Hauv cov inverter thiab converter ib txwm muaj, cov capacitors tsheb npav yog cov electrolytic capacitors, tab sis hauv cov tshiab, cov zaj duab xis capacitors raug xaiv, qhov zoo ntawm cov zaj duab xis capacitors piv rau cov electrolytic capacitors yog dab tsi?

Tam sim no, ntau thiab ntau dua centralized thiab string inverters xaiv cov zaj duab xis capacitors rau cov laj thawj hauv qab no:

(1) Cov capacitors zaj duab xis tuaj yeem ua tiav qhov siab dua qhov hluav taws xob tiv taus dua li cov electrolytic capacitors. Qhov ntsuas hluav taws xob ntawm cov txhuas electrolytic capacitors qis dua, txog li 450 V. Yuav kom tau txais qhov siab dua qhov hluav taws xob tiv taus, lawv feem ntau yuav tsum tau siv hauv series, thiab qhov teeb meem ntawm qhov sib npaug ntawm qhov hluav taws xob yuav tsum tau xav txog thaum lub sijhawm sib txuas series. Hauv kev sib piv, cov zaj duab xis capacitors tuaj yeem ncav cuag txog 20KV, yog li tsis tas yuav xav txog kev sib txuas series hauv nruab nrab thiab siab voltage inverter daim ntawv thov, thiab ntawm chav kawm, tsis tas yuav xav txog cov teeb meem kev sib txuas xws li qhov sib npaug ntawm qhov hluav taws xob thiab tus nqi sib xws thiab cov neeg ua haujlwm.

(2) Cov capacitors zaj duab xis muaj qhov kub thiab txias dua li cov electrolytic capacitors.

(3) Lub sijhawm ua haujlwm ntawm zaj duab xis capacitor ntev dua li electrolytic capacitor. Feem ntau, lub sijhawm ua haujlwm ntawm electrolytic capacitor yog 2,000H, tab sis lub sijhawm ua haujlwm ntawm CRE zaj duab xis capacitor yog 100,000H.

(4) ESR me dua. ESR ntawm zaj duab xis capacitor feem ntau qis heev, feem ntau qis dua 1mΩ, thiab qhov parasitic inductance kuj qis heev, tsuas yog ob peb kaum ntawm nH, uas tsis muaj qhov sib piv los ntawm cov txhuas electrolytic capacitors. ESR qis heev txo qhov kev ntxhov siab ntawm lub raj hloov pauv, uas yog qhov zoo rau kev ntseeg siab thiab kev ruaj khov ntawm lub raj hloov pauv.

(5) Muaj zog dua qhov tsis kam ntawm cov hluav taws xob ripple. Qhov tsis kam ntawm cov hluav taws xob ripple ntawm cov hlau zaj duab xis capacitors tuaj yeem yog kaum txog ntau kaum ob npaug ntawm qhov ntsuas hluav taws xob ripple ntawm cov txhuas electrolytic capacitors ntawm tib lub peev xwm. Yuav kom ua tiav qhov tsis kam ntawm cov hluav taws xob tam sim no, cov txhuas electrolytic capacitors feem ntau siv lub peev xwm loj dua los ua kom tau raws li qhov yuav tsum tau ua, thaum lub peev xwm loj dua yog qhov tsis tsim nyog pov tseg cov nqi thiab qhov chaw teeb tsa.