Zingwe zofunika pa dongosolo la solar panel
Mu makina a solar panel (PLTS), zingwe nthawi zambiri zimaonedwa ngati chinthu chosavuta—komabe zimakhala ndi gawo lofunika kwambiri pakugwira bwino ntchito kwa makina, chitetezo, komanso kudalirika. Kusankha mtundu wolakwika wa chingwe kapena kukula kolakwika kwa chingwe kungayambitse kutayika kwa mphamvu (kutsika kwa magetsi), kutentha kwambiri, komanso chiopsezo cha moto. Nkhaniyi ikufotokoza mitundu ya zingwe zomwe zimafunika mu makina a solar panel, ntchito zawo, ndi zinthu zofunika kuziganizira kuti zikhazikike bwino komanso motetezeka.
1. N’chifukwa chiyani kusankha chingwe cha magetsi a dzuwa n’kofunika kwambiri?
Dongosolo la solar panel limapereka magetsi a DC (direct current) kuchokera ku ma solar modules kupita ku zipangizo zina monga ma combiner box, ma charge controllers, ma inverter, ndipo pamapeto pake kupita ku load kapena power grid. Mphamvu yamagetsi imatha kukhala yayikulu kwambiri, makamaka m'makina otsika mphamvu yamagetsi (monga 12V kapena 24V). Ngati zingwezo ndi zazing'ono kwambiri, kukana kwamagetsi kumawonjezeka, zomwe zimapangitsa kuti zingwezo zitenthe kwambiri ndikupangitsa kuti magetsi azichepa, zomwe zimachepetsa magwiridwe antchito.
Kuphatikiza apo, ma solar panel nthawi zambiri amakhala panja, amakumana ndi kuwala kwa UV, mvula, chinyezi, komanso kusintha kwakukulu kwa kutentha. Chifukwa chake, zingwe ziyenera kukhala zotetezeka ku nyengo, zosagonjetsedwa ndi UV, komanso zokhala ndi zotetezera kutentha zomwe zimakwaniritsa miyezo yamagetsi ya DC.
2. Chingwe chapadera cha DC cha mapanelo a dzuwa (Chingwe cha PV)
Chingwe chomwe chimagwiritsidwa ntchito kwambiri ndi ma solar panel systems ndi PV cable, yomwe nthawi zambiri imatchedwa solar cable. Ichi ndi chingwe cha single-core chomwe chimapangidwa makamaka kuti chiziyendetsa magetsi a DC kuchokera kuma panel. Makhalidwe ake akuluakulu ndi awa:
– Yolimba ku UV ndi nyengo: yoyenera kuyikidwa padenga kapena m'malo otseguka.
– Kuteteza kawiri: nthawi zambiri kumakhala ndi jekete lakunja ndi kutetezera mkati kuti zikhale zotetezeka kwambiri.
– Kukana kutentha kwambiri: nthawi zambiri kumapangidwa kuti kugwire ntchito pa kutentha kosiyanasiyana.
– Yosagwira ntchito yolimba: siiwonongeka mosavuta chifukwa cha kukangana ndi chimango kapena njira ya chingwe.
Chingwe cha PV chimagwiritsidwa ntchito polumikiza:
- kuchokera pa gulu kupita pa gulu (chingwe)
- kuchokera ku bokosi la zingwe kupita ku bokosi losakaniza
- kuchokera ku bokosi lophatikiza mpaka ku inverter (gawo la DC)
Kukula komwe kumagwiritsidwa ntchito kwambiri ndi 4 mm² ndi 6 mm², koma kukula koyenera kuyenera kuwerengedwa kutengera mphamvu yayikulu yamagetsi, kutalika kwa chingwe, ndi malire ololedwa a kutayika kwa magetsi.
3. Chingwe cha solar panel ndi cholumikizira cha MC4
Mu ma solar panel, ma intermodule connections nthawi zambiri amagwiritsa ntchito MC4 (kapena zogwirizana). Ma PV cables nthawi zambiri amaikidwa kale pama panel, koma akatambasula mtunda, ma PV cables ena okhala ndi MC4 connectors amafunika.
Zinthu zofunika kuzikumbukira:
- Onetsetsani kuti cholumikizira cha MC4 chili chabwino komanso chikugwirizana ndi miyezo, chifukwa kulumikizana kosasunthika kungayambitse kutentha (malo otentha).
- Musasakanize zolumikizira kuchokera ku mitundu yosiyanasiyana ngati sizikugwirizana, chifukwa izi zingayambitse kukhudzana kolakwika.
- Gwiritsani ntchito chida chapadera chomangira kuti ma connector pin akhazikike bwino komanso kuti asatuluke mosavuta.
MC4 yokha si chingwe, koma chipangizo chomwe chimagwirizana kwambiri chifukwa ndiye "cholumikizira" chachikulu kumbali ya DC ya panelo.
4. Chingwe cha batri
Pa makina a PV a dzuwa omwe sali pa gridi kapena hybrid omwe amagwiritsa ntchito mabatire, zingwe za batire ndi gawo lachiwiri lofunika kwambiri pambuyo pa zingwe za PV. Mosiyana ndi mbali ya panel, zingwe za batire zimakhala ndi mphamvu yayikulu, makamaka pamene inverter imatenga mphamvu zambiri.
Makhalidwe a chingwe chabwino cha batri:
– Ulusi wofewa (wosinthasintha): umapangitsa kuyika kukhala kosavuta komanso kukana kugwedezeka.
– Gawo lalikulu: likhoza kukhala 16 mm², 25 mm², 35 mm², 50 mm², kapena kuposerapo, kutengera mphamvu ya inverter ndi dongosolo la batri.
– Choteteza kutentha chokhuthala komanso chosatentha: chifukwa mafunde amphamvu angayambitse kutentha.
Zingwe za batri zimagwiritsidwa ntchito polumikiza:
- chowongolera cha batri kupita ku chaji (kapena chowongolera cha mphamvu ya dzuwa)
- batire kupita ku inverter
– pakati pa mabatire (mndandanda/wofanana)
Mu gawoli, kusankha kukula kwa chingwe kuyenera kusamalidwa. Zolakwika zomwe zimachitika nthawi zambiri zimaphatikizapo kugwiritsa ntchito zingwe zazing'ono kwambiri, zomwe zingayambitse kuchepa kwa magetsi, ma inverter otsika mphamvu pafupipafupi, kapena ma terminal a batri otentha.
5. Chingwe cha AC (cha mbali yotulutsira inverter)
Mphamvu ya DC yochokera m'mapanelo ndi mabatire ikasinthidwa kukhala AC ndi inverter, mphamvu yotuluka imagwiritsa ntchito waya wamba wa AC. Mtundu wa waya umadalira momwe imagwiritsidwira ntchito:
– NYM: yodziwika bwino poika m'nyumba m'mapaipi/mitsinje kapena m'malo otetezedwa.
– NYY: yoyenera kugwiritsidwa ntchito panja kapena malo omwe amafunika chitetezo champhamvu.
– Zingwe zosinthika (monga NYAF kapena zingwe zosweka): nthawi zambiri zimagwiritsidwa ntchito m'mapanelo amagetsi kapena mizere yomwe imafuna kusinthasintha.
Zingwe za AC zimagwiritsidwa ntchito pa:
- chosinthira ku gawo logawa (MCB/ELCB)
- gulu logawa katundu m'nyumba/nyumba
- njira yolumikizirana ndi netiweki ya PLN (pa gridi/makina osakanizidwa malinga ndi malamulo)
Kumbali ya AC, miyezo yachitetezo monga kuyika pansi, ELCB/RCD, ndi ma circuit breakers (MCB) iyeneranso kuganiziridwa.
6. Chingwe chogwetsa pansi
Makina opangira magetsi a dzuwa amafunika kukhazikika pansi kuti atetezeke, kuteteza mphezi, komanso kuchepetsa chiopsezo cha kugwedezeka kwa magetsi chifukwa cha kutuluka kwa madzi oteteza kutentha. Chingwe chokhazikika pansi nthawi zambiri chimakhala chobiriwira-chikasu ndipo chimalumikiza:
- chimango cha gawo la dzuwa (chimango)
- kapangidwe koyikira
- thupi la inverter ndi gulu lamagetsi
- chitetezo cha mphezi (ngati chilipo) ku ndodo yoyambira
Zingwe zomangira pansi zitha kukhala zingwe zamkuwa kapena zamkuwa zopanda kanthu (BC), kutengera kapangidwe kake. Kukula kwake kumadalira miyezo yachitetezo chapafupi, koma mfundo ndi yakuti ziyenera kukhala zazikulu mokwanira komanso zolumikizira zolimba, zosagwirizana ndi dzimbiri.
7. Zingwe zolumikizirana ndi masensa (ngati mukufuna)
Machitidwe ena amakono amafunikira zingwe zowonjezera kuti apeze deta ndi kuyang'anira, mwachitsanzo:
- Chingwe cha RS485 cha inverter kupita ku logger/kuyang'anira kulumikizana
- Chingwe cha LAN cholumikizira intaneti
- chingwe cha sensa yamagetsi (CT clamp) chowerengera mphamvu yotumizira ndi kutumiza kunja
- chingwe choyezera kutentha kwa batri pa zowongolera zina zoyatsira
Zingwe izi sizinyamula mphamvu zambiri, koma ndizofunikirabe kuti pakhale njira yolondola komanso yokhazikika yowunikira.
8. Dziwani kukula kwa chingwe: mphamvu yamagetsi, kutalika, ndi kutsika kwa magetsi
Kudziwa kukula kwa chingwe kuyenera kutengera:
1. Mphamvu yayikulu (A) yomwe idzadutsa
2. Utali wa chingwe (m) ulendo wobwerera (lupu)
3. Malire ochepetsa mphamvu yamagetsi omwe mukufuna nthawi zambiri amakhala 1–3% kumbali ya DC kuti apitirize kugwira ntchito bwino.
Chingwe chikakhala chachitali, mphamvu yamagetsi imachepa kwambiri. Njira zothetsera kutayika kwa mphamvu yamagetsi zimaphatikizapo kuwonjezera gawo la chingwe kapena kuwonjezera mphamvu yamagetsi ya dongosolo (monga, kuchokera pa 12V mpaka 24V/48V). Nthawi zambiri, kugwiritsa ntchito zingwe zazikulu kumakhala kokwera mtengo, koma kumasunga mphamvu ndikuchepetsa chiopsezo cha kutentha kwambiri.
9. Chinthu china chofunikira: kusankha zinthu ndi ubwino wake
– Mkuwa poyerekeza ndi aluminiyamu: Mkuwa uli ndi mphamvu yoyendetsa bwino magetsi ndipo umapezeka kwambiri m'mafakitale opanga magetsi a dzuwa, makamaka m'mabatire ndi mawaya a PV. Aluminiyamu ndi yotsika mtengo koma imafuna njira zapadera zochotsera magetsi.
– Chitsimikizo/miyezo: gwiritsani ntchito zingwe zokhala ndi zofunikira zomveka bwino, osati zingwe "zachisawawa" zopanda mavoti a kukana kwa UV kapena zopanda chidziwitso cha kutentha komwe zikugwira ntchito.
- Kusamalira ma chingwe: gwiritsani ntchito njira yolumikizira ma waya, thireyi ya ma waya, kapena ma clamp osagwira UV kuti ma waya azikhala oyera komanso kuti asatuluke mosavuta.
- Chitetezo: onetsetsani kuti dongosololi likugwiritsa ntchito chotsegula mafunde cha DC (fuse) ndi chitetezo cha surge (SPD) ngati pakufunika.
Mapeto
Zingwe zomwe zili mu solar panel system sizimangolumikiza zokha; ndi zinthu zofunika kwambiri zomwe zimatsimikiza momwe zinthu zilili komanso chitetezo. Nthawi zambiri, muyenera: Chingwe cha PV cha mbali ya DC ya panel, chingwe cha batri chachikulu cha makina osungiramo zinthu, chingwe cha AC cha inverter output, chingwe choteteza pansi kuti chikhale chotetezeka, ndi chingwe cholumikizirana ngati makinawo akuthandizira kuyang'anira. Mukasankha mtundu woyenera wa chingwe, kukula koyenera, komanso mtundu wotsimikizika, makina anu a solar panel amatha kugwira ntchito mokhazikika, kuchepetsa kusokoneza, komanso kukhala nthawi yayitali.
Ngati mukufuna, ndingakuthandizeni kupanga malangizo a kukula kwa chingwe kutengera deta ya makina anu (mphamvu ya panel, voltage ya makina, mtunda wa panel-inverter, mtundu wa inverter, komanso ngati imagwiritsa ntchito mabatire).
