Distributed photovoltaic generator performing reactive power compensation

With the increasing concern in Photovoltaic (PV) as distributed resource (DR) nowadays, the power quality issues associated with PV usage became more and more challenging. Reactive power compensation and voltage regulation are the most important power quality issues, which have to be considered when connecting PV panels to a utility grid. This paper studying how a PV source can achieve a reactive power compensation when connected to a distribution network. The interconnection between DC source (PV) and utility, performed by an inverter. Pulse width modulation (PWM) technique used in this paper to control the inverter to get optimum values for DC link voltage and reactive power at the point of comment coupling (PCC). Matlab/Simulink reveals the effectiveness of the controller.