José Fernando Jiménez Vargas

Dr. José Fernando Jiménez Vargas

orcid

Research Focus & Metrics

Academic Career Length

33Years (1994-Present)

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

Representative Publications

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5 April 2018 in Energies
Verified
Journal Article
Open access
PDF file
AGAlonso Gutierrez Galeano
Alonso Gutierrez Galeano
MBMichael Bressan
Michael Bressan
JVJosé Fernando Jiménez Vargas
José Fernando Jiménez Vargas
CACorinne Alonso
Corinne Alonso
This paper presents the study of a simplified approach to model and analyze the performance of partially shaded photovoltaic modules using the shading ratio. This approach integrates the characteristics of shaded area and shadow opacity into the photovoltaic cell model. The studied methodology is intended to improve the description of shaded photovoltaic systems by specifying an experimental procedure to quantify the shadow impact. Furthermore, with the help of image processing, the analysis of the shading ratio provides a set of rules useful for predicting the current–voltage behavior and the maximum power points of shaded photovoltaic modules. This correlation of the shading ratio and shading patterns can contribute to the supervision of actual photovoltaic installations. The experimental results validate the proposed approach in monocrystalline and polycrystalline technologies of solar panels.

1 October 2017 in Engineering Applications of Artificial Intelligence
Verified
Journal Article
Closed access
JCJ.W. Vasquez Capacho
J.W. Vasquez Capacho
ASA. Subias
A. Subias
LTL. Travé-Massuyès
L. Travé-Massuyès
JVJosé Fernando Jiménez Vargas
José Fernando Jiménez Vargas

1 October 2017
Verified
Conference Paper
Open access
HCHarold R. Chamorro
Harold R. Chamorro
ASAndres C. Sanchez
Andres C. Sanchez
AOAmund Overjordet
Amund Overjordet
JVJosé Fernando Jiménez Vargas
José Fernando Jiménez Vargas
FGFrancisco Gonzalez-Longatt
Francisco Gonzalez-Longatt
VSVijay K. Sood
Vijay K. Sood
Due to the increasing use of renewables into the grid connected through power converters, the rotational inertia in power systems has been reducing. Consequently the frequency response requires the activation of the so-called synthetic inertia control. The synthetic inertia control aims to inject an extra power component when the system experiences a frequency disturbance event. In this paper, it is proposed that a distributed dynamic controllers for sharing the synthetic inertia control actions between the various active power converters in the grid for the improvement of the frequency response. It is assumed that a communication structure between the synthetic inertia controllers and the local power converters is involved in the system. The convergence of the control system is reached through a game population theory and the primary frequency control has been improved. The results are validated based on simulation of a two-area test system.

8 August 2025 in Smart Cities
Verified
Journal Article
Open access
PDF file
Augusto Velasquez MendezAugusto Velasquez Mendez
Augusto Velasquez Mendez
Jorge de Jesús Lozoya-SantosJorge de Jesús Lozoya-Santos
Jorge de Jesús Lozoya-Santos
JVJosé Fernando Jiménez Vargas
José Fernando Jiménez Vargas
Urban Living Labs (ULLs) are pivotal for promoting socio-technical innovation in smart cities, yet their role in achieving sustainable urban development remains underexplored. This study addresses this gap by proposing a systematic literature review (SLR) to develop effective implementation strategies. Unlike previous studies focusing on individual aspects of these labs, our holistic approach emphasizes the orchestration of actors and innovative experiment design to co-create value with citizens. By addressing specific issues in current smart city practices—such as the misalignment between technology and community needs and among stakeholders, limited citizen engagement, and the lack of iterative testing environments—the study explores practical strategies for improvement. The proposed strategies illustrate how Urban Living Labs can serve as essential platforms for achieving sustainable and inclusive urban growth through effective socio-technical innovation integration.

1 November 2010
Verified
Conference Paper
Closed access
CGC E Gomez
C E Gomez
JPJ. C. Pascal
J. C. Pascal
JVJosé Fernando Jiménez Vargas
José Fernando Jiménez Vargas
PEP. Esteban
P. Esteban
Verification is one of the most important tasks into the process of systems design. This time-consuming task guarantees the correct functionality of the system. We propose to use HiLeS Designer tool to model and to verify heterogeneous systems in order to reduce functionality risks and time. This tool allows verifying in two ways: formal verification on the model logical sequence and verification by simulation where a virtual prototype on VHDL-AMS is generated from the model. A cane sugar production process is presented as illustrative example.

1 January 2016 in IFAC-PapersOnLine
Verified
Journal Article
Closed access
JVJ.W. Vásquez
J.W. Vásquez
LTL. Travé-Massuyès
L. Travé-Massuyès
ASA. Subias
A. Subias
JVJosé Fernando Jiménez Vargas
José Fernando Jiménez Vargas
CAC. Agudelo
C. Agudelo