Kodi kusankha chingwe choyenera?

M'zaka zaposachedwapa, teknoloji yamafakitale a photovoltaicwakula mofulumira komanso mofulumira.Mphamvu za ma modules amodzi zakhala zazikulu komanso zazikulu, ndipo zamakono za chingwe zakhalanso zazikulu komanso zazikulu.Ma module amphamvu kwambiri afika kupitilira 17A.Pankhani ya mapangidwe a dongosolo, kugwiritsa ntchito zida zamphamvu kwambiri komanso malo osungirako oyenerera kungachepetse mtengo woyambira wandalama komanso mtengo wa ola la kilowatt wa dongosolo.Mtengo wa zingwe za AC ndi DC mu dongosolo siwotsika.Kodi kupanga ndi kusankha kumayenera kuchitidwa bwanji kuti achepetse ndalama?

1. Kusankha zingwe za DC

Chingwe cha DC chimayikidwa panja.Nthawi zambiri tikulimbikitsidwa kusankha zingwe zapadera za photovoltaic zomwe zalumikizidwa ndi ma radiation.Pambuyo pa kuyatsa kwamphamvu kwa ma elekitironi amtengo wapatali, mawonekedwe a maselo azitsulo zosungunulira chingwe amasintha kuchokera ku mzere kupita ku mawonekedwe atatu a maukonde amtundu wa ma molekyulu, ndipo kukana kutentha kumawonjezeka kuchoka ku 70 ° C mpaka 90 ° C, 105 ° C, 125 ° C, 135 ° C, Ngakhale mpaka 150 ° C, mphamvu yonyamula panopa ndi 15-50% kuposa ya zingwe zofanana.Imatha kupirira kutentha kwambiri komanso kukokoloka kwa mankhwala ndipo itha kugwiritsidwa ntchito panja kwa zaka zopitilira 25.Posankha zingwe za DC, sankhani zinthu kuchokera kwa opanga nthawi zonse okhala ndi ziphaso zoyenera kuti muwonetsetse kuti zikugwiritsidwa ntchito panja kwa nthawi yayitali.

Panopa, ambiri ntchitophotovoltaic DC chingwendi PV1-F1*4 44 square mita chingwe.Komabe, ndi kuwonjezeka kwamakono kwa ma modules a photovoltaic ndi kuwonjezeka kwa mphamvu ya inverter imodzi, kutalika kwa chingwe cha DC kukuwonjezekanso.6 masikweya mita Kugwiritsa ntchito zingwe za DC kukuchulukiranso.

Malinga ndi zofunikira, zimalimbikitsidwa kuti kutayika kwa photovoltaic DC sikuyenera kupitirira 2%.Timagwiritsa ntchito muyezo uwu kupanga momwe tingasankhire zingwe za DC.Mzere kukana kwa PV1-F1 * 4mm² DC chingwe ndi 4.6mΩ/mita, ndi kukana mzere wa PV6mm² DC chingwe ndi 3.1 mΩ/mita, poganiza kuti DC gawo ntchito voteji ndi 600V, 2% voteji dontho imfa ndi 12V, poganiza. kuti gawo lamakono ndi 13A, pogwiritsa ntchito chingwe cha 4mm² DC, mtunda pakati pa mapeto akutali kwambiri a gawoli ndi inverter akulimbikitsidwa kuti asapitirire mamita 120 (chingwe chimodzi, (kupatula mizati yabwino ndi yoipa), ngati mtunda uli waukulu kuposa uwu. mtunda, tikulimbikitsidwa kusankha chingwe cha 6mm² DC, koma tikulimbikitsidwa kuti mtunda wapakati pa mapeto a chigawocho ndi inverter usapitirire mamita 170.

2. Kuwerengera kwa chingwe cha Photovoltaic

Pofuna kuchepetsa mtengo wa dongosolo, zigawozo ndima inverters a malo opangira magetsi a photovoltaicsamasinthidwa kawirikawiri mu chiŵerengero cha 1: 1.M'malo mwake, masanjidwe ena opitilira muyeso amapangidwa potengera momwe kuyatsa, zosowa zama projekiti, ndi zina, mwachitsanzo, gawo la 110KW ndi inverter ya 100KW, yowerengedwa kutengera nthawi 1.1 mbali ya AC yopitilira muyeso wa inverter, kuchuluka kwa AC kutulutsa kwapano kuli pafupifupi. 158A.Chingwe cha AC chikhoza kusankhidwa kutengera kuchuluka kwamphamvu komwe kumatulukainverter.Chifukwa zilibe kanthu kuti zingasinthidwe ndi zigawo zingati, kulowetsa kwa AC kwa inverter sikudzapitirira kuchuluka kwaposachedwa kwa inverter.

3. Inverter AC linanena bungwe magawo

Zingwe zamkuwa za AC zomwe zimagwiritsidwa ntchito kwambiri pamakina a photovoltaic zimaphatikizapo BVR ndi YJV.BVR amatanthauza mkuwa pachimake PVC insulated waya waya, YJV mtanda zogwirizana polyethylene insulated mphamvu chingwe.Posankha, tcherani khutu ku mlingo wa voteji ndi mlingo wa kutentha kwa chingwe., kusankha mtundu woletsa moto, mawonekedwe a chingwe amawonetsedwa ndi kuchuluka kwa ma cores, gawo lodziwikiratu ndi gawo lamagetsi: Kuyimira chingwe choyimira nthambi imodzi, 1 * gawo lodziyimira, monga: 1 * 25mm 0.6 / 1kV, kutanthauza 25 lalikulu mita ya zingwe.Mipikisano core yokhotakhota nthambi yoimira nthambi, chiwerengero cha zingwe mu dera lomwelo * mwadzina mtanda gawo, monga: 3*50+2*25mm 0.6/1KV, kutanthauza mawaya atatu lalikulu 50 mawaya, wina 25 lalikulu mawaya ndale ndi A 25 square ground waya.