Active Power Filter with Current Balance Capability for TwoPhase Installations

Abstract

The inclusion of high consumption electric loads such as induction stove and electric heaters has made it necessary to install a second phase in many homes. This brings with it the problem of unbalances in the currents of each phase. The present work proposes the use of two inverter topologies acting as active two-phases power filters. In addition to the reactive power compensation capability, these filters can balance active power in each phase for 120-phase and 180-degree twophases systems.