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Three-wire investigation of a hybrid power filter with four-switch structure applied to the attenuation of 5th and 7th harmonics with reduced inverter power rating

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4 Author(s)
Laurindo, B.M. ; LEMT - Lab. de Eletron. de potencia e Media Tensao, UFRJ - Univ. Fed. do Rio de Janeiro, Rio de Janeiro, Brazil ; Franca, B.W. ; Rolim, L.G.B. ; Aredes, M.

This paper studies a hybrid filter formed by a single tuned LC filter per phase and a small-rated three-phase active filter, which are directly connected in series without any matching transformer. The required rating of the active filter is much smaller than that of a conventional standalone active filter would be and it comprises a four-switch H-bridge inverter connected to the three-wire system. The analytical procedure is verified by simulation results to confirm the effectiveness of the proposed control scheme.

Published in:

Power Electronics Conference (COBEP), 2011 Brazilian

Date of Conference:

11-15 Sept. 2011