Voltage Regulation Performance of a Shunt Active Filter Intended for Installation on a Power Distribution System

This paper discusses a shunt active filter intended for installation on a power distribution system, with focus on voltage regulation capability. The active filter has capability of regulate the distribution-line voltage by means of adjusting its reactive power. Theoretical analysis investigates the dynamic performance of harmonic damping and voltage regulation as well as computer simulation does. As a result, it is clarified that a harmonic detection error may increase the voltage fluctuations in transient states. A new compensation method is proposed to reduce the voltage fluctuations in transient states. Experimental results show that the proposed method makes it possible to reduce the voltage fluctuation in transient states