Improvement of Power Quality Using Instantaneous Reactive Power Theory for Controlling Shunt Active Filter

Power quality issues related to voltage, current, and frequency variation are under major concern in the distribution system. The mitigation of these power quality issues is performed using different control algorithms. This paper, explains the design of the instantaneous reactive power theory algorithm for shunt compensator, its implementation, and analysis of power quality indices to show the improvement in power quality. The quantification is done using total harmonic distortion, power factor, and efficiency. A MATLAB Simulink model is designed for non-linear load and performance is tabulated and comparison is indicated.