Hardware realization of a single-phase-modified P-Q theory-based shunt active power filter for harmonic compensation

Abstract

This paper aims the harmonic compensation of inductive load using a single-phase Shunt Active Power Filter (SAPF). The instantaneous reactive power (p-q) theory is used in the controller to control the SAPF. This theory applies effectively for both, single- and three-phase systems. This theory is modified to achieve effective performance in single-phase systems. The system proposed has been simulated and analyzed in MATLAB, and then a lab prototype is developed and controlled using Arduino-based microcontroller. The response of the proposed system to variation in load is fast and takes care of sudden switching on/off.