On the harmonic compensation in nonsinusoidal systems

Six methods for power factor correction in nonsinusoidal systems are analyzed. The conventional methods based on shunt capacitance and LC tuned filters are compared with techniques relying on the use of solid-state compensators or active filters. It is proved that the best strategy, which minimizes voltage distortion, power system losses, and the interference with communication systems, is not necessarily obtained when the power factor is unity.<>