Njira zitatu zosinthira mphamvu za dzuwa + zosungirako mphamvu

Ngakhale mawu oti "solar + Storage" nthawi zambiri amatchulidwa m'mabwalo amagetsi, chidwi chochepa sichinaperekedwe kumtundu wanji wa solar + yosungirako. Nthawi zambiri, Itha kukonza zosungirako zoyendera dzuwa + m'njira zitatu:

• Standalone AC-coupled solar + energy storage: Dongosolo losungiramo mphamvu lili pamalo osiyana ndi malo opangira magetsi a dzuwa. Kuyika kwamtunduwu nthawi zambiri kumagwira ntchito kumadera opanda mphamvu.

• Ma AC-coupled solar + Storage Systems: Malo opangira magetsi a dzuwa ndi malo osungiramo mphamvu amakhala pamodzi ndipo amagawana malo amodzi olumikizirana ndi gridi kapena ali ndi magawo awiri olumikizana odziimira okha. Komabe, njira yopangira mphamvu ya dzuwa ndi njira yosungiramo mphamvu imalumikizidwa ndi inverter yosiyana. Malo osungiramo mphamvu zosungiramo mphamvu ali pafupi ndi dongosolo lopangira mphamvu za dzuwa. Amatha kutumiza mphamvu pamodzi kapena paokha.

• Dongosolo lophatikizana la DC-coupled solar + mphamvu yosungirako mphamvu: Malo opangira mphamvu ya dzuwa ndi njira yosungiramo mphamvu ndizogwirizana. Ndipo kugawana mgwirizano womwewo. Komanso, amalumikizidwa pa basi yomweyo ya DC ndipo amagwiritsa ntchito inverter yomweyo. Zitha kugwiritsidwa ntchito ngati malo amodzi.

Ubwino wotumizira machitidwe osungira mphamvu pawokha.

Machitidwe opangira mphamvu za dzuwa ndi machitidwe osungira mphamvu siziyenera kukhala pamodzi kuti apindule nawo. Mosasamala kanthu komwe ali pa gridi, malo osungira magetsi oima okha amatha kupereka ntchito za gridi ndikutembenuza mphamvu yochulukirapo kuchoka ku zongowonjezeranso mpaka nthawi yamagetsi yamadzulo. Ngati gwero la mphamvu ya dzuwa lili kutali ndi malo olemetsa, kusinthika kwakuthupi koyenera kungakhale kuyika njira yosungiramo mphamvu yodziimira pafupi ndi malo olemetsa. Mwachitsanzo, Fluence yatumiza njira yosungira batire ya maola 4 yokhala ndi mphamvu yoyika ya 30MW pafupi ndi San Diego kuti zitsimikizire kudalirika kwanuko ndikuwonjezera kugwiritsa ntchito mphamvu zowonjezera. Zothandizira ndi omanga akuyenera kuyang'ana kwambiri pakuyika makina osungira mphamvu omwe angakhale kapena sangakhale limodzi ndi ma solar power system, bola akhale ndi phindu lalikulu kwambiri.

Ubwino wa solar + energy storage co-location deployment

Nthawi zambiri, malo osungira a solar + amakhala ndi zabwino zambiri. Ndi kutumizidwa kophatikizana, solar + yosungirako imatha kulinganiza ndalama za polojekiti, kuphatikiza malo, ogwira ntchito, kasamalidwe ka projekiti, chilolezo, kulumikizana, ntchito, ndi kukonza. Ku US, eni mapulojekiti amathanso kuyitanitsa ndalama zamisonkho zogulira ndalama zambiri zosungirako ngati ali ndi udindo padzuwa.

Kutumiza kwa solar + kosungirako komwe kumatha kukhala AC kuphatikiza, komwe makina osungira mphamvu ndi makina opangira mphamvu ya dzuwa amakhala limodzi koma samagawana ma inverters. Itha kugwiritsanso ntchito makina olumikizirana a DC. Dongosolo lopangira mphamvu za dzuwa ndi njira yosungiramo mphamvu zimaphatikizidwa ku mbali ya DC ya inverter yogawana, ndipo mtengo wa projekitiyo ukhoza kugawidwa ndikukhala bwino. Malinga ndi kafukufuku wa NREL, pofika chaka cha 2020, Idzachepetsa ndalama zoyendetsera dongosolo ndi 30% ndi 40% pazosungirako zomwe zili ndi AC-coupled ndi DC-coupled solar + motsatana.

Kuyerekeza kwa DC-zophatikizana kapena AC-zophatikizana zotumizidwa

Mukawunika dongosolo la DC-coupled solar + Storage, mfundo zina zofunika kuziganizira. Ubwino waukulu wamakina ophatikizika a DC ophatikizika ndi solar + magetsi osungira ndi awa:

• Kuchepetsa mtengo wa zida pochepetsa mtengo wotumizira ma inverters, medium voltage switchgear, ndi zina.

• Amalola mphamvu ya dzuwa kuti igwire mphamvu ya dzuwa nthawi zambiri imatayika kapena kuchepetsedwa pamene inverter load factor ndi yaikulu kuposa 1, kutulutsa ndalama zowonjezera.

• Ikhoza kuphatikizira kusungirako kwa dzuwa + mphamvu mu mgwirizano umodzi wogula mphamvu (PPA).

Zoyipa zamakina a DC ophatikizana ndi solar + magetsi osungira ndi awa:

Poyerekeza ndi ma AC-coupled solar-plus-storage systems, DC-coupled solar-plus-storage systems ali ndi kusinthasintha kochepa kogwira ntchito chifukwa amachepetsedwa ndi mphamvu ya inverter pamene mphamvu yolumikizira ili yaikulu kwambiri. Mwachitsanzo, ngati wopanga ma solar akuyembekeza kufunikira kwakukulu pa nthawi yamphamvu kwambiri ya solar, sangathe kulipiritsa mabatire nthawi imodzi. Ngakhale izi ndizovuta, si vuto lalikulu m'misika yambiri.

Ogwira ntchito m'mafakitale amakhulupirira kuti DC yophatikiza solar + mphamvu yosungirako mphamvu ndiyo kasinthidwe yabwino kwambiri. Itha kupereka mphamvu yokhazikika ya dzuwa kwa nthawi yayitali, monga maola 4-6, kuti igwire mphamvu yadzuwa yodulidwa. Chifukwa cha inverter yogawana, Chipangizochi chimachepetsa mtengo wamagetsi opanga magetsi. Kutumiza kwa DC-coupled solar-plus-storage akuyembekezeka kuwonjezeka pazaka zingapo zikubwerazi pomwe ogwiritsa ntchito ma gridi ambiri akukumana ndi mayendedwe ovuta kwambiri a bakha.