Development of a Didactic Workbench Using Real-Time Monitoring System for Teaching  of Photovoltaic Systems

Sérgio A. Oliveira da Silva; Danilo H. Wollz; Leonardo P. Sampaio

doi:10.18618/REP.2018.3.2793

Authors

Sérgio A. Oliveira da Silva Federal University of Technology – UTFPR-CP, Department of Electrical Engineering, Cornélio Procópio – PR - Brazil
Danilo H. Wollz Federal University of Technology – UTFPR-CP, Department of Electrical Engineering, Cornélio Procópio – PR - Brazil
Leonardo P. Sampaio Federal University of Technology – UTFPR-CP, Department of Electrical Engineering, Cornélio Procópio – PR - Brazil

DOI:

https://doi.org/10.18618/REP.2018.3.2793

Abstract

This paper presents the deployment of a didactic workbench intended to support theoretical and practical studies addressed in subjects of undergraduate and postgraduate electrical engineering courses involving photovoltaic (PV) systems. The proposed system operates in real-time and is composed of a computational graphic interface operating in conjunction with a double-stage PV system connected to the power grid. Besides the PV array, the PV system consists of a step-up DC-DC converter, intended to track the maximum power point, and a current-controlled full-bridge inverter, intended to inject the energy produced by the PV array into the grid. The monitoring system allows to perform the following tasks: i. assist the performance evaluation of maximum power point tracking techniques tied to projects; ii. visualize the measured PV array magnitudes (voltage, current and power), as well as the estimated ones calculated from the PV array mathematical model and from the real measured values of solar irradiation and temperature; iii. analyze electric power quality indicators, based on the grid voltage and current magnitudes, and others. Experimental results are presented with the objective of testing and evaluating the versatility of the proposed didactic workbench applied in an educational environment.

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Author Biographies

Sérgio A. Oliveira da Silva, Federal University of Technology – UTFPR-CP, Department of Electrical Engineering, Cornélio Procópio – PR - Brazil

was born in Joaquim Távora, Brazil, in 1964. He received the B.S. and M.S. degrees in electrical engineering from Federal University of Santa Catarina (UFSC), Florianopolis, SC, Brazil, in 1987 and 1989, respectively. He received Ph.D. degree from Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, Brazil, in 2001. Since 1993, he has been with the Electrical Engineering Department of Federal University of Technology (UTFPR-CP), Cornélio Procópio, PR, Brazil, where he is currently a full Professor of Electrical Engineering and coordinator of the Laboratory of Power Electronics, Power Quality and Renewable Energies (LEPQER). His research interests are related to power electronics applications involving UPS systems, active power-line filters, photovoltaic systems, control systems, power quality and educational tool for power electronics teaching. He is member of Brazilian Power Electronics Society and IEEE Industrial Electronics Society.

Danilo H. Wollz, Federal University of Technology – UTFPR-CP, Department of Electrical Engineering, Cornélio Procópio – PR - Brazil

was born in Siqueira Campos, Brazil, in 1991. He received the B.Sc. degree in electrical engineering from the Federal University of Technology – Paraná, Campus of Cornélio Procópio (UTFPR-CP) in 2016. Currently, he is a student of the Master Science course in electrical engineering at Federal University of Technology– Paraná (UTFPR-CP). He is a member of the Laboratory of Power Electronics, Power Quality and Renewable Energies (LEPQER). His interests include renewable energy systems, power quality, active power filters and educational tools applied in power electronics teaching. He is a member of Brazilian Power Electronics Society.

Leonardo P. Sampaio, Federal University of Technology – UTFPR-CP, Department of Electrical Engineering, Cornélio Procópio – PR - Brazil

was born in São José do Rio Preto, SP, Brazil, in 1983. He received the B.Sc., M.Sc. and Ph.D. degrees in electrical engineering from the São Paulo State University, Ilha Solteira, Brazil, in 2008, 2010 and 2013, respectively. Since 2012, he has been Professor at Federal University of Technology, Cornélio Procópio, Brazil. He is member of the Laboratory of Power Electronics, Power Quality and Renewable Energies (LEPQER). His interests include computer programming, education in power electronics, education tools, DC-DC converters, inverters, renewable and alternative energy source, photovoltaic systems, power electronic converters. He is a member of Brazilian Power Electronics Society.

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