Using LDR as Sensing Element for an External Fuzzy Controller Applied in Photovoltaic Pumping Systems with Variable-Speed Drives
Geraldo Neves De A. Maranhão,
Alaan Ubaiara Brito,
Anderson Marques Leal,
Jéssica Kelly Silva Fonseca,
Wilson Negrão Macêdo
Affiliations
Geraldo Neves De A. Maranhão
Departamento de Ciências Exatas e Tecnológicas, Universidade Federal do Amapá (Unifap), Rod. Juscelino Kubischeck, km 02, Jardim Marco Zero, Macapá, Amapá 68903-419, Brazil
Alaan Ubaiara Brito
Departamento de Ciências Exatas e Tecnológicas, Universidade Federal do Amapá (Unifap), Rod. Juscelino Kubischeck, km 02, Jardim Marco Zero, Macapá, Amapá 68903-419, Brazil
Anderson Marques Leal
Instituto de Tecnologia, Universidade Federal do Pará (UFPA), Rua Augusto Corrêa, 01, Guamá, Belém, Pará 66075-110, Brazil
Jéssica Kelly Silva Fonseca
Instituto de Tecnologia, Universidade Federal do Pará (UFPA), Rua Augusto Corrêa, 01, Guamá, Belém, Pará 66075-110, Brazil
Wilson Negrão Macêdo
Instituto de Tecnologia, Universidade Federal do Pará (UFPA), Rua Augusto Corrêa, 01, Guamá, Belém, Pará 66075-110, Brazil
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.
