MPPT Algorithm Based on PV Cell Temperature, Using Open Circuit Voltage  Measurement, Combined With PV Cell Cooling

Nuno M. M. da Rocha; Lucas L. Brighenti; Júlio César Passos; Denizar C. Martins

doi:10.18618/REP.2018.4.2804

Authors

Nuno M. M. da Rocha Federal University of Santa Catarina, Electrical Engineering Department, INEP, Florianópolis – Santa Catarina, Brazil
Lucas L. Brighenti Federal University of Santa Catarina, Electrical Engineering Department, INEP, Florianópolis – Santa Catarina, Brazil
Júlio César Passos Federal University of Santa Catarina, Mechanical Engineering Department, LEPTEN, Florianópolis – Santa Catarina, Brazil
Denizar C. Martins Federal University of Santa Catarina, Electrical Engineering Department, INEP, Florianópolis – Santa Catarina, Brazil

DOI:

https://doi.org/10.18618/REP.2018.4.2804

Keywords:

MPP, MPPT, photovoltaic, Photovoltaic Cell Cooling, Photovoltaic Cell Temperature

Abstract

As an increase of Photovoltaic (PV) cell temperature originates a negative effect, the application of a PV cell cooling system allows a performance improvement. Therefore, the present work aims to investigate the performance of a PV module transformed into a Photovoltaic/Thermal (PV/T) module, producing electrical and thermal energy simultaneously, while concurrently establishing a cooling system for the PV cells. The PV conversion efficiency is affected by modifications of the operation conditions particularly the ones concerning PV cell temperature and radiation due to the displacement of the system Maximum Power Point (MPP). In the present work the Maximum Power Point Tracking (MPPT) is performed using an algorithm based exclusively on PV cell temperature information with the particularity that the temperature measurements are perform without the use of any temperature sensors. The studied system performance is compared to a conventional PV using the same MPPT algorithm. The results show that the cooling system associated to the MPPT temperature based algorithm provides a bigger energy output leading to higher economic savings. In addition, it can help simplifying the MPPT algorithm by allowing the use of slower dynamic.

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Author Biographies

Nuno M. M. da Rocha, Federal University of Santa Catarina, Electrical Engineering Department, INEP, Florianópolis – Santa Catarina, Brazil

has a Mechanical Engineer degree (2010) and a master's degree in sustainable energy (2012) both from Instituto Superior de Engenharia do Porto (ISEP). Currently is PhD student at the Federal University of Santa Catarina (UFSC) at the Institute of Power Electronics (INEP). His areas of interest are renewable and sustainable energy, thermal systems and energy efficiency.

Lucas L. Brighenti, Federal University of Santa Catarina, Electrical Engineering Department, INEP, Florianópolis – Santa Catarina, Brazil

holds a degree and a master's degree from the State University of Santa Catarina (UDESC) (2011 and 2014). He is currently a PhD student at UFSC, developing activities at INEP. He has experience in electrical engineering, with emphasis on electric power systems.

Júlio César Passos, Federal University of Santa Catarina, Mechanical Engineering Department, LEPTEN, Florianópolis – Santa Catarina, Brazil

mechanical engineer degree from polytechnic school of Federal University of Rio de Janeiro (UFRJ) (1980), master in mechanical engineering from coppe-UFRJ (1984), PhD from the University of Paris Vi (pierre et marie curie) (1989). Professor at the mechanical engineering department of UFSC. Member of the board of trustees of Foundation for Research and University Extension (FAPEU) (2016-2020). He acts as a researcher, master's and PhD advisor in the area of thermal sciences.

Denizar C. Martins, Federal University of Santa Catarina, Electrical Engineering Department, INEP, Florianópolis – Santa Catarina, Brazil

has a bachelor's degree with emphasis in electricity (1978), a degree in electrical engineering (1978), a master's degree in electrical engineering (1981) from UFSC and PhD in electrical engineering from the Institut National Polytechnique de Toulouse, France (1986). He is currently leader of the INEP and professor of the department of electrical engineering of UFSC. He has experience in electrical engineering, with emphasis on power electronics, working mainly on the following topics: static converters cc-cc and cc-ca simulation, power factor correction, power quality, electronic power processing, active distribution and distributed generation.

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