Vlad SURU, Alexandru BITOLEANU, Mihaela POPESCU, Mihaita LINCA
Rezumat
In functionarea filtrelor active atat curentul de la iesire cat si tensiunea din circuitul de curent continuu trebuie
reglate la valorile instantanee dorite prin intermediul buclelor de reglare. Uzual, regulatoarele din componenta acestor bucle sunt regulatoare de tip PI, atat pentru reglarea tensiunii cat si a curentului, desi pentru reglarea curentului sunt de asemenea
utilizate regulatoare cu histerezis. Aceasta lucrare isi propune verificarea atat prin simulare, cat si experimental a algoritmului de filtrare destinat unui filtru activ paralel, respectiv, al dependentei performantelor obtinute de valoarea tensiunii din circuitul de curent continuu al filtrului.
Cuvinte cheie: filtre activebucle de reglaredistorsiune armonica.
Abstract
The active filter operation involves the use of control loops to obtain both the instantaneous value of the
compensating current and the voltage on the compensation capacitor. Usually, PI controllers are used for these loops for both current and voltage regulation, although for the current regulation, hysteresis regulators are also used. This paper aims to
validate the filtering algorithm for a parallel active filter by simulation and experimental study, and the dependence between the filtering performance and the voltage across the compensating capacitor.
Keywords: active filtersvoltage control loopharmonic distorsion
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