Eminyakeni yamuva, ubuchwepheshe of theimboni ye-photovoltaicithuthuke ngokushesha futhi ngokushesha.Amandla amamojula angashadile abe makhulu futhi aba makhulu, futhi i-current of string ibuye ibe nkulu futhi ibe mkhulu.Amanje amamojula anamandla aphezulu afinyelele ngaphezu kwe-17A.Ngokuphathelene nomklamo wesistimu, ukusetshenziswa kwezingxenye zamandla aphezulu kanye nesikhala esigciniwe esinengqondo kunganciphisa izindleko zokuqala zokutshala izimali kanye nezindleko zehora le-kilowatt zohlelo.Izindleko zezintambo ze-AC ne-DC ohlelweni azikho phansi.Kufanele kwenziwe kanjani ukuklama nokukhethwa ukuze kwehliswe izindleko?
1. Ukukhethwa kwezintambo ze-DC
Ikhebula le-DC lifakwe ngaphandle.Ngokuvamile kunconywa ukukhetha izintambo ezikhethekile ze-photovoltaic eziye zaxhunyaniswa ngemisebe.Ngemuva kokushiswa kwe-electron beam beam enamandla amakhulu, ukwakheka kwamangqamuzana ongqimba lwekhebula lokufakwa kwentambo kuyashintsha kusuka kumugqa kuya kusakhiwo samangqamuzana enethiwekhi enezinhlangothi ezintathu, futhi izinga lokumelana nezinga lokushisa liyakhuphuka lisuka ku-70°C elingaxhunywanga liye ku-90°C, 105°C. C, 125°C, 135°C, Ngisho kuze kufike ku-150°C, umthamo wamanje wokuthwala uphakeme ngo-15-50% kunalowo wezintambo zokucaciswa okufanayo.Ingamelana noshintsho olukhulu lokushisa kanye nokuguguleka kwamakhemikhali futhi ingasetshenziswa ngaphandle iminyaka engaphezu kwengu-25.Lapho ukhetha izintambo ze-DC, khetha imikhiqizo kubakhiqizi abajwayelekile abanezitifiketi ezifanele ukuze uqinisekise ukusetshenziswa kwangaphandle kwesikhathi eside.
Njengamanje, esetshenziswa kakhuluikhebula le-photovoltaic DCikhebula le-PV1-F1*4 4 imitha yesikwele.Kodwa-ke, ngokunyuka kwamanje kwamamojula we-photovoltaic kanye nokwanda kwamandla we-inverter eyodwa, ubude bekhebula le-DC buyakhula.6 square metres Ukusetshenziswa kwezintambo ze-DC nakho kuyanda.
Ngokwezincazelo ezifanele, ngokuvamile kunconywa ukuthi ukulahlekelwa kwe-photovoltaic DC akufanele kudlule i-2%.Sisebenzisa leli zinga ukuklama indlela yokukhetha izintambo ze-DC.Ukumelana komugqa wekhebula le-PV1-F1*4mm² DC ngu-4.6mΩ/imitha, futhi ukumelana komugqa wekhebula le-PV6mm² DC ngu-3.1 mΩ/imitha, kucatshangwa ukuthi imojula ye-DC yokusebenza kwamandla kagesi ngu-600V, u-2% ukwehla kokwehla kwamandla kagesi ngu-12V, uma kucatshangwa. ukuthi imojula yamanje ingu-13A, kusetshenziswa ikhebula elingu-4mm² DC, ibanga eliphakathi kwesiphetho esikude kakhulu semojuli nesiguquli esiguquguqukayo sinconywa ukuthi singadluli amamitha angu-120 (intambo eyodwa, (ngaphandle kwezigxobo ezinhle nezingezinhle), uma ibanga likhulu kunalokhu. ibanga, kunconywa ukuthi ukhethe ikhebula le-6mm² DC, kodwa kunconywa ukuthi ibanga eliphakathi kokuphela kwengxenye ne-inverter akufanele lidlule amamitha angu-170.
2. Ukubalwa kokulahlekelwa kwekhebula le-Photovoltaic
Ukuze kuncishiswe izindleko zesistimu, izingxenye kanyeama-inverters eziteshi zamandla e-photovoltaicawavamile ukulungiselelwa ngesilinganiso esingu-1:1.Esikhundleni salokho, ukulungisa okuthile okungaphezu kwamandla akhelwe ngokusekelwe ezimeni zokukhanyisa, izidingo zephrojekthi, njll. Isibonelo, kumojula engu-110KW kanye ne-inverter engu-100KW, kubalwe ngokusekelwe ezikhathini ezingu-1.1 zokumanyana kwe-AC ohlangothini lwe-inverter, umkhawulo wamanje ophumayo we-AC cishe 158A.Ikhebula le-AC lingakhethwa ngokusekelwe kumthamo omkhulu wamanje we-i-inverter.Ngoba kungakhathaliseki ukuthi zingaki izingxenye ezilungisiwe, i-AC input current ye-inverter ngeke idlule umthamo omkhulu wamanje we-inverter.
3. Amapharamitha okukhiphayo we-Inverter AC
Izintambo zethusi ze-AC ezivame ukusetshenziswa zezinhlelo ze-photovoltaic zihlanganisa i-BVR ne-YJV.I-BVR isho intambo yethusi engumongo we-PVC evalekile, intambo yamandla egqunywe nge-polyethylene exhumeke kakhulu ye-YJV.Lapho ukhetha, naka izinga le-voltage nezinga lokushisa lekhebula., ukukhetha uhlobo olunganqamuki ilangabi, ukucaciswa kwekhebula kuvezwa ngenani lama-cores, i-cross-section neleveli kagesi: Isethulo sokucaciswa kwekhebula legatsha eliwumgogodla owodwa, 1*isigaba esiphambanayo, njengalokhu: 1*25mm 0.6 /1kV, kusho izintambo ezingu-25 square metre.Isethulo sokucaciswa kwentambo yegatsha esontekile ehlukene, inani lamakhebula kusekethe efanayo * isigaba esiphambanayo, esifana nalokhu: 3*50+2*25mm 0.6/1KV, okusho izintambo ezibukhoma ezintathu eziyizikwele ezingama-50, intambo eyodwa emaphakathi yesikwele engama-25 kanye ne-A 25 square ground wire.
Isikhathi sokuthumela: Mar-20-2024