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Optimal Integration of Dispersed Generation in Medium-Voltage Distribution Networks for Voltage Stability Enhancement
(2022-01-25)
: This study addresses the problem of the maximization of the voltage stability index (λcoefficient) in medium-voltage distribution networks considering the optimal placement and sizing of dispersed generators. The problem ...
Hierarchical Control for DC Microgrids Using an Exact Feedback Controller with Integral Action
(2022-02-06)
This paper addresses the problem of the optimal stabilization of DC microgrids using a
hierarchical control design. A recursive optimal power flow formulation is proposed in the tertiary stage that ensures the global ...
Optimal Design of PV Systems in Electrical Distribution Networks by Minimizing the Annual Equivalent Operative Costs through the Discrete-Continuous Vortex Search Algorithm
(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 ...
Convergence analysis of the triangular-based power flow method for AC distribution grids
(2021-06-30)
This paper addresses the convergence analysis of the triangular-based power flow (PF)
method in alternating current radial distribution networks. The PF formulation is made
via upper-triangular matrices, which enables ...
Use of the rice and corn husk ashes as an innovative pozzolanic material in ceramic tile adhesive production
(2021-11-01)
In this study, the use of agro-industrial waste from rice and corn husk ashes as a pozzolanic addition for cement substitution in the manufacture of ceramic tile adhesive is presented. The cement replacement, at 15%, 20%, ...
La Comisión de la Verdad en Colombia: conocimiento, percepción, eficacia y emociones asociadas
(2021-10-22)
La Comisión de la Verdad en Colombia se estableció a partir del modelo de justicia transicional. Su función es servir como medida de reconocimiento de los hechos violentos durante el conflicto armado, que han dejado más ...
Application of the Crow Search Algorithm to the Problem of the Parametric Estimation in Transformers Considering Voltage and Current Measures
(2022-06-06)
The problem of the electrical characterization of single-phase transformers is addressed in this research through the application of the crow search algorithm (CSA). A nonlinear programming model to determine the series ...
A successive approximations method for power flow analysis in bipolar DC networks with asymmetric constant power terminals
(2022-07-02)
This paper deals with the power flow problem in bipolar direct current distribution networks with unbalanced constant power loads. The effect of the neutral wire is considered in two prominent cases: (i) when the system ...
A fixed-point current injection power flow for electric distribution systems using Laurent series
(2022-07-02)
his paper proposes a new power flow (PF) formulation for electrical distribution systems using the current
injection method and applying the Laurent series expansion. Two solution algorithms are proposed: a Newtonlike ...
Youth unemployment during economic shocks: Evidence from the metal-mining prices super cycle in Chile
(2022-08-19)
We analyze the effect of an exogenous commodity shock on youth long-run unemployment, and the causal mechanisms that underlie this relationship. We use Chile as a study case and the Metal Mining Price Super Cycle between ...
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.