Listar Investigaciones por autor "Hernández, Jesus C."
Mostrando ítems 1-20 de 25
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A Comparative Study on Power Flow Methods Applied to AC Distribution Networks with Single-Phase Representation
Montoya, Oscar Danilo; Molina-Cabrera, Alexander; Hernández, Jesus C. (Cartagena de Indias, 2021-10-21)This paper presents a comparative analysis of six different iterative power flow methods applied to AC distribution networks, which have been recently reported in the scientific literature. These power flow methods are (i) ... -
A Discrete-Continuous PSO for the Optimal Integration of D-STATCOMs into Electrical Distribution Systems by Considering Annual Power Loss and Investment Costs
Grisales-Noreña, Luis Fernando; Montoya, Oscar Danilo; Hernández, Jesus C.; Ramos-Paja, Carlos Andres; Perea-Moreno, Alberto-Jesus (Cartagena de Indias, 2022-07-14)Currently, with the quick increase in global population, the energetic crisis, the environmental problematic, and the development of the power electronic devices generated the need to include new technologies for supporting ... -
A mixed-integer conic formulation for optimal placement and dimensioning of DGs in DC distribution networks
Molina-Martin, Federico; Montoya, Oscar Danilo; Grisales-Noreña, Luis Fernando; Hernández, Jesus C. (Cartagena de Indias, 2021-01-14)The problem of the optimal placement and dimensioning of constant power sources (i.e., distributed generators) in electrical direct current (DC) distribution networks has been addressed in this research from the point of ... -
A mixed-integer convex model for the optimal placement and sizing of distributed generators in power distribution networks
Gil-González, Walter; Garcés, Alejandro; Montoya, Oscar Danilo; Hernández, Jesus C. (Cartagena de Indias, 2021-01-11)The optimal placement and sizing of distributed generators is a classical problem in power distribution networks that is usually solved using heuristic algorithms due to its high complexity. This paper proposes a different ... -
A mixed-integer nonlinear programming model for optimal reconfiguration of DC distribution feeders
Montoya, O.D.; Gil-González, Walter; Hernández, Jesus C.; Giral-Ramírez, Diego Armando; Medina-Quesada, A. (Cartagena de Indias, 2020-08-27)This paper deals with the optimal reconfiguration problem of DC distribution networks by proposing a new mixed-integer nonlinear programming (MINLP) formulation. This MINLP model focuses on minimising the power losses in ... -
A second-order cone programming reformulation of the economic dispatch problem of bess for apparent power compensation in ac distribution networks
Montoya, Oscar Danilo; Gil-González, Walter; Martin Serra, Federico; Hernández, Jesus C.; Molina-Cabrera, Alexander (Cartagena de Indias, 2020-10-14)The problem associated with economic dispatch of battery energy storage systems (BESSs) in alternating current (AC) distribution networks is addressed in this paper through convex optimization. The exact nonlinear programming ... -
An approximate mixed-Integer convex model to reduce annual operating costs in radial distribution networks using STATCOMs
Montoya, Oscar Danilo; Alvarado-Barrios, Lázaro; Hernández, Jesus C. (Cartagena de Indias, 2021-12-13): The problem of optimal siting and sizing of distribution static compensators (STATCOMs) is addressed in this research from the point of view of exact mathematical optimization. The exact mixed-integer nonlinear programming ... -
An Efficient EMS for BESS in Monopolar DC Networks with High Penetration of Renewable Generation: A Convex Approximation
Grisales-Noreña, Luis Fernando; Montoya, Oscar Danilo; Hernández, Jesus C. (Cartagena de IndiasCampus Tecnológico, 2023-01-26)This research presents an efficient energy management system (EMS) for battery energy storage systems (BESS) connected to monopolar DC distribution networks which considers a high penetration of photovoltaic generation. ... -
Control of Photovoltaic Plants Interconnected via VSC to Improve Power Oscillations in a Power System
Medina-Quesada, Ángeles; Gil-González, Walter; Montoya, Oscar Danilo; Molina-Cabrera, Alexander; Hernández, Jesus C. (Cartagena de Indias, 2022)This paper presents an integrated methodology applied to photovoltaic (PV) plants for improving the dynamic performance of electric power systems. The proposed methodology is based on primary frequency control, which adds ... -
Derivative-Free Power Flow Solution for Bipolar DC Networks with Multiple Constant Power Terminals
Medina-Quesada, Ángeles; Montoya, Oscar Danilo; Hernández, Jesus C. (Cartagena de Indias, 2022)This paper analyzes the power flow solution in bipolar direct current networks with radial structures considering multiple monopolar and bipolar constant power loads. The electrical configuration of the bipolar DC grid ... -
Direct Power Control Design for Charging Electric Vehicles: A Passivity-Based Control Approach
Montoya, Oscar; Gil-González, Walter; Sierra, Federico; Domínguez Jiménez, Juan Antonio; Campillo Jiménez, Javier Eduardo; Hernández, Jesus C. (Cartagena de Indias, 2020-11-25)This paper explores the controller's design for charging batteries for electric vehicle applications using the direct power representation of the system. These controllers' design is made via passivity-based control (PBC) ... -
Efficient Integration of PV Sources in Distribution Networks to Reduce Annual Investment and Operating Costs Using the Modified Arithmetic Optimization Algorithm
Montoya, Oscar Danilo; Giral-Ramírez, Diego Armando; Hernández, Jesus C. (Cartagena de Indias, 2022)The optimal integration of photovoltaic generation systems is a challenge for distribution utilities since these devices have a direct impact on company finances due to the large amount of investment required at the beginning ... -
Efficient operative cost reduction in distribution grids considering the optimal placement and sizing of d-statcoms using a discrete-continuous vsa
Montoya, Oscar Danilo; Gil-González, Walter; Hernández, Jesus C. (Cartagena de IndiasCampus TecnológicoIngeniería Eléctrica, 2021-03-02)The problem of reactive power compensation in electric distribution networks is addressed in this research paper from the point of view of the combinatorial optimization using a new discrete-continuous version of the vortex ... -
Global Optimal Stabilization of MT-HVDC Systems: Inverse Optimal Control Approach
Montoya, Oscar Danilo; Gil-González, Walter; Martin Serra, Federico; De Angelo, Cristian Hernan; Hernández, Jesus C. (Cartagena de Indias, 2021-11-17)The stabilization problem of multi-terminal high-voltage direct current (MT-HVDC) systems feeding constant power loads is addressed in this paper using an inverse optimal control (IOC). A hierarchical control structure ... -
LQR-Based adaptive virtual inertia for grid integration of wind energy conversion system based on synchronverter model
González, Walter Gil; Montoya, Oscar Danilo; Escobar Mejía, Andrés; Hernández, Jesus C. (Cartagena de Indias, 2021-03-06)This paper proposes adaptive virtual inertia for the synchronverter model implemented in a wind turbine generator system integrated into the grid through a back-to-back converter. A linear dynamic system is developed for ... -
Nonlinear voltage control for three-phase dc-ac converters in hybrid systems: An application of the pi-pbc method
Serra, Federico M.; Fernández, Lucas M.; Montoya, Oscar D.; Gil-González, Walter; Hernández, Jesus C. (Cartagena de Indias, 2020-05-20)In this paper, a proportional-integral passivity-based controller (PI-PBC) is proposed to regulate the amplitude and frequency of the three-phase output voltage in a direct-current alternating-current (DC-AC) converter ... -
Operating cost reduction in distribution networks based on the optimal phase-swapping including the costs of the working groups and energy losses
Montoya Giraldo, Oscar Danilo; Alarcon-Villamil, Jorge Alexander; Hernández, Jesus C. (Cartagena de Indias, 2021-07-27)The problem of optimal phase-balancing in three-phase asymmetric distribution networks is addressed in this research from the point of view of combinatorial optimization using a master– slave optimization approach. The ... -
Optimal Design of PV Systems in Electrical Distribution Networks by Minimizing the Annual Equivalent Operative Costs through the Discrete-Continuous Vortex Search Algorithm
Cortés-Caicedo, Brandon; Molina-Martin, Federico; Grisales-Noreña, Luis Fernando; Montoya, Oscar Danilo; Hernández, Jesus C. (Cartagena de Indias, 2022-01-23): This paper discusses the minimization of the total annual operative cost for a planning period of 20 years composed by the annualized costs of the energy purchasing at the substation bus summed with the annualized ... -
Optimal Pole-Swapping in Bipolar DC Networks Using Discrete Metaheuristic Optimizers
Montoya, Oscar Danilo; Medina-Quesada, Ángeles; Hernández, Jesus C. (Cartagena de Indias, 2022)Bipolar direct current (DC) networks are emerging electrical systems used to improve the distribution capabilities of monopolar DC networks. These grids work with positive, negative, and neutral poles, and they can transport ... -
Optimal selection and location of bess systems in medium-voltage rural distribution networks for minimizing greenhouse gas emissions
Montoya, Oscar Danilo; Gil-González, Walter; Hernández, Jesus C. (Cartagena de Indias, 2020-12-09)This paper explores a methodology to locate battery energy storage systems (BESS) in rural alternating current (AC) distribution networks fed by diesel generators to minimize total greenhouse gas emissions. A mixed-integer ...
Universidad Tecnológica de Bolívar - 2017 Institución de Educación Superior sujeta a inspección y vigilancia por el Ministerio de Educación Nacional. Resolución No 961 del 26 de octubre de 1970 a través de la cual la Gobernación de Bolívar otorga la Personería Jurídica a la Universidad Tecnológica de Bolívar.