A new approach with modeling the combination of unified power quality conditioner and photovoltaic arrays

This paper presents a system that provides photovoltaic generation as well as the functions of a unified power quality conditioner (UPQC). The system can be controlled for current harmonics and reactive power compensation simultaneously by using a converter operating as active shunt filter. The other converter is used as active series filter and it compensates voltage harmonics or voltage sags and swells. Using only an inverter in photovoltaic energy conversion process, the system presents increased efficiency when compared to the conventional systems. Simulation results demonstrate the good performance of the proposed configuration. Experimental results corresponding to the operation of the series filter as voltage sag compensator are presented. The purpose of this paper is a design a photovoltaic generation system for connection in three-phase system using only a DC/AC inverter. The proposed system increases the conversion efficiency and also provides useful function any time, operating as power supply as well as harmonic and reactive power compensator when the sun is available. The proposed system modeling and simulation PSCAD/EMTDC is used.