Comparative analysis of two simulation models for reactive power compensation in grid tied single-phase photovoltaic systems

Power losses, voltage losses, consumers being fed energy with reduced quality are often caused by improper or even lack of control of reactive power. Thus, reactive power compensation is vital for electrical systems connected to the grid. In this paper a comparative analysis of two simulation models regarding reactive power compensation in grid connected single-phase photovoltaic (PV) systems is presented. One model considers compensation with a static synchronous compensator while the other - by controlling the PV system's inverter. Obtained results exhibit that reactive power control and compensation can be achieved by both strategies, but control of PV's inverter is more appealing as it does not require additional devices to be incorporated in its system.