Shunt active power filter with reduced number of inductors

In this paper is presented a shunt active power filter with a reduced number of inductors for harmonic and reactive power compensation in three-phase three-wire electrical systems. The proposed configuration is based on two single-phase shunt active power filters connected to a three-phase three-wire grid. The two single-phase cells can be achieved by a three-leg singlephase to single-phase ac-dc-ac converter, therefore resulting in a three-phase shunt active power filter with one inductor less than the typical three-phase active power filter. As a result the proposed configuration has reduced losses and weight.