Design Methodology for LED Lighting Systems Based on Photo-Electro-Thermal Interrelationships

Authors

  • Leandro Chies Federal University of Santa Maria, Santa Maria – RS, Brasil
  • Maicol F. de Melo Federal University of Santa Maria, Santa Maria – RS, Brasil
  • William D. Vizzotto Federal University of Santa Maria, Santa Maria – RS, Brasil
  • Rudimar Spannemberg Jr. Federal University of Santa Maria, Santa Maria – RS, Brasil
  • Vitor C. Bender Federal University of Santa Maria, Santa Maria – RS, Brasil
  • Marco A. Dalla Costa Federal University of Santa Maria, Santa Maria – RS, Brasil

DOI:

https://doi.org/10.18618/REP.2018.3.2781

Keywords:

Design Methodology, Light-Emitting Diodes, Photo-Electro-Thermal Theory

Abstract

This paper presents a design methodology for LED (Light-Emitting Diode) lighting systems based on photo-electro-thermal (PET) interrelationships. The proposed methodology uses only LED datasheet information, which makes experimental tests unnecessary to obtain the design parameters. The methodology allows identifying several design specifications, such as, luminous efficacy, heatsink thermal resistance, LED junction temperature and forward current, essential aspects to produce a satisfactory lighting system. Thus, it is possible to define the lighting system features based on standards requirements to obtain the desired system results. Initially, a review of several PET theories is presented, and a new mathematical analysis is performed, in order to highlight the main contributions of the methodology. An LED bulb lamp design is presented to exemplify the methodology. Finally, experimental tests with the proposed LED lamp resulted in a luminous flux of 1271 lm, with a luminous efficacy of 112 lm/W, and LED junction temperature of 79.67 ºC. The errors between calculated and measured luminous flux, luminous efficacy and LED junction temperature were 3.70%, 1.88%, and 3.85%, respectively. These results validate the proposed methodology.

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Author Biographies

Leandro Chies, Federal University of Santa Maria, Santa Maria – RS, Brasil

born in Caxias do Sul, Brazil, in 1983. He received the B.S. degree in automation and control engineering from University of Caxias do Sul, in 2013 and M.Sc. degree in electrical engineering from the Federal University of Santa Maria, Brazil, in 2016. Since 2015 he is Professor at the Federal Institute of Santa Catarina, Brazil. His research interests include light-emitting-diode systems and image processing.

Maicol F. de Melo, Federal University of Santa Maria, Santa Maria – RS, Brasil

born in Cacequi, Brazil, in 1989. He received the B.S. and M.Sc. degrees in electrical engineering from the Federal University of Santa Maria, Santa Maria, in 2012 and 2014, respectively. Currently, he has been working toward the Ph.D. in the Gedre - Intelligence in Lighting research group. Since 2015 he is Professor at the Federal Institute Sul-rio-grandense, Brazil. His research interests include dc/dc converters, power factor correction stages, lighting systems based on LEDs, renewable energy systems and integration of renewable energies and lighting systems.

William D. Vizzotto, Federal University of Santa Maria, Santa Maria – RS, Brasil

born in 1993. He received the B.S. degree in electrical engineering from the Federal University of Santa Maria in 2017. He is researcher at Gedre - Intelligence in Lighting research group since 2011. He has as main research topics: intelligence in lighting, DC-DC converters, LEDs, RGB LEDs, renewable energies and street lighting.

Rudimar Spannemberg Jr., Federal University of Santa Maria, Santa Maria – RS, Brasil

born in Santa Maria, Brazil, in 1993. He is currently pursuing the Degree in electrical engineering at the Federal University of Santa Maria. He have been carrying out the activities of research with the Gedre - Intelligence in Lighting research group since 2014. His main areas of interest are LEDs, LED drivers, street lighting, renewable energy and DC-DC converters.

Vitor C. Bender, Federal University of Santa Maria, Santa Maria – RS, Brasil

born in Panambi, Brazil, in 1987. He received the B.S. degree in Electrical Engineering from Regional Northwest University of Rio Grande do Sul State (UNIJUI) in 2011 and M.Sc. and PhD. degree from the Federal University of Santa Maria (UFSM) in 2012 and 2015, respectively. From 2015 to 2017 he was a professor at the Federal University of Pampa (UNIPAMPA). Currently, he is a professor in Federal University of Santa Maria where he has been working as researcher with GEDRE – Intelligence in Lighting Research Group, at Santa Maria, Rio Grande do Sul, Brazil. His research interests include: lighting systems, electronic ballasts, LED and OLED drivers, LED and OLED modeling and thermal design.

Marco A. Dalla Costa, Federal University of Santa Maria, Santa Maria – RS, Brasil

born in Santa Maria, Brazil, in 1978. He received the B.S. and M.Sc. degrees in electrical engineering from the Federal University of Santa Maria, Brazil, in 2002 and 2004, respectively, and the Ph.D. degree (with honors) in electrical engineering from the University of Oviedo, Gijón, Spain, in 2008. From 2008 to 2009 he was Associate Professor at the Universidade de Caxias do Sul, Brazil. Since 2009 he is Professor at the Federal University of Santa Maria, Brazil. Dr. Dalla Costa is coauthor of more than 50 journal papers and more than 100 international conference papers, and is holder of 2 Spanish patents. He is also the Vice-Chair of the Industrial Lighting and Displays Committee (ILDC) from the IEEE Industry Applications Society and serves as reviewer for several IEEE Journal and Conferences in the field of power electronics. His research interests include dc/dc converters, power factor correction, lighting systems, high-frequency electronic ballasts, discharge-lamp modeling, light-emitting-diode systems, renewable energy systems, solid state transformers, and visible light communications.

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Published

2018-09-30

How to Cite

[1]
L. Chies, M. F. de Melo, W. D. Vizzotto, R. S. Jr., V. C. Bender, and M. A. D. Costa, “Design Methodology for LED Lighting Systems Based on Photo-Electro-Thermal Interrelationships”, Eletrônica de Potência, vol. 23, no. 3, pp. 302–309, Sep. 2018.

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Section

Original Papers