Electrical PV Array Reconfiguration Strategy for Energy Extraction Improvement in Grid-Connected PV Systems

By G. Velasco-Quesada, F. Guinjoan, R. Piqué-López, M. Roman-Lumbreras, A. Conesa-Roca. IEEE transactions on industrial electronics (1982. Print), 2009

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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.

Subfields: Control and Systems Engineering, Electrical and Electronic Engineering, Renewable Energy, Sustainability and the Environment

View Paper: https://www.semanticscholar.org/paper/616f4899411aaad96a1f06bad8da5ea64e0247e0

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Citations in the corpus

Control and Circuit Techniques to Mitigate Partial Shading Effects in Photovoltaic Arrays (2012, background): “The partial shading effects can be alleviated by employing different array configurations for interconnecting PV modules [40], [41], [64].”
Optimal Photovoltaic Array Reconfiguration to Reduce Partial Shading Losses (2013, background): “This reduces the required number of switches to half of what was proposed in [24]–[26] for full reconfigurable photovoltaic array (FRPVA).”
A Maximum Power Point Tracking Technique for Partially Shaded Photovoltaic Systems in Microgrids (2013, background): “Similarly, dynamic electrical array reconfiguration is proposed [31] to improve the PV energy production during partial shadowing conditions.”