharollo tse holileng, e 'ngoe le e 'ngoe e na le melemo le mefokolo ea eona. Ho ea ka likopo tse fapaneng, khetha tharollo e loketseng ka ho fetisisa. Se latelang ke papiso ea litharollo tse peli.
1 papiso ea litšenyehelo
DC coupling e kenyelletsa controller, bidirectional inverter le switch switch, coupling ea AC e kenyelletsa inverter e hoketsoeng ke grid, inverter ea bidirectional le khabinete ea kabo ea matla. Ho ea ka pono ea litšenyehelo, molaoli o theko e tlaase ho feta inverter e amanang le grid. Phetiso ea phetisetso e boetse e theko e tlase ho feta khabinete ea kabo ea matla. Morero oa ho kopanya oa DC o ka boela oa etsoa mochine o kopantsoeng oa taolo le inverter, o ka bolokang litšenyehelo tsa thepa le litšenyehelo tsa ho kenya. Ka hona, litšenyehelo tsa leano la ho kopanya DC li tlase hanyane ho feta tsa AC coupling scheme.
2 Papiso ea tšebeliso
Sistimi ea ho kopanya ea DC, molaoli, betri le inverter li hokahane ka letoto, khokahano e batla e le haufi, empa ho feto-fetoha ha maemo ho fosahetse. Lenaneong la ho kopanya la AC, inverter e kopantsoeng ke grid, betri ea polokelo le converter ea bidirectional e tšoana, khokahanyo ha e thata, 'me ho feto-fetoha ha maemo ho molemo. Ka mohlala, tsamaisong ea photovoltaic e seng e kentsoe, hoa hlokahala ho kenya mokhoa oa ho boloka matla, ho molemo ho sebelisa coupling ea AC, hafeela betri le converter ea bidirectional e kenngoa, e ke ke ea ama tsamaiso ea pele ea photovoltaic, le mokhoa oa ho boloka matla Ha e le hantle, moqapi ha o na kamano e tobileng le tsamaiso ea photovoltaic 'me e ka khethoa ho ea ka litlhoko. Haeba e le sistimi e ncha e kentsoeng ea off-grid, li-photovoltaics, libeteri, le li-inverters li tlameha ho etsoa ho latela matla a mosebelisi le tšebeliso ea motlakase, 'me sistimi ea khokahanyo ea DC e loketse haholoanyane. Leha ho le joalo, matla a DC coupling system a batla a le manyane, hangata a ka tlase ho 500kW, mme ho molemo ho laola sistimi e kholo ka ho kopanya AC.
3 papiso e sebetsang hantle
Ho latela pono ea katleho ea tšebeliso ea photovoltaic, merero e 'meli e na le litšobotsi tsa eona. Haeba mosebelisi a jara ho feta mots'ehare le bosiu hanyane, ho molemo ho sebelisa coupling ea AC. Li-module tsa photovoltaic ka ho toba li fana ka matla ho mojaro ka mochine oa motlakase o kopantsoeng le gridi, 'me katleho e ka fihla Ho feta 96%. Haeba mojaro oa mosebelisi o batla o le monyane nakong ea mots'eare le bosiu bo bongata, mme motlakase oa motlakase oa photovoltaic o hloka ho bolokoa mots'ehare mme o sebelisoe bosiu, ho molemo ho sebelisa coupling ea DC. Mojule oa photovoltaic o boloka motlakase ho betri ka molaoli, 'me katleho e ka fihla ho feta 95%. Haeba e le AC coupling , Photovoltaics e tlameha ho qala ho fetoloa matla a AC ka inverter, ebe e fetoloa matla a DC ka converter ea bidirectional, 'me katleho e tla theohela hoo e ka bang 90%.
'Mele oa AmennsolarN3Hx letoto la li-inverters tse arohanengts'ehetsa khokahano ea AC mme e etselitsoe ho ntlafatsa lisebelisoa tsa matla a letsatsi. Re amohela barekisi ba bangata ho ikopanya le rona ho khothaletseng lihlahisoa tsena tse nchafalitsoeng. Haeba u thahasella ho atolosa lihlahisoa tsa hau le ho fana ka li-inverters tsa boleng bo phahameng ho bareki ba hau, re u mema hore u sebelisane le rona 'me u rue molemo ho tloha theknoloji e tsoetseng pele le ho tšepahala ha letoto la N3Hx. Ikopanye le rona kajeno ho hlahloba monyetla ona o thabisang oa tšebelisano 'moho le kholo ea indasteri ea matla a ka nchafatsoang.
Nako ea poso: Feb-15-2023
