M'zaka zaposachedwa, ukadaulo wopangira magetsi a photovoltaic wapita patsogolo kwambiri, ndipo mphamvu zoyika zidakwera kwambiri. Komabe, kupanga mphamvu ya photovoltaic kumakhala ndi zofooka monga zokhazikika komanso zosalamulirika. Asanayambe kuchitidwa, mwayi waukulu wopita ku gridi yamagetsi idzabweretsa zotsatira zazikulu ndikukhudza kugwira ntchito kokhazikika kwa gridi yamagetsi. . Kuwonjezera maulalo osungira mphamvu kungapangitse mphamvu ya photovoltaic kutulutsa mphamvu bwino komanso mokhazikika ku gridi, ndipo kupeza kwakukulu kwa grid sikudzakhudza kukhazikika kwa gridi. Ndipo photovoltaic + mphamvu yosungirako, dongosololi liri ndi mitundu yambiri yogwiritsira ntchito.
Makina osungira a Photovoltaic, kuphatikiza ma module a solar, owongolera,ma inverters, mabatire, katundu ndi zipangizo zina. Pakalipano, pali njira zambiri zamakono, koma mphamvu ziyenera kusonkhanitsidwa panthawi inayake. Pakadali pano, pali mitu iwiri yayikulu: kuphatikiza kwa DC "DC Coupling" ndi kuphatikiza kwa AC "AC Coupling".
1 DC yogwirizana
Monga momwe tawonetsera m'chithunzichi, mphamvu ya DC yopangidwa ndi photovoltaic module imasungidwa mu batire paketi kudzera mwa wolamulira, ndipo gululi lingathenso kulipiritsa batire kudzera mu bidirectional DC-AC converter. Malo osonkhanitsira mphamvu ali kumapeto kwa batri la DC.
Mfundo yogwirira ntchito ya DC kugwirizana: pamene photovoltaic system ikugwira ntchito, wolamulira wa MPPT amagwiritsidwa ntchito kulipira batri; pamene katundu wamagetsi akufunika, batire idzamasula mphamvu, ndipo panopa imatsimikiziridwa ndi katunduyo. Dongosolo losungiramo mphamvu limalumikizidwa ndi gridi. Ngati katunduyo ndi waung'ono ndipo batire imayendetsedwa mokwanira, dongosolo la photovoltaic likhoza kupereka mphamvu ku gridi. Pamene mphamvu yolemetsa ili yaikulu kuposa mphamvu ya PV, gululi ndi PV zimatha kupereka mphamvu pa katundu nthawi yomweyo. Chifukwa mphamvu zamagetsi za photovoltaic ndi mphamvu zolemetsa sizikhazikika, m'pofunika kudalira batri kuti muyese mphamvu ya dongosolo.
2 AC yogwirizana
Monga momwe tawonetsera m'chithunzi chomwe chili pansipa, ndondomeko yowonongeka yomwe imapangidwa ndi photovoltaic module imasinthidwa kukhala njira yosinthira kudzera mu inverter, ndipo imadyetsedwa mwachindunji ku katundu kapena kutumizidwa ku gridi. Gululi imathanso kulipiritsa batire kudzera pa bidirectional DC-AC bidirectional converter. Malo osonkhanitsira mphamvu ali kumapeto kwa kulumikizana.
Mfundo yogwiritsira ntchito AC coupling: imaphatikizapo photovoltaic power supply system ndi batire power supply system. Dongosolo la photovoltaic lili ndi ma photovoltaic arrays ndi ma inverters ogwirizana ndi grid; makina a batri amakhala ndi mapaketi a batri ndi ma inverters a bidirectional. Machitidwe awiriwa amatha kugwira ntchito pawokha popanda kusokonezana, kapena akhoza kupatulidwa ndi gululi lalikulu lamagetsi kuti apange micro-grid system.
Kuphatikizana kwa DC ndi AC ndi mayankho okhwima pakali pano, iliyonse ili ndi zabwino zake ndi zovuta zake. Malinga ndi ntchito zosiyanasiyana, sankhani njira yabwino kwambiri. Zotsatirazi ndikufanizira njira ziwirizi.
1 mtengo wofananira
Kuphatikizika kwa DC kumaphatikizapo chowongolera, bidirectional inverter ndi switch switch, kuphatikiza kwa AC kumaphatikizapo inverter yolumikizidwa ndi gridi, inverter ya bidirectional ndi kabati yogawa magetsi. Kuchokera pakuwona mtengo, wowongolera ndi wotsika mtengo kuposa inverter yolumikizidwa ndi grid. Chosinthira chosinthira chimakhalanso chotsika mtengo kuposa kabati yogawa mphamvu. Dongosolo lophatikizana la DC litha kupangidwanso kukhala makina ophatikizika ndi inverter, omwe amatha kupulumutsa mtengo wa zida ndi ndalama zoyika. Choncho, mtengo wa DC coupling scheme ndi wotsika pang'ono kuposa wa AC coupling scheme.
2 Kugwiritsa ntchito kufananiza
DC coupling system, controller, batire ndi inverter zimalumikizidwa mndandanda, kulumikizana kuli pafupi, koma kusinthasintha kumakhala koyipa. Mu AC coupling system, inverter yolumikizidwa ndi gridi, batire yosungira ndi bidirectional converter ndizofanana, kulumikizana sikuli kolimba, ndipo kusinthasintha kuli bwino. Mwachitsanzo, mu dongosolo la photovoltaic lomwe laikidwa kale, m'pofunika kuyika makina osungira mphamvu, ndi bwino kugwiritsa ntchito kugwirizana kwa AC, bola ngati batire ndi bidirectional converter zimayikidwa, sizingakhudze dongosolo loyambirira la photovoltaic, ndi dongosolo yosungirako mphamvu Kwenikweni, mapangidwewo alibe chiyanjano chachindunji ndi dongosolo la photovoltaic ndipo akhoza kutsimikiziridwa malinga ndi zosowa. Ngati ndi pulogalamu yatsopano yokhazikitsidwa ndi gridi, ma photovoltaics, mabatire, ndi ma inverters ayenera kupangidwa molingana ndi mphamvu ya wogwiritsa ntchito komanso kugwiritsa ntchito mphamvu, ndipo makina olumikizirana a DC ndiwoyenera. Komabe, mphamvu ya DC coupling system ndi yaying'ono, nthawi zambiri imakhala pansi pa 500kW, ndipo ndi bwino kuwongolera dongosolo lalikulu ndi AC coupling.
3 kufananiza kothandiza
Kuchokera pakuwona bwino kwa kugwiritsa ntchito photovoltaic, ndondomeko ziwirizi zili ndi makhalidwe awo. Ngati wosuta akunyamula zambiri masana ndi zochepa usiku, ndi bwino kugwiritsa ntchito AC coupling. Ma modules a photovoltaic amapereka mphamvu mwachindunji ku katundu kudzera mu gridi yolumikizidwa ndi inverter, ndipo mphamvuyo imatha kufika Kuposa 96%. Ngati katundu wa wogwiritsa ntchitoyo ndi wochepa kwambiri masana ndi usiku, ndipo mphamvu ya photovoltaic iyenera kusungidwa masana ndikugwiritsidwa ntchito usiku, ndi bwino kugwiritsa ntchito kugwirizana kwa DC. Module ya photovoltaic imasunga magetsi ku batri kudzera mwa wolamulira, ndipo mphamvuyo imatha kufika kupitirira 95%. Ngati ndi AC coupling , Photovoltaics iyenera kusinthidwa kukhala mphamvu ya AC kudzera mu inverter, ndiyeno imasinthidwa kukhala mphamvu ya DC kupyolera mu bidirectional converter, ndipo mphamvuyo idzatsikira pafupifupi 90%.
Ameninsolar'sN3Hx mndandanda ogawanika gawo inverterskuthandizira kulumikizana kwa AC ndipo adapangidwa kuti apititse patsogolo mphamvu zamagetsi zamagetsi. Tikulandira ofalitsa ambiri kuti agwirizane nafe polimbikitsa zinthu zatsopanozi. Ngati mukufuna kukulitsa zogulitsa zanu ndikupereka ma inverter apamwamba kwambiri kwa makasitomala anu, tikukupemphani kuti mugwirizane nafe ndikupindula ndiukadaulo wapamwamba komanso kudalirika kwa mndandanda wa N3Hx. Lumikizanani nafe lero kuti tifufuze mwayi wosangalatsawu wogwirizana ndikukula mumakampani opanga mphamvu zongowonjezwdwa.
Nthawi yotumiza: Feb-15-2023
