A novel control method for wideband harmonic compensation

In this paper a novel control method for wideband harmonic compensation with a voltage source shunt active power filter is presented. The effective filtering of the low order harmonics is achieved with an active filter together with a simple computational control delay compensation method. The filtering performance with high order harmonics is improved with a small passive high pass filter connected parallel to the active filter. The control system is presented and the system performance examined through a transfer function model. The measurement results are presented and compared to other methods. The benefits of the proposed system can be clearly seen in the results.