Electrical PV array reconfiguration strategy for energy extraction improvement in grid-connected PV systems
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Rights accessOpen Access
This paper applies a dynamical electrical array reconfiguration (EAR) strategy on the photovoltaic (PV) generator of a grid-connected PV system based on a plant-oriented configuration, in order to improve its energy production when the operating conditions of the solar panels are different. The EAR strategy is carried out by inserting a controllable switching matrix between the PV generator and the central inverter, which allows the electrical reconnection of the available PV modules. As a result, the PV system exhibits a self-capacity for real-time adaptation to the PV generator external operating conditions and improves the energy extraction of the system. Experimental results are provided to validate the proposed approach.
CitationVelasco, G. [et al.]. Electrical PV array reconfiguration strategy for energy extraction improvement in grid-connected PV systems. "IEEE transactions on industrial electronics", Novembre 2009, vol. 56, núm. 11, p. 4319-4331.