Published Paper Details:

The electrical and electronic equipments, when subjected to any of the power quality issues, are highly prone to misbehave which leads to the failure of those equipments. This paper analyses the power quality issues and means to improve the power quality in three-phase PV (Photo Voltaic) sourced micro grid using unified power quality conditioner (UPQC). The proposed UPQC comprises of active filter on the shunt side and dynamic voltage restorer on the series side. A integrated control of instantaneous reactive power and synchronous reference frame theories are employed to formulate control reference signals for the UPQC. The simulation results proved that the proposed UPQC compensated power quality issues such as voltage sag, harmonics, voltage imbalance in the micro grid system. The comparison is made of various individual compensation devices such as shunt active filters , dvr and upqc. The proposed system is simulated in MATLAB/Simulink software.