Listar Investigaciones por título
Mostrando ítems 938-957 de 1405
-
On the mathematical modeling for optimal selecting of calibers of conductors in DC radial distribution networks: An MINLP approach
(Cartagena de Indias, 2021-01-29)This paper addresses the problem of optimal conductor selection in direct current (DC) distribution networks with radial topology. A nonlinear mixed-integer programming model (MINLP) is developed through a branch-to-node ... -
On the Matricial Formulation of Iterative Sweep Power Flow for Radial and Meshed Distribution Networks with Guarantee of Convergence
(Cartagena de Indias, 2020-08-21)This paper presents a general formulation of the classical iterative-sweep power flow, which is widely known as the backward–forward method. This formulation is performed by a branch-to-node incidence matrix with the main ... -
On the nonlinear control of a single-phase current source converter for sinusoidal voltage generation
(Cartagena de Indias, 2020)Colombian power system is being transformed for the large-scale integration of renewable energy resources and energy storage systems; all of these are integrated by power electronic converters controlled by voltage and ... -
On the numerical analysis based on successive approximations for power flow problems in AC distribution systems
(Cartagena de Indias, 2020-10)This paper proposes a new power flow formulation for alternating-current distribution networks for radial and mesh topologies. This formulation corresponds to a successive approximation based on a modification of the ... -
On the Optimal Reconfiguration of Radial AC Distribution Networks Using an MINLP Formulation: A GAMS-Based Approach
(Cartagena de Indias, 2022)This paper addresses the problem of the optimal reconfiguration of medium-voltage distribution networks by proposing a mixedinteger nonlinear programming (MINLP) model. The objective function of this optimization model is ... -
On the Optimal Selection and Integration of Batteries in DC Grids through a Mixed-Integer Quadratic Convex Formulation
(Cartagena de Indias, 2021-09-24)This paper deals with the problem of the optimal selection and location of batteries in DC distribution grids by proposing a new mixed-integer convex model. The exact mixed-integer nonlinear model is transformed into a ... -
On the use of the p-q theory for harmonic currents cancellation with shunt active filter
(VSB-Technical University of Ostrava, 2019)Discussion and mathematical proof on necessary and sufficient conditions for the application of the p-q theory for compensating the harmonic currents consumed by non-linear load using a shunt active filter are presented. ... -
One-minute integrated rainfall rate statistics from a rain gauge network in Colombia: Accuracy of prediction methods
(Cartagena de Indias, 2020-08-25)Reliable rainfall rate complementary cumulative distributions are critical for the design of microwave communications systems operating above around 8 GHz. This Letter presents the results of the analysis of more than 5 ... -
Operating cost reduction in distribution networks based on the optimal phase-swapping including the costs of the working groups and energy losses
(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 Allocation and Sizing of PV Generation Units in Distribution Networks via the Generalized Normal Distribution Optimization Approach
(Cartagena de Indias, 2022)The problem of optimal siting and dimensioning of photovoltaic (PV) generators in medium-voltage distribution networks is addressed in this research from the perspective of combinatorial optimization. The exact mixed-integer ... -
Optimal Charging Scheduling of Electric Vehicles based on Principal Component Analysis and Convex Optimization
(Cartagena de Indias, 2020-07-30)The widespread presence of plug-in Electric Vehicles (PEVs) in distribution power grids brings significant concerns regarding their energy demand and peak power requirements. In order to reduce the PEV load impact on power ... -
Optimal conductor size selection in radial distribution networks using a mixed-integer non-linear programming formulation
(IEEE Computer Society, 2018)In this paper a mixed-integer non-linear programming formulation for optimal conductor selection in radial distribution networks is proposed. The objective function in this problem corresponds to the minimization of power ... -
Optimal demand reconfiguration in three-phase distribution grids using an mi-convex model
(Cartagena de Indias, 2021)The problem of the optimal load redistribution in electrical three-phase medium-voltage grids is addressed in this research from the point of view of mixed-integer convex optimization. The mathematical formulation of the ... -
Optimal Design of PV Systems in Electrical Distribution Networks by Minimizing the Annual Equivalent Operative Costs through the Discrete-Continuous Vortex Search Algorithm
(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 Design of Transmission Shafts Using a Vortex Search Algorithm
(Cartagena de Indias, 2021-01-02)This paper analyzes the problem of optimally sizing a transmission shaft via the vortex search algorithm (VSA) optimizer. The objective function was to minimize the shaft weight through an adequate selection of the diameters ... -
Optimal design of transmission shafts: A continuous genetic algorithm approach
(International Academic Press, 2019)This paper presents an analysis of the optimal design of transmission shafts by adopting the approach of a novel continuous genetic algorithm. The optimization case study is formulated as a single-objective optimization ... -
Optimal economic-environmental dispatch in MT-HVDC systems via sine-cosine algorithm
(Cartagena de Indias, 2022)This paper addresses the problem of optimal economic-environmental dispatch in Multi-Terminal High-Voltage Direct Current (MT-HVDC) networks using the Sine-Cosine Algorithm (SCA). This optimization methodology allows working ... -
Optimal Economic–Environmental Operation of BESS in AC Distribution Systems: A Convex Multi-Objective Formulation
(Cartagena de Indias, 2021-12-10)This paper deals with the multi-objective operation of battery energy storage systems (BESS) in AC distribution systems using a convex reformulation. The objective functions are CO2 emissions, and the costs of the daily ... -
Optimal Integration of Battery Systems in Grid-Connected Networks for Reducing Energy Losses and CO2 Emissions
(Cartagena de Indias, 2023)This work addressed the problem regarding the optimal integration of battery systems (BS) in grid-connected networks (GCNs) with the purpose of reducing energy losses and CO2 emissions, for which it formulates a mathematical ... -
Optimal integration of D-STATCOM in distribution grids for annual operating costs reduction via the discrete version sine-cosine algorithm
(Cartagena de Indias, 2022)This paper deals with the problem of the optimal placement and sizing of distribution static compensators (D-STATCOM) in electrical distribution networks to reduce the total annual operative costs associated with the total ...
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.