Analog One-Cycle Control Strategy for Stable Battery Charging in Photovoltaic Systems

João T. de Carvalho Neto; Andrés O. Salazar

doi:10.18618/REP.e202436

Authors

João T. de Carvalho Neto Instituto Federal do Rio Grande do Norte https://orcid.org/0000-0002-4257-3937
Andrés O. Salazar Universidade Federal do Rio Grande do Norte https://orcid.org/0000-0001-5650-3668

DOI:

https://doi.org/10.18618/REP.e202436

Keywords:

Battery Longevity, One-Cycle Control, Photovoltaic Systems, Voltage Stabilization

Abstract

The growing adoption of photovoltaic systems for direct electricity generation from solar radiation has underscored the importance of efficient energy storage solutions. Batteries are the predominant method for storing energy from photovoltaic systems, especially for applications such as electric vehicle (EV) charging. However, these systems face significant challenges, particularly regarding battery longevity, as fluctuations in solar irradiation can lead to harmful voltage spikes. This paper introduces an Analog One-Cycle Control (OCC) strategy designed to mitigate these issues by stabilizing the battery voltage against varying input voltages. The proposed control scheme aims to enhance battery life by preventing damage caused by voltage overshoots. Experimental results demonstrate the effectiveness of the OCC strategy in maintaining steady-state conditions and optimizing power management.

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Author Biographies

João T. de Carvalho Neto, Instituto Federal do Rio Grande do Norte

received the B.S., M.S., and Ph.D. degrees in computing engineering from the Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil, in 2010, 2012, and 2016, respectively. Since 2013, he has been a Professor with the Federal Institute of Education Science and Technology of Rio Grande do Norte (IFRN), Natal. His research interests include efficiency analysis of photovoltaic cells, autonomous and grid-connected photovoltaic systems, power converter design, maximum power point tracking, battery charging, electric vehicles, and linear and nonlinear controllers.

Andrés O. Salazar, Universidade Federal do Rio Grande do Norte

received his bachelor’s degree in electrical engineering in 1981 from the National University of Engineering (UNI), Peru. He received his master’s degree in electrical engineering in 1989 and his Ph.D. degree in 1994, both from the Federal University of Rio de Janeiro (UFRJ), Brazil. He obtained his Ph.D. from the University of Tokyo, Japan. Currently, he has been a professor at the Federal University of Rio Grande do Norte since 1994. His research focuses on the control of electric machines and power converters.

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