Rafael Guzmán Sepúlveda

Dr. Rafael Guzmán Sepúlveda


Research Focus & Metrics

Academic Career Length

4Years (2023-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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11 July 2023 in Sustainability
Verified
Journal Article
Open access
PDF file
SMSalvador Merino
Salvador Merino
JMJavier Martinez
Javier Martinez
FGF. Guzmán
F. Guzmán
JLJuan de Dios Lara
Juan de Dios Lara
RSRafael Guzmán Sepúlveda
Rafael Guzmán Sepúlveda
MSMariano Sidrach
Mariano Sidrach
Urban transport systems play a major role in the development of today’s societies, but they require technological changes to reduce their environmental impact. The problem lies in their level of autonomy, which is why electrical energy production systems are proposed for self-consumption, efficiently feeding their accumulators. As the energy provided by photovoltaic installations has lower recharge speeds, conventional systems with high transfer amperage and higher voltage are required. For this reason, solar installations are used for additional services and to support their autonomy. The present work tries to find the best solution for both constant voltage and peak current systems. Once found, these solutions will be applied in real time for the dynamic recharging of battery packs, trying to achieve vehicles that are progressively more energetically autonomous. To solve these situations, a new computational method for calculating voltage and amperage has been developed in this work, based on Dijkstra’s minimum path search algorithm on graph theory, adapted to electrical circuits. Once this algorithm has been established, the panel performance analysis sensors, developed at the University of Malaga, are combined with different electronic solutions described in this article (Wi-Fi relay devices using esp8266 chips or feeding these relays through panels and establishing the voltage drop to switch the connection), achieving precise and sufficiently fast solutions at very low cost. Both series and parallel transitions are possible, depending on the type of energy generation required. The theoretical solutions using Minkowski paths, analyzed in the past, have been simulated and subsequently constructed in this paper, indicating the diagrams necessary for their realization.

1 January 2024
Verified
Conference Paper
Open access
PDF file
RSRafael Guzmán Sepúlveda
Rafael Guzmán Sepúlveda
LGLaia Miravet Garret
Laia Miravet Garret
SMShiran Perera Mohamed
Shiran Perera Mohamed
FNFrancisco Guzmán Navarro
Francisco Guzmán Navarro
RVRafael Alba Vega
Rafael Alba Vega