Uyilo oluDityanisiweyo lweGridi kunye neSiqinisekiso soKhuseleko kwii-Solar PV Inverters

Oorhulumente kunye neenkampani zamandla kwihlabathi jikelele balindele ukuba ukuveliswa kwamandla e-photovoltaic kuya kudlala indima ebalulekileyo ekuboneleleni kwamandla kwixesha elizayo. Ukuguqula umsinga othe ngqo (DC) oveliswe ziiseli zelanga zibe yi-alternating current (AC) enokuthi idibanise ngokungenamthungo kwigridi ayinikezeli nje umngeni wobugcisa kodwa ikwabeka iimfuno ezingqongqo kubayili. Ii-inverters ze-PV kufuneka zifezekise ukusebenza kakuhle kuluhlu olubanzi lweziphumo zamandla kunye neendawo zokusebenza ngelixa zibambelela ngokungqongqo kwimigangatho yokhuseleko.

Ubeko kunye neNgqwalasela yoYilo

Uyilo lwe-Photovoltaic inverter kufuneka lubeke phambili ukuguqulwa kwamandla ngokufanelekileyo ngelixa uqinisekisa ukhuseleko lwenkqubo. Umlinganiselo wamandla ochanekileyo uyinto ebalulekileyo ekuphuculeni ukusebenza kwe-inverter. Ukuxhasa iindlela eziguqukayo kwitekhnoloji ye-photovoltaic, abavelisi be-inverter kufuneka basebenzisane ngokusondeleyo nabavelisi benzwa ukuphuhlisa ngokudibeneyo iimveliso ezihlangabezana neemfuno zamva nje.

Ukuphucula ukuSebenza koMbane koMbane

Ukuvula amandla apheleleyo eenkqubo zePV, iinzame kufuneka zijolise ekuphuculeni ukusebenza kakuhle kokuveliswa kwamandla ukunciphisa iindleko. Okwangoku, abavelisi beeseli zelanga bazama ukunyusa ukuguqulwa kokukhanya ukuya kumbane, ngelixa abavelisi be-PV be-inverter begxininisa ekuphuhliseni i-inverters yesizukulwana esilandelayo esidibanisa ukuxilongwa kunye nezinye iimpawu ezihlakaniphile zokunyusa amandla kunye nokusebenza kakuhle. Itekhnoloji ye-Multi-string imele intsingiselo evelayo, eyenza ukuba umtya ngamnye weseli ube nesixhobo esizimeleyo seMaximum Power Point Tracking (MPPT), ngaloo ndlela sandise ukukhutshwa kwamandla.

Amanyathelo okhuseleko

Ngelixa uyilo lwe-transformerless lunceda ukunciphisa iindleko kunye nokuphucula ukusebenza kakuhle, luzisa nemingeni eyongezelelweyo yokhuseleko. Umzekelo, iziphumo ze-inverter zinokuqulatha amacandelo e-DC ngenxa yezinto ezifana nokutshintsha kwe-IGBT okungachanekanga. Ke ngoko, izinzwa zangoku ezichanekileyo kufuneka zibandakanywe ngexesha loyilo ukunciphisa i-offset kunye ne-drift, ukuqinisekisa ukuthotyelwa kwemida engqongqo ye-DC yokutofa kumazwe onke. Ukongezelela, ukuthintela ukuvuza komhlaba kubalulekile, okuqhelekileyo kuphunyezwe ngokusebenzisa izixhobo zangoku ezishiyekileyo (RCDs) okanye izisombululo zenzwa ezifanayo zokukhusela inkqubo.

Njengoko iteknoloji iqhubela phambili, iinkcukacha zoyilo lwe-photovoltaic inverter kulindeleke ukuba zibe ngqongqo ngakumbi. Umzekelo, imida ekuvunyelenwe ngayo kwihlabathi jikelele kwitotali ye-harmonic distortion (THD) ye-inverter output currents inokuvela. Oku kufuna umlinganiselo othe ngqo wangoku nakwiifrikhwensi eziphezulu kakhulu kunezaza zegridi eziqhelekileyo. Ukomeleza intsebenziswano phakathi kwabavelisi be-inverter kunye nabavelisi beenzwa banokubeka isiseko sokwenziwa kwezinto ezintsha zobuchwepheshe, ngaloo ndlela befumana umda wokukhuphisana kwishishini lelanga eliguqukayo ngokukhawuleza.

Isishwankathelo, ejongene nemarike ekhulayo yelanga, uyilo lwe-photovoltaic inverters akufanele luqhubele phambili ukusebenza kakuhle kodwa nokuqinisekisa ukhuseleko olupheleleyo. Ngokusebenzisa ubugcisa obuqhubekayo kunye nentsebenziswano esondeleyo yoshishino, sinokulindela ukubona ii-inverters ze-photovoltaic ezihlakaniphile, ezinokwethenjelwa, kunye nokusebenza kakuhle ngakumbi.