PV Systems and Power Quality in Algerian Distribution Grid

Abstract

This paper presents and discusses the monitoring of power quality of the first grid connected PV system in Algeria, installed in the rooftop of Centre de Developpement des Energies Renouvelables in Bouzareah, Algiers. This work is a part of the study of increasing penetration levels of distributed grid-connected photovoltaic (PV) systems in Algerian electrical distribution grid. Theoretically, this will have an impact on the grid that must be considered. The increase of the PV systems in distribution grid induces the consideration of aspects related to safety, protection and power quality. The experimental measurements concerning the active power, reactive power, power factor and total harmonic distortion (current and voltage) were performed at Point of Common Coupling (PCC) of the considered PV system. Generally, this PV system has negligible impact on the local grid; nevertheless, it is a very useful platform to study the power quality in Algerian distribution grid. The measurements were presented and discussed for different days, in order to observe the power quality behavior at PCC of CDER PV system. We find that the injection of PV power decreases the total harmonic distortion (THD) current of the electrical line.