Control of DVR using SPLL strategy in distribution system

This paper discuss control of DVR using SPLL (Software Phased Locked Loop) strategy for compensation of PQ disturbances in power DS (Distribution System) network. Using this control strategy, fundamental reference load voltages are estimated using magnitude of fundamental active and reactive components of source voltages. The SPLL strategy based DVR is modeled in MATLAB R2013b environment using SIMULINK to mitigate voltage related PQ Issues are sag/swell, unbalance and harmonics. The MATLAB based DVR model is used for simulation under dynamic and static conditions. Simulation performance of SPLL based DVR is found that satisfactory performance under time varying linear/non-linear loads.