Kwi-Hybrid System, i-DC coupling kunye ne-AC coupling ziindlela ezimbini eziphambili zokwakha zokudibanisa iimodyuli ze-photovoltaic (PV), iibhetri zokugcina amandla, kunye nemithwalo okanye igridi. Ulwahlulo olusisiseko luxhomekeke ekubeni umbane owenziwe ngeemodyuli ze-PV uhanjiswa kwibhetri ngokuchanekileyo ngoku (DC) okanye i-alternating current (AC) ifom.
Apha ngezantsi luthelekiso oluneenkcukacha lwetekhnoloji ezimbini:
1. Imigaqo engundoqo kunye nokuhamba kwamandla
Ukudityaniswa kwe-DC:
- Umgaqo:
Umbane weDC oveliswe ziimodyuli zePV utyiswa kwigalelo leDC lenkqubo yokuguqula amandla (PCS) ngomlawuli wePV (DC-DC converter). Le nkqubo idibeneyo yenza le misebenzi ilandelayo:
-Ukuguqula inxalenye yamandla e-DC abe yi-AC kumthwalo wasekhaya okanye ukuthumela ngaphandle kwegridi.
- Itshaja ibhetri ngokuthe ngqo usebenzisa amandla eDC (DC-to-DC).
-Ikhupha ibhetri ngokuguqula i-DC ibuyele kwi-AC yokubonelela ngomthwalo okanye inaliti yegridi.
-Ukuhamba kwamandla (Ukutshaja):
Iimodyuli zePV (DC) → IsiLawuli sePV → Ibhetri (DC)
(Ngqo DC-ukuya-DC indlela yokutshaja)
-Ukuhamba kwamandla (Ukukhupha):
Ibhetri (DC) → PCS (DC-to-AC) → Layisha/Igridi (AC)
-Inqaku eliphambili:
Xa utshaja ibhetri, umbane uhlala kwifomu ye-DC kuyo yonke le nkqubo, ukuphepha ukuguqulwa okungadingekile.
Ukudibanisa kwe-AC:
- Umgaqo:
Umbane we-DC osuka kwiimodyuli ze-PV uguqulelwa kuqala kwi-AC nge-inverter ye-PV ezinikeleyo. La mandla e-AC angenza:
- Ukubonelela ngemithwalo yendawo ngokuthe ngqo.
- Ithunyelwe kwigridi.
Ukutshaja ibhetri, amandla e-AC kufuneka aguqulwe abuyele kwi-DC yi-PCS (inverter yebhetri).
-Ukuhamba kwamandla (Ukutshaja):
Iimodyuli zePV (DC) → Isiguquli sePV (DC-to-AC) → PCS (AC-to-DC) → Ibhetri (DC)
(Ibandakanya amanyathelo amabini okuguqula: DC→AC→DC)
-Ukuhamba kwamandla (Ukukhupha):
Ibhetri (DC) → PCS (DC-to-AC) → Layisha/Igridi (AC)
-Inqaku eliphambili:
Ukutshaja ibhetri kufuna umjikelo opheleleyo we-DC→AC→DC wokuguqula, uzisa ilahleko eyongezelelweyo.
2. Isishwankathelo esithelekisekayo seeMpawu eziPhambili
Ukuqukumbela
Zombini ukudityaniswa kwe-DC kunye ne-AC zibonelela ngeenzuzo ezahlukileyo ngokuxhomekeke kumxholo wesicelo. Ukudibanisa kwe-DC kuyagqwesa ekusebenzeni kakuhle kunye nokuphumelela kweendleko zofakelo olutsha, iyenza ilungele iiprojekthi ze-greenfield ezigxile ekusebenzeni. Ukudityaniswa kwe-AC, kwelinye icala, kunika ukuguquguquka okukhulu kunye nokuhambelana kwe-retrofit, okwenza kube yinto ekhethiweyo yokongeza ukugcinwa kwiinkqubo ze-PV ezikhoyo.
Olona khetho lufanelekileyo luxhomekeke kwizinto ezahlukeneyo zeprojekthi-ezifana nokuba inkqubo intsha okanye i-retrofit, imiqobo yebhajethi, iithagethi ezisebenzayo, izicwangciso zokwandiswa kwexesha elizayo, kunye nokuqwalaselwa kokhuseleko. Njengoko iteknoloji iqhubela phambili, zombini i-architectures iyaqhubeka nokuguquka: i-DC-coupled hybrid inverters iba yinto eguquguqukayo kwaye inamandla, ngelixa iinkqubo ezidibeneyo ze-AC ziphucula ngokubhekiselele kulawulo lokulungelelanisa kunye nokusebenza kakuhle kokuguqulwa.
Ndazise ukuba ungathanda inguqulelo eyenzelwe abaphulaphuli abathile (umzekelo, abatyali-zimali, iinjineli, abenzi bomgaqo-nkqubo) okanye ifomathiweyo kwiposti yecarousel.
