Ha beng ba mapolasi a letsatsi ba ntse ba leka ho ntlafatsa ts'ebetso le katleho ea ts'ebetso ea bona, likhetho tsa wiring tsa DC li ke ke tsa hlokomolohuoa.Ka mor'a tlhaloso ea litekanyetso tsa IEC le ho ela hloko lintlha tse kang polokeho, phaello ea mahlakoreng a mabeli, matla a ho jara cable, tahlehelo ea cable le ho theoha ha motlakase, beng ba limela ba ka tseba mohala o nepahetseng ho netefatsa ts'ebetso e sireletsehileng le e tsitsitseng nakong eohle ea bophelo ba photovoltaic. tsamaiso.
Ts'ebetso ea li-module tsa letsatsi tšimong e ameha haholo ke maemo a tikoloho.Potoloho e khuts'oane ea hajoale letlapeng la data la module ea PV e ipapisitse le maemo a tloaelehileng a tlhahlobo ho kenyelletsa le irradiance ea 1kw / m2, boleng ba moea oa spectral ba 1.5, le mocheso oa sele oa 25 c.Letlapa la data hajoale le lona ha le nahane ka morao-rao oa li-module tse nang le mahlakore a mabeli, kahoo ntlafatso ea leru le lintlha tse ling;Mocheso;Peak irradiance;Sebaka se ka morao sa overirradiance se tsamaisoang ke albedo se ama haholo nako ea sebele ea potoloho e khutšoanyane ea li-module tsa photovoltaic.
Ho khetha likhetho tsa cable bakeng sa merero ea PV, haholo merero e nang le mahlakore a mabeli, ho kenyelletsa ho nahana ka mefuta e mengata.
Khetha thapo e nepahetseng
Lithapo tsa Dc ke bophelo ba litsamaiso tsa PV hobane li hokahanya li-module ho lebokose la kopano le inverter.
Mong'a semela o tlameha ho etsa bonnete ba hore boholo ba mohala o khethoa ka hloko ho ea ka motlakase le motlakase oa tsamaiso ea photovoltaic.Lithapo tse sebelisetsoang ho hokahanya karolo ea DC ea litsamaiso tsa PV tse hokahantsoeng le grid le tsona li hloka ho mamella maemo a ka bang matla a tikoloho, motlakase le maemo a hajoale.Sena se kenyelletsa phello ea ho futhumatsa ea phaello ea hona joale le ea letsatsi, haholo-holo haeba e kentsoe haufi le mojule.
Mona ke lintlha tse ling tsa bohlokoa.
Settlement wiring moralo
Ka moralo oa tsamaiso ea PV, ho nahanela litšenyehelo tsa nako e khutšoanyane ho ka lebisa ho khethoeng ha thepa e fosahetseng le ho lebisa litabeng tsa nako e telele tsa ts'ireletso le ts'ebetso, ho kenyelletsa le liphello tse kotsi tse kang mollo.Lintlha tse latelang li hloka ho hlahlojoa ka hloko ho fihlela maemo a ts'ireletso le boleng ba naha:
Meeli ea ho theoha ha motlakase: Litahlehelo tsa thapo ea letsatsi ea PV li tlameha ho fokotsoa, ho kenyeletsoa tahlehelo ea DC ka har'a khoele ea solar panel le tahlehelo ea AC ho tlhahiso ea inverter.Tsela e 'ngoe ea ho fokotsa tahlehelo ena ke ho fokotsa ho theoha ha motlakase ho cable.Ho theoha ha motlakase oa DC hangata ho lokela ho ba ka tlase ho 1% mme eseng ho feta 2%.Marotholi a phahameng a matla a DC a boetse a eketsa phallo ea motlakase ea likhoele tsa PV tse hokahaneng le sistimi e ts'oanang ea "power point tracking" (MPPT), e bakang tahlehelo e kholo ea ho se tsamaisane.
Tahlehelo ea Cable: Ho netefatsa tlhahiso ea matla, ho khothaletsoa hore tahlehelo ea thapo ea thapo eohle e tlase-tlase (ho tloha ho module ho ea ho transformer) e se ke ea feta 2%, hantle 1.5%.
Bokhoni ba ho jara hona joale: Lintho tse senyang tsa thapo, joalo ka mokhoa oa ho beha thapo, ho phahama ha mocheso, sebaka sa ho beha sebaka, le palo ea likhoele tse bapileng, li tla fokotsa matla a ho tsamaisa mohala oa hajoale.
Tekanyetso ea IEC ea mahlakore a mabeli
Litekanyetso li bohlokoa ho netefatsa ho ts'epahala, polokeho le boleng ba litsamaiso tsa photovoltaic, ho kenyelletsa le wiring.Lefatšeng ka bophara, ho na le litekanyetso tse 'maloa tse amoheloang tsa tšebeliso ea likhoele tsa DC.Sete e felletseng ka ho fetesisa ke maemo a IEC.
IEC 62548 e fana ka litlhoko tsa moralo bakeng sa li-photovoltaic arrays, ho kenyeletsoa mehala ea DC array, lisebelisoa tsa ts'ireletso ea motlakase, li-switches le litlhoko tsa motheo.Moralo oa morao-rao oa IEC 62548 o totobatsa mokhoa oa hajoale oa ho bala oa li-module tsa mahlakore a mabeli.IEC 61215: 2021 E fana ka litlhaloso le litlhoko tsa tlhahlobo bakeng sa li-module tsa photovoltaic tse mahlakoreng a mabeli.Maemo a teko ea mahlaseli a letsatsi a likarolo tse peli tse mahlakoreng a mabeli a hlahisoa.BNPI (lehlakoreng le habeli la nameplate irradiance): Karolo e ka pele ea mojule oa PV e fumana khanya ea letsatsi ea 1 kW / m2, 'me ka morao e fumana 135 W / m2;BSI(Mahlakore a mabeli a khatello ea maikutlo), moo mojule oa PV o amohelang khanya ea letsatsi ea 1 kW/m2 ka pele le 300 W/m2 ka morao.
Tšireletso e fetelletseng
Sesebelisoa sa ts'ireletso sa overcurrent se sebelisetsoa ho thibela likotsi tse ka bakoang ke ho tlōlisa, nako e khutšoanyane, kapa phoso ea fatše.Lisebelisoa tse atileng haholo tsa ts'ireletso ea overcurrent ke li-circuit breaker le fuse.
Sesebelisoa sa ts'ireletso sa overcurrent se tla khaola potoloho haeba motlakase o ka morao o feta boleng ba ts'ireletso ea hona joale, kahoo motlakase o tsoelang pele le oa morao o phallang ka mohala oa DC o ke ke oa hlola o e-ba holimo ho feta tekanyo e lekantsoeng ea sesebelisoa.Bokhoni ba ho jara ba thapo ea DC bo lokela ho lekana le lebelo le lekantsoeng la sesebelisoa sa ts'ireletso sa overcurrent.
Nako ea poso: Dec-22-2022