Power factor correction and zero voltage regulation in distribution system using DSTATCOM

This paper presents an implementation of three-phase distribution static compensator (DSTATCOM) using single phase p-q theory based control algorithm for functions of DSTATCOM in power factor correction (PFC) zero voltage regulation (ZVR) mode under nonlinear distribution system. A single phase p-q theory based control algorithm is used for extraction of fundamental active and reactive power components of load currents. These components are used for estimation of reference source currents. A prototype of DSTATCOM is developed in three phase four wire system and its real time performance is studied using a digital signal processor. The performance of DSTATCOM is found satisfactory with proposed control algorithm for nonlinear distribution system.