Masoud Jabbari - (power electronics Ph.D. student) and Hosein Farzanefard (faculty member) at Isfahan University of Technology in Isfahan – Iran.

In this paper, a digital time domain method for instantaneous harmonics extraction in active power filters is presented. The proposed recursive method is based on creating an orthogonal space to extract the reactive current. This method reduces the order of computation considerably in comparison with the similar methods in frequency domain.

Active Power Filter, Instantaneous Harmonics Compensation