Kubera ko ikibazo cy’ingufu cyiyongera, umunaniro ukabije ndetse n’umwanda uhumanya ikirere, Ubushinwa bwashyizeho ibinyabiziga bishya by’ingufu nk’inganda zigenda ziyongera.Nkigice cyingenzi cyimodoka zamashanyarazi, charger yimodoka ifite agaciro kubushakashatsi bwubushakashatsi hamwe nagaciro gakoreshwa mubuhanga.FIG.1 yerekana igishushanyo mbonera cya charger yimodoka hamwe nuruvange rwimbere AC / DC nicyiciro cyinyuma DC / DC.
Iyo charger yimodoka ihujwe numuyoboro wamashanyarazi, izabyara ibintu bimwe bihuza, ihumanya umuyagankuba, kandi bigire ingaruka kumikorere yibikoresho byamashanyarazi.Mu rwego rwo kugabanya ingano y’ibihuza, Komisiyo mpuzamahanga y’amashanyarazi yateguye igipimo cy’imipaka iec61000-3-2 ku bikoresho by’amashanyarazi, naho Ubushinwa nabwo butanga IGIHUGU gisanzwe GB / T17625.Kugirango hubahirizwe ibipimo byavuzwe haruguru, charger zo mu ndege zigomba gukosorwa imbaraga (PFC).Ihinduka rya PFC AC / DC ritanga ingufu kuri sisitemu yinyuma ya DC / DC kuruhande rumwe, naho amashanyarazi afasha kurundi ruhande.Igishushanyo cya PFC AC / DC gihindura bigira ingaruka kumikorere ya charger yimodoka.
Urebye ingano noguhuza amashanyarazi yumuriro wamashanyarazi afite ibyangombwa bikaze, iki gishushanyo gikoresha ikorana buhanga rikosora (APFC) tekinoroji.APFC ifite topologiya zitandukanye.Topologiya ya Boost ifite ibyiza byo gutwara ibinyabiziga byoroshye, agaciro ka PF hamwe na chip idasanzwe yo kugenzura, bityo umuzenguruko nyamukuru wa Boost topologiya watoranijwe.Urebye uburyo butandukanye bwibanze bwo kugenzura, impuzandengo yuburyo bwo kugenzura hamwe nibyiza byo kugoreka ibintu bike, kutumva urusaku hamwe ninshuro zihinduranya byatoranijwe.
Iyi ngingo urebye imbaraga za 2 kilowateri yumuriro wamashanyarazi yose, urebye ibirimo guhuza, ingano hamwe nibikorwa byo kurwanya ibishushanyo mbonera, ubushakashatsi bwingenzi PFC AC / DC ihindura, ikubiyemo sisitemu nyamukuru yumuzunguruko no kugenzura ibizunguruka, kandi hashingiwe ku bushakashatsi, mu bushakashatsi bwo kwigana sisitemu n'ibizamini byo kugerageza bigenzura
2 PFC AC / DC ihindura igishushanyo mbonera cyumuzingi
Inzira nyamukuru ya PFC AC / DC ihinduranya igizwe na capacitor isohoka, ibikoresho byo guhinduranya, kuzamura inductor nibindi bice, kandi ibipimo byayo byakozwe kuburyo bukurikira.
2.1 Ibisohoka muyunguruzi ubushobozi
Ibisohoka muyunguruzi capacitor irashobora gushungura ibisohoka voltage ripple yatewe nigikorwa cyo guhinduranya no gukomeza ibisohoka mumashanyarazi murwego runaka.Igikoresho cyatoranijwe kigomba kumenya neza imikorere ibiri yavuzwe haruguru.
Igenzura ryumuzunguruko rifata ibyiciro bibiri bifunze-bizunguruka: umugozi winyuma ni voltage loop naho imbere imbere niwo muzingo.Umuzingo uriho ugenzura ibyinjira byumuzunguruko nyamukuru kandi ukurikirana ibyerekanwe kugirango ugere kubintu bikosora.Ibisohoka voltage ya voltage loop hamwe nibisohoka byerekana voltage bigereranwa na voltage ikosa amplifier.Ibisohoka bisohoka, imbaraga zo kugaburira no kwinjiza voltage zibarwa na kugwiza kugirango ubone ibyinjira byerekanwa byubu.Muguhindura ibizunguruka, ibimenyetso byo gutwara ibiyobora nyamukuru byumuzunguruko byakozwe kugirango ugere kubintu bikosora sisitemu hanyuma bisohore ingufu za DC zihamye.Kugwiza bikoreshwa cyane cyane kugwiza ibimenyetso.Hano, iyi mpapuro yibanze ku gishushanyo mbonera cya voltage loop na loop ya none.
Igihe cyo kohereza: Jun-20-2022