Ku-inverter yendabuko kanye ne-converter, ama-capacitors webhasi angama-electrolytic capacitors, kodwa kulawo amasha, ama-capacitors wefilimu akhethiwe, yiziphi izinzuzo ze-film capacitors uma kuqhathaniswa ne-electrolytic capacitors?

Njengamanje, ama-inverter amaningi amaphakathi nezintambo akhetha ama-capacitor wefilimu ngenxa yalezi zizathu ezilandelayo:

(1) Ama-capacitor wefilimu angafinyelela ukumelana nomthamo ophezulu kunama-electrolytic capacitor.I-voltage elinganisiwe ye-aluminium electrolytic capacitors iphansi, ifika ku-450 V. Ukuze uthole izinga eliphezulu lokumelana ne-voltage, ngokuvamile kudingeka lisetshenziswe ochungechungeni, futhi inkinga yokulinganisa i-voltage kufanele icatshangelwe ekuxhumekeni kochungechunge.Ngokuphambene, ama-capacitor wefilimu angafinyelela ku-20KV, ngakho-ke asikho isidingo sokucabangela uxhumano lwechungechunge kuzinhlelo zokusebenza ze-inverter zamandla aphakathi nendawo naphezulu, futhi-ke, asikho isidingo sokucabangela izinkinga zokuxhuma ezifana nokulinganisa kwamandla kagesi kanye nezindleko ezihambisanayo kanye nezindleko ezihambisanayo. abasebenzi.

(2) Ama-Film capacitor anokumelana nokushisa okuphezulu kunama-electrolytic capacitors.

(3) Isikhathi sokuphila se-capacitor yefilimu side kune-electrolytic capacitor.Ngokuvamile, ubude bempilo ye-electrolytic capacitor ngu-2,000H, kodwa isikhathi sempilo ye-CRE film capacitor ngu-100,000H.

(4) I-ESR incane kakhulu.I-ESR ye-film capacitor ngokuvamile iphansi kakhulu, ngokuvamile ingaphansi kwe-1mΩ, futhi i-inductance ye-parasitic nayo iphansi kakhulu, amashumi ambalwa kuphela we-nH, engenakuqhathaniswa nama-aluminium electrolytic capacitor.I-ESR ephansi kakhulu inciphisa ukucindezeleka kwe-voltage ku-switching tube, enenzuzo ekuthembekeni nasekuzinzeni kwe-switching tube.

(5) Ukumelana okunamandla kwamanje okuzwakalayo.Ukumelana okunyakazayo kwamanje kwama-capacitor efilimu enziwe ngensimbi kungaba izikhathi eziyishumi kuya kweziyishumi nambili ze-ripple current elinganiselwe ye-aluminium electrolytic capacitor yomthamo ofanayo.Ukuze kuzuzwe ukumelana okuphezulu kwamanje, ama-aluminium electrolytic capacitor ngokuvamile asebenzisa umthamo omkhulu ukuhlangabezana nezidingo, kuyilapho umthamo omkhulu uwukumosha okungadingekile kwezindleko nendawo yokufaka.