In this document an evaluation of the energy efficiency in Active Power Filters APF, to reduce the Total Harmonic Distortion of current (THDi), in microgrids, through fuzzy logic control methods is done. It will be shown the design of the fuzzy logic controller based on the characteristics of the microgrid signals; it will be focused on three-phase systems using hysteresis commutation techniques to inject the corrective signals. The design of each controller will considerate different kinds fuzzy logic inference systems, and fuzzy logic controllers structure to achieve the optimal design for each case, the data obtained by simulation is referent to the energetic and operational performance of the APF with each controller, these data will be analyzed and compared with standards and technical documents. Finally the optimal fuzzy logic controller obtained will be presented, focusing on both energetic and operational performance, and final suggestions will be presented.