Digital repetitive control of a single-phase current active filter

摘要

Shunt active power filters are proved as useful elements to correct the distorted currents caused by nonlinear loads in power distribution systems. This work presents an all digital approach, based on the repetitive control technique, for their control. The design is performed for the particular case of singlephase shunt active filter with a full-bridge boost topology. Several simulation results are also presented to show the good behavior of the closed loop system.