Kwi-inverter yendabuko kunye ne-converter, i-bus capacitors i-electrolytic capacitors, kodwa kwintsha, i-filimi capacitors ikhethiweyo, ziziphi iingenelo ze-filimi capacitors xa kuthelekiswa ne-electrolytic capacitors?

Okwangoku, ngakumbi nangakumbi kunye nabaguquli beentambo bakhetha ii-capacitors zefilimu ngezi zizathu zilandelayo:

(1) I-Film capacitors inokufikelela kwi-voltage ephezulu yokumelana kune-electrolytic capacitors.I-voltage elinganisiweyo ye-aluminium electrolytic capacitors iphantsi, ukuya kwi-450 V. Ukufumana i-voltage ephezulu yokumelana nenqanaba, ngokuqhelekileyo kufuneka isetyenziswe kwi-series, kwaye ingxaki yokulinganisa i-voltage kufuneka ithathelwe ingqalelo kwinkqubo yoxhulumaniso lwechungechunge.Ngokwahlukileyo, ifilimu capacitors inokufikelela ukuya kuthi ga kwi-20KV, ngoko ke akukho mfuneko yokuqwalasela uqhagamshelo lwechungechunge kwi-inverter ye-voltage ephakathi kunye nephezulu, kwaye kunjalo, akukho mfuneko yokuqwalasela iingxaki zoqhagamshelwano ezifana nokulinganisa umbane kunye neendleko ezihambelanayo kunye nexabiso elihambelanayo. abasebenzi.

(2) I-Film capacitors inokumelana nokushisa okuphezulu kune-electrolytic capacitors.

(3) Ixesha lokuphila kwefilimu capacitor lide kune-electrolytic capacitor.Ngokubanzi, ubude bobomi be-electrolytic capacitor yi-2,000H, kodwa ubomi be-CRE film capacitor yi-100,000H.

(4) I-ESR incinci kakhulu.I-ESR ye-capacitor yefilimu ngokuqhelekileyo iphantsi kakhulu, ngokuqhelekileyo ingaphantsi kwe-1mΩ, kwaye i-parasitic inductance nayo iphantsi kakhulu, kuphela amashumi ambalwa e-nH, engenakulinganiswa ne-aluminium electrolytic capacitors.I-ESR ephantsi kakhulu inciphisa uxinzelelo lwe-voltage kwi-tube yokutshintsha, enenzuzo ekuthembekeni nasekuzinzeni kombhobho wokutshintsha.

(5) Uxhathiso olunamandla lwangoku.Uxhathiso lwangoku lwe-metalized film capacitors lunokuba ngamaxesha alishumi ukuya kwishumi elinesibini le-rerated current ye-aluminium electrolytic capacitors yomthamo ofanayo.Ukuze kuphunyezwe ukuxhathisa okuphezulu kwangoku, i-aluminium electrolytic capacitors idla ngokusebenzisa umthamo omkhulu ukuhlangabezana neemfuno, ngelixa umthamo omkhulu yinkcitho engeyomfuneko yeendleko kunye nendawo yokufakela.