New control algorithm for shunt active filters, based on self-tuned vector filter

摘要

A new, improved, method for calculating the reference of a shunt active filter is presented. Thismethod lays on a filter, which is able to extract the main component of a vector signal. This filter actsas a Phase-Locked Loop, capturing a particular frequency. The output of this filter is in phase with thefrequency isolated, and has its amplitude. Simulation and experimental results confirms the validity ofthe proposed algorithm.