Ibhokisi lokulawula lokuvala ngokushesha le-PLC leleveli iyithuluzi elisebenzisana ne-actuator yezinga lomlilo elivala shaqa ngokushesha ukwakha uhlelo lokuvala ngokushesha lwe-photovoltaic ohlangothini lwe-DC, futhi idivayisi ivumelana Nekhodi Kagesi Kazwelonke YaseMelika NEC2017&NEC2020 690.12 yokuvala ngokushesha kwe-photovoltaic iziteshi zikagesi.Ukucaciswa kudinga ukuthi isistimu ye-photovoltaic kuzo zonke izakhiwo, kanye nesekhethi engaphezu kwe-1 foot (305 mm) kusukela kuhlu lwamamojula we-photovoltaic, kufanele yehle ibe ngaphansi kuka-30 V phakathi nemizuzwana engu-30 ngemva kokuqala kokuvala shaqa ngokushesha;Isekhethi engaphakathi konyawo olu-1 (305 mm) ukusuka kuhlu lwemojuli ye-PV kufanele yehle ibe ngaphansi kuka-80V phakathi kwamasekhondi angu-30 ngemva kokuqala kokuvala shaqa ngokushesha.Isekhethi engaphakathi konyawo olu-1 (305 mm) ukusuka kuhlu lwemojuli ye-PV kufanele yehle ibe ngaphansi kuka-80V phakathi kwamasekhondi angu-30 ngemva kokuqala kokuvala shaqa ngokushesha.
Isistimu yokuvalwa ngokushesha komlilo yeleveli yengxenye inamandla okuzenzakalela nokuvala imisebenzi.Ngesisekelo sokuhlangabezana nezidingo zomsebenzi wokuvala shaqa ngokushesha ze-NEC2017&NEC2020 690.12, ingakhulisa ukukhiqizwa kwamandla wesistimu yokuphehla amandla e-photovoltaic futhi ithuthukise izinga lokuphehlwa kwamandla.Uma amandla amakhulu ajwayelekile futhi kungekho sidingo sokumisa izimo eziphuthumayo, ibhokisi lokulawula leleveli ye-module yokuvala ngokushesha i-PLC izothumela umyalo wokuvala ku-actuator yokuvala okusheshayo ngokusebenzisa umugqa wamandla we-photovoltaic ukuze uxhume iphaneli ngayinye ye-photovoltaic;Uma ugesi wemibhobho unqanyulwa noma isitobhi esiphuthumayo siqalwa, ibhokisi lokulawula le-PLC leleveli yengxenye-yezinga lokuvala ngokushesha lizothumela umyalo wokunqamula ku-actuator yokuvala shaqa ngokushesha ngomugqa wamandla we-photovoltaic ukuze unqamule iphaneli ngayinye ye-photovoltaic.
Ibhokisi lokulawula le-PLC leleveli yengxenye yokuvala ngokushesha liyidivayisi esetshenziswa ezinhlelweni ze-photovoltaic (PV) ukuze kube lula ukusebenza kokuvala shaqa ngokushesha ezingeni lengxenye.Ukuvala shaqa ngokushesha kuyisidingo sokuphepha okuhloswe ngaso ukunciphisa ubungozi bezingozi zikagesi phakathi nezimo eziphuthumayo noma imisebenzi yokulungisa.
Nawa amanye amaphuzu abalulekile mayelana nebhokisi lokulawula le-PLC leleveli yengxenye-leveli:
Inhloso: Injongo eyinhloko yebhokisi lokulawula le-PLC lokuvala shaqa ngokushesha iwukuba unike amandla umsebenzi wokuvala shaqa ngokushesha ohlelweni lwe-PV.Ukuvala shaqa ngokushesha kusho amandla okukhipha amandla ngokushesha amasekhethi e-DC ohlelo lwe-PV, ukwehlisa amandla kagesi emthonjeni abe sezingeni eliphephile phakathi nemicimbi ephuthumayo noma lapho kudingeka umsebenzi wokulungisa.
I-PLC (I-Programmable Logic Controller): I-PLC iyikhompyutha yedijithali esetshenziselwa ukulawula nokwenza izinqubo ezihlukahlukene.Kumongo webhokisi lokulawula ukuvala shaqa okusheshayo, i-PLC isetshenziswa ukuqapha nokulawula ukusebenza kokuvala shaqa okusheshayo kohlelo lwe-PV.Ithola amasignali kumadivayisi angaphandle futhi iqala inqubo yokuvala shaqa.
Ibhokisi Lokulawula: Ibhokisi lokulawula liqukethe ukujikeleza okudingekayo, izingxenye, kanye nezindawo zokusebenzela ukuze kusetshenziswe ukusebenza kokuvala shaqa okusheshayo.Ngokuvamile kufaka okokufaka kokwamukela amasiginali avela kumadivayisi angaphandle, njengeziqalisi zokuvala shaqa ngokushesha noma amaswishi okuvala shaqa okuphuthumayo, kanye nemiphumela yokulawula ukuvala shaqa kwesistimu ye-PV.
Ukuvalwa Kwezinga Lengxenye: Isistimu yokuvala shaqa okusheshayo yezinga lengxenye ihilela ukuvalwa kwezingxenye ezithile noma izingxenye zesistimu ye-PV, kunokuvala lonke uhlelo.Lokhu kuvumela abaphenduli bezimo eziphuthumayo noma abasebenzi bokulungisa ukuthi basebenze ngokuphepha ezindaweni ezithile ngaphandle kokuchayeka emazingeni okushisa aphezulu.
Ukuthobelana Namakhodi Namazinga: Izidingo zokuvala shaqa ngokushesha zicaciswe kumakhodi namazinga kagesi, njenge-National Electrical Code (NEC) e-United States.Ibhokisi lokulawula le-PLC lokuvala shaqa ngokushesha kufanele lihambisane nale mithetho ukuze kuqinisekiswe ukuthi uhlelo lwe-PV luhlangabezana nezidingo ezidingekayo zokuphepha.
Ukuhlanganiswa: Ibhokisi lokulawula le-PLC leleveli yengxenye yezinga elisheshayo lihlanganiswe nokulawula kanye nengqalasizinda yokuqapha yohlelo lwe-PV.Ixhumana nezinye izingxenye zesistimu, njengama-inverter noma amasistimu okuqapha, ukuxhumanisa inqubo yokuvala shaqa ngokushesha.
Kubalulekile ukubonisana nomuntu oqeqeshiwe osebenza ngogesi noma umklami wesistimu ye-PV ukuze uqinisekise ukukhethwa okufanele, ukufakwa, nokuhlanganiswa kwebhokisi lokulawula le-PLC lokuvala shaqa ngokushesha.Ukuhambisana namakhodi nemithetho kagesi wendawo kufanele kulandelwe ukuze kuqinisekiswe ukuphepha nokwethembeka kohlelo lwe-PV.
Siyakwamukela ukuze uxhumane nathi ngesidingo sakho esikhethekile ku-Rapid Shutdown PLC Control Box
Isikhathi sokuthumela: Aug-10-2023
