Prof. Eng. Toader MUNTEANU, Lecturer Eng. Gelu GURGUIATU, Assis. Eng. Ciprian BALANUTA
Rezumat
In aceasta lucrare este prezentata o comparatie intre trei strategii de comanda utilizate pentru controlul filtrelor active de putere (APF) (Teoria pq, teoria dq, si controlul indirect). Principalul criteriu de comparatie este distorsiune
armonica totala de curent (THDI) obtinuta in retea si al-II-lea criteriu este echilibrarea curentilor absorbiti din retea. Curentii armonici sunt prezenti in retea datorita sarcinilor neliniare care sunt din ce in ce mai prezente chiar si la puteri mici. Filtrul activ de putere studiat este unul de tip shunt trifazat cu conductor de neutru.
Cuvinte cheie: filtre active de putere paralelstrategii de control pentru filtre active de putere
Abstract
In this paper is presented a comparison between three control strategies used for active power filters (APF)
(Instantaneous active and reactive power - PQ, Synchronous reference frame - dq and Indirect control - IC) . The main comparison criterion is the current total harmonic distortion (THDI) obtained in grid and the second is the current balanced.
The current harmonics are presented in grid because of non-linear loads which are more and more presented even at low
power. The investigated APF is a shunt three phase and four wire APF.
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