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Energies 2016, 9(1), 2; doi:10.3390/en9010002

Reconfiguration of Urban Photovoltaic Arrays Using Commercial Devices

1
Departamento de Electrónica y Telecomunicaciones, Instituto Tecnológico Metropolitano, Cra. 31 No. 54-10, Medellín 050013, Colombia
2
Escuela de Ingenierías Eléctrica, Electrónica y de Telecomunicaciones, Universidad Industrial de Santander, Cra. 27 Calle 9, Bucaramanga 680002, Colombia
3
Departamento de Energía Eléctrica y Automática, Universidad Nacional de Colombia, Cra. 80 No. 65-223, Medellín 050041, Colombia
*
Author to whom correspondence should be addressed.
Academic Editor: Narottam Das
Received: 19 October 2015 / Revised: 1 December 2015 / Accepted: 7 December 2015 / Published: 22 December 2015
(This article belongs to the Special Issue Nano-Structured Solar Cells)
View Full-Text   |   Download PDF [3302 KB, uploaded 22 December 2015]   |  

Abstract

A recent approach to mitigate the adverse effects of photovoltaic (PV) arrays operating under mismatching conditions is the dynamic electrical reconfiguration of the PV panels. This paper introduces a procedure to determine the best configuration of a PV array connected in a series-parallel structure without using complex mathematical models. Such a procedure uses the experimental current vs. voltage curves of the PV panels, which are composed of multiple PV modules, to construct the power vs. voltage curves of all of the possible configurations to identify the optimal one. The main advantage of this method is the low computational effort required to reconstruct the power vs. voltage curves of the array. This characteristic enables one to implement the proposed solution using inexpensive embedded devices, which are widely adopted in industrial applications. The proposed method, and its embedded implementation, were tested using a hardware-in-the-loop simulation of the PV system. Finally, the real-time operation and benefits of the proposed solution are illustrated using a practical example based on commercial devices. View Full-Text
Keywords: optimal configuration; reconfiguration; series-parallel arrays; embedded systems; partial shading; mismatching conditions; hardware in the loop optimal configuration; reconfiguration; series-parallel arrays; embedded systems; partial shading; mismatching conditions; hardware in the loop
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Serna-Garcés, S.I.; Bastidas-Rodríguez, J.D.; Ramos-Paja, C.A. Reconfiguration of Urban Photovoltaic Arrays Using Commercial Devices. Energies 2016, 9, 2.

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