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Sensors 2015, 15(9), 24445-24457; doi:10.3390/s150924445

Using LDR as Sensing Element for an External Fuzzy Controller Applied in Photovoltaic Pumping Systems with Variable-Speed Drives

1
Departamento de Ciências Exatas e Tecnológicas, Universidade Federal do Amapá (Unifap), Rod. Juscelino Kubischeck, km 02, Jardim Marco Zero, Macapá, Amapá 68903-419, Brazil
2
Instituto de Tecnologia, Universidade Federal do Pará (UFPA), Rua Augusto Corrêa, 01, Guamá, Belém, Pará 66075-110, Brazil
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Academic Editor: Vittorio M. N. Passaro
Received: 17 July 2015 / Revised: 7 September 2015 / Accepted: 14 September 2015 / Published: 22 September 2015
(This article belongs to the Section Physical Sensors)
View Full-Text   |   Download PDF [1253 KB, uploaded 22 September 2015]   |  

Abstract

In the present paper, a fuzzy controller applied to a Variable-Speed Drive (VSD) for use in Photovoltaic Pumping Systems (PVPS) is proposed. The fuzzy logic system (FLS) used is embedded in a microcontroller and corresponds to a proportional-derivative controller. A Light-Dependent Resistor (LDR) is used to measure, approximately, the irradiance incident on the PV array. Experimental tests are executed using an Arduino board. The experimental results show that the fuzzy controller is capable of operating the system continuously throughout the day and controlling the direct current (DC) voltage level in the VSD with a good performance. View Full-Text
Keywords: fuzzy controller; photovoltaic system; photovoltaic water pumping; variable-speed drive fuzzy controller; photovoltaic system; photovoltaic water pumping; variable-speed drive
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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

Maranhão, G.N.D.A.; Brito, A.U.; Leal, A.M.; Fonseca, J.K.S.; Macêdo, W.N. Using LDR as Sensing Element for an External Fuzzy Controller Applied in Photovoltaic Pumping Systems with Variable-Speed Drives. Sensors 2015, 15, 24445-24457.

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