Yadda ake zaɓar ƙimar amsawar wutar lantarki na tsarin rama wutar lantarki mara ƙarfi

Don haka don murkushe haɓakar harmonics na 5 da 7 yadda ya kamata, akwai tsarin rama wutar lantarki mai amsawa tare da mabambantan adadin amsawa (5.5%, 6%, ko 7%) a kasuwa a halin yanzu. Wanne tsarin ne ya fi aiki? Yaya za a zaɓa?

Manufar Haɗa Capacitors a Jere da Reactors

Saboda saurin ci gaban fasahar wutar lantarki ta dijital da kuma balagar fasahar semiconductor, aikace-aikacen masana’antu galibi suna amfani da na’urorin sarrafa saurin motsi don injuna, na’urorin daidaita wutar lantarki, da kayan sarrafawa na lokaci-lokaci waɗanda zasu iya daidaita ƙarfin fitarwa gwargwadon girman nauyi don cimma tanadin makamashi da rage amfani. Duk da haka, siffar igiyar wutar lantarki na irin waɗannan nau’ikan nauyi ba ta da layi kuma ba ta ci gaba ba yayin aiki. Yin amfani da capacitors masu tsabta azaman ramuwar wutar lantarki mai amsawa a cikin wannan yanayi zai haifar da haɗarin resonance a layi daya.

Don guje wa resonance a layi daya tsakanin capacitor mai tsabta da ma’aunin juriya na tsarin, an haɗa capacitor a jere da reactor. Wannan yana sa ma’aunin juriya na capacitor dangane da igiyoyin harmonic na tsarin ya zama inductive, yana guje wa wurin resonance yadda ya kamata kuma yana hana resonance na tsarin. Bugu da ƙari, haɗa capacitor a jere da reactor kuma yana ragewa da kuma hana igiyar wutar lantarki mai ƙarfi.

Babban manufar ramuwar wutar lantarki mai amsawa ta jeren reactors, ban da rama wutar lantarki mai amsawa na tsarin, shine guje wa wuraren resonance a layi daya na tsarin da kuma hana haɗarin resonance. Ko ana amfani da reactors na 5.5%, 6%, ko 7%, babban burin shine a guje wa haɓakar harmonics na 5 da 7. Saboda haka, adadin amsawa guda uku suna da aiki iri ɗaya. Duk da haka, yana da mahimmanci a lura cewa tasirin shayar da harmonic ya bambanta saboda mabambantan adadin amsawa na jere, kuma haɓakar wutar lantarki a ƙarshen capacitor shima ya bambanta. Saboda haka, lokacin amfani da adadin amsawa na 5.5%, ya kamata a yi la’akari da ƙarfin wutar lantarki na reactor sosai saboda mitar daidaitawa ta kusa da mitar harmonic na 5 fiye da sauran adadin biyu, kuma ƙarfin juriya na capacitor shima yana buƙatar ƙarawa daidai da haka. Lokacin amfani da adadin amsawa na 7%, ya kamata a kula da zaɓin ƙarfin wutar lantarki na capacitor saboda haɓakar wutar lantarki a ƙarshen capacitor ya fi girma bayan haɗa reactor a jere fiye da sauran adadin biyu. Kwatancen cikakke na adadin amsawa guda uku an nuna shi a Tebur 1.

Lokacin da igiyar harmonic ta tsarin ta yi yawa sosai (gabaɗaya sama da 100A), ƙungiyar capacitor-reactor da aka daidaita na iya haifar da haɗarin aminci, kuma ana iya buƙatar rage harmonic.