Inverter na'urar daidaita wutar lantarki ce da ta ƙunshi na'urorin semiconductor, waɗanda galibi ana amfani da su don canza wutar DC zuwa wutar AC.Gabaɗaya an haɗa shi da da'irar haɓakawa da da'irar gada inverter.Da'irar haɓaka tana haɓaka ƙarfin wutar lantarki na DC na tantanin halitta zuwa ƙarfin DC da ake buƙata don sarrafa fitarwar inverter;da'irar gadar inverter tana canza ƙarfin wutar lantarkin DC da aka haɓaka zuwa wutar lantarki ta AC tare da mitar gama gari daidai.
Inverter, wanda kuma aka sani da mai sarrafa wutar lantarki, ana iya raba shi zuwa samar da wutar lantarki mai zaman kanta da amfani mai haɗin grid bisa ga amfani da inverter a cikin tsarin samar da wutar lantarki na hotovoltaic.Dangane da hanyar daidaitawa ta waveform, ana iya raba shi zuwa mai jujjuyawar kalaman murabba'i, mai jujjuyawar motsi, inverter sine, da haɗa inverter mai mataki uku.Ga inverters da aka yi amfani da su a cikin tsarin haɗin grid, ana iya raba su zuwa nau'in inverters-nau'in canji da na'urar da ba ta da wutar lantarki gwargwadon ko akwai na'ura.Babban ma'auni na fasaha na hasken rana photovoltaic inverter sune:
1. Rated fitarwa ƙarfin lantarki
Mai jujjuyawar hoto ya kamata ya iya fitar da ƙimar ƙarfin lantarki mai ƙima a cikin kewayon juzu'i mai izini na ƙayyadaddun wutar lantarki na DC.Gabaɗaya, lokacin da aka ƙididdige ƙarfin ƙarfin fitarwa ya zama lokaci-lokaci 220v da 380v mai hawa uku, ana ƙayyadadden juzu'in canjin wutar lantarki kamar haka.
(1) Lokacin aiki a cikin tsayayyen yanayi, ana buƙatar gabaɗaya cewa juzu'in canjin wutar lantarki bai wuce ± 5% na ƙimar ƙima ba.
(2) Lokacin da aka canza kaya ba zato ba tsammani, bambancin wutar lantarki bai wuce ± 10% na ƙimar ƙima ba.
(3) A ƙarƙashin yanayin aiki na yau da kullun, rashin daidaituwa na fitowar ƙarfin lantarki na kashi uku ta inverter kada ya wuce 8%.
(4) Ana buƙatar karkatar da siginar wutar lantarki (sine wave) na fitowar matakai uku gabaɗaya kada ta wuce 5%, kuma fitowar lokaci ɗaya kada ta wuce 10%.
(5) Matsakaicin mitar wutar lantarki ta inverter fitarwa AC yakamata ya kasance cikin 1% ƙarƙashin yanayin aiki na yau da kullun.Mitar wutar lantarki da aka ƙayyade a cikin ma'aunin Gb/t 19064-2003 ya kamata ya kasance tsakanin 49 da 51hz.
2. Load ikon factor
Girman ma'aunin wutar lantarki yana nuna ikon inverter don ɗaukar nauyin inductive ko kaya mai ƙarfi.A karkashin yanayin sine igiyar ruwa, da load ikon factor ne 0.7 zuwa 0.9, da kuma rated darajar ne 0.9.A cikin yanayin wasu ƙarfin nauyi, idan ƙarfin wutar lantarki na inverter ya yi ƙasa, ƙarfin da ake buƙata na inverter zai karu, yana haifar da karuwar farashi.A lokaci guda, ikon da aka bayyana na da'irar AC na tsarin photovoltaic yana ƙaruwa, kuma halin yanzu yana ƙaruwa.Idan yana da girma, babu makawa asarar za ta karu, kuma ingancin tsarin kuma zai ragu.
3. Ƙididdigar fitarwa na halin yanzu da ƙarfin fitarwa
Ƙididdigar fitarwa na halin yanzu yana nufin ƙimar fitarwa na halin yanzu na inverter a cikin ƙayyadadden kewayon ma'aunin wutar lantarki, sashin shine;Ƙarfin fitarwa da aka ƙididdige yana nufin samfurin ƙimar ƙarfin fitarwa da ƙimar fitarwa na yanzu na inverter lokacin da ƙarfin fitarwa ya kasance 1 (watau tsaftataccen ƙarfin juriya), rukunin shine kva ko kw.
Lokacin aikawa: Yuli-15-2022