Tare da tabarbarewar matsalar makamashi, gajiyar albarkatun kasa da gurbacewar iska, kasar Sin ta kafa sabbin motocin makamashi a matsayin masana'antu masu tasowa bisa dabaru.A matsayin wani muhimmin ɓangare na motocin lantarki, caja abin hawa suna da ƙimar bincike na ka'ida da mahimmancin ƙimar aikace-aikacen injiniya.FIG.1 yana nuna tsarin toshe zane na caja abin hawa tare da haɗin gaban STAGE AC/DC da matakin baya DC/DC.
Lokacin da cajar mota ta haɗa da grid na wutar lantarki, zai samar da wasu nau'ikan jituwa, ya gurɓata grid ɗin wutar lantarki, kuma yana shafar kwanciyar hankali na kayan lantarki.Don iyakance adadin masu jituwa, Hukumar Kula da Kayan Wutar Lantarki ta Duniya ta ƙera ma'auni mai jituwa na iec61000-3-2 don kayan aikin lantarki, kuma China ta ba da ma'aunin GB/T17625 na ƙasa.Domin bin ƙa'idodin da ke sama, dole ne masu caja a kan jirgi su fuskanci gyaran yanayin wutar lantarki (PFC).PFC AC/DC Converter yana ba da wutar lantarki zuwa tsarin DC/DC na baya a gefe guda, da kuma samar da wutar lantarki a daya bangaren.Zane na PFC AC/DC Converter kai tsaye yana shafar aikin cajar mota.
Bisa la'akari da girma da haɗin kai na tsarkakakken caja na abin hawa na lantarki suna da ƙaƙƙarfan buƙatu, wannan ƙira tana amfani da fasahar gyara ƙarfin ƙarfin aiki (APFC).APFC tana da nau'ikan topologies iri-iri.Boost topology yana da fa'idodin kewayawar tuki mai sauƙi, ƙimar PF mai girma da guntu na musamman, don haka an zaɓi babban da'irar Boost topology.Idan aka yi la'akari da hanyoyin sarrafawa daban-daban, matsakaicin hanyar sarrafawa na yanzu tare da fa'idodin ƙarancin jujjuyawar jituwa, rashin jin daɗin amo da tsayayyen mitar sauyawa an zaɓi.
Wannan labarin bisa la'akari da ikon 2 kW duk-lantarki mota caja, la'akari da jituwa abun ciki, girma da anti-jamming yi bukatun zane, da key bincike PFC AC / DC Converter, ya ƙunshi babban tsarin da kuma kula da kewaye zane, da kuma bisa ga binciken, a cikin nazarin tsarin simulation da gwaje-gwaje na gwaji tabbatarwa
2 PFC AC/DC mai canzawa babban ƙirar kewaye
Babban da'irar PFC AC/DC Converter ya ƙunshi capacitor filter filter, na'urar sauyawa, haɓaka inductor da sauran abubuwan haɗin gwiwa, kuma an tsara sigoginsa kamar haka.
2.1 Fitar tacewa capacitance
Capacitor mai fitarwa na iya tace fitar da wutar lantarkin da ake fitarwa sakamakon aikin sauyawa da kuma kula da wutar lantarki a wani kewayon.Na'urar da aka zaɓa ya kamata ta fi fahimtar ayyuka biyu na sama.
Da'irar sarrafawa tana ɗaukar tsarin rufaffiyar madauki biyu: madauki na waje shine madauki na ƙarfin lantarki kuma madauki na ciki shine madauki na yanzu.Madauki na yanzu yana sarrafa shigar da halin yanzu na babban da'irar kuma yana bin diddigin halin yanzu don cimma daidaitattun abubuwan wuta.Ana kwatanta ƙarfin wutar lantarki na madauki na ƙarfin lantarki da ƙarfin ma'anar fitarwa ta hanyar amplifier kuskuren ƙarfin lantarki.Ana ƙididdige siginar fitarwa, wutar lantarki na ciyarwa da ƙarfin shigarwa ta mai ninka don samun madaidaicin madauki na yanzu.Ta hanyar daidaita madauki na yanzu, ana samar da siginar tuƙi na babban bututun kewayawa don cimma daidaitaccen ƙarfin wutar lantarki na tsarin da fitar da ingantaccen ƙarfin lantarki na DC.Ana amfani da mai ninkawa don haɓaka sigina.Anan, wannan takarda tana mai da hankali kan ƙirar madauki na ƙarfin lantarki da madauki na yanzu.
Lokacin aikawa: Juni-20-2022