2007•TecniaOpen access

Power hybrid filter

Teresa Nuñez Z., Rodolfo Moreno M., Jorge Ramos C., Alberto Soto L.

Abstract

This article shows the simulation results obtained from the study of a power electronic system, which significantly improves the performance of the conventional three-phase passive filter that is normally used for power factor compensation of non-linear loads. This improvement is achieved by connecting a three-phase active (AF) filter (or active unit) in series with the passive (PF) filter through three coupling transformers and controlling the active filter in such a way as to force the harmonic components generated by the rectifier to pass through the passive filter. This topology in which a passive filter is combined with an active filter is known as Hybrid Power Filter.

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Available abstract

Key concepts: Active filter, Voltage-controlled filter, Electronic filter topology, All-pass filter, High-pass filter, Butterworth filter, Capacitor-input filter, Filter design