A new method to generate current reference for active power filters

Active power filters are used to eliminate the unwanted harmonics and compensate power factor by injecting equal but opposite compensating currents. The method implemented to generate the current reference is a basic criterion that determines the performance of active power filters. In this paper, a new method, which generates the current reference based on a neural network, without using electronic bandpass filters, is presented. This method is useful for active power filters and capable of eliminating harmonics, compensating power factor, and correcting unbalanced problems simultaneously. Simulation and experimental results are presented, showing that the method is feasible