Sinhronizacija tokovne reference aktivnega močnostnega filtra na popačeno omrežno napetost
نویسندگان
چکیده
Povzetek. Osnovno jalovo moč in harmonsko popačenje v omrežju lahko kompenziramo s paralelnim aktivnim močnostnim filtrom. Poleg ustrezne topologije močnostnega dela filtra je za dober dinamičen odziv na spremembe obremenitve pomemben tudi način ugotavljanja želene vrednosti filtrskega toka. Želena vrednost filtrskega toka mora biti sinhronizirana z omrežno napetostjo, ker pa je le-ta pogosto popačena, prihaja do nepravilnosti pri obratovanju filtra. V članku je predlagana metoda izračunavanja filtrske tokovne reference, ki ni občutljiva na motnje v omrežni napetosti. Meritve na enofaznem eksperimentalnem modelu aktivnega filtra so pokazale, da je metoda dinamično učinkovita in stabilna pri obratovanju.
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