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Availability-Driven Optimal Design of Shared Path Protection in WDM Networks
Availability, defined as the fraction of time a network service is operative, is a key network service parameter. Dedicated protection increases availability but also the cost. Shared protection instead decreases the cost, ...
Analog neural nonderivative optimizers
(Institute of Electrical and Electronics Engineers (IEEE), 1998-07-01)
Continuous-time neural networks for solving convex nonlinear unconstrained;programming problems without using gradient information of the objective function are proposed and analyzed. Thus, the proposed networks are ...
Medium- and low-voltage planning of radial electric power distribution systems considering reliability
(2017-06-22)
This study proposes a new methodology to carry out distribution network planning considering medium-voltage (MV) and low-voltage (LV) systems. The integrated planning problem of a MV/LV distribution system is formulated ...
Wave friction factor rediscovered
(Springer, 2012)
The wave friction factor is commonly expressed
as a function of the horizontal water particle semi-excursion
(Awb) at the top of the boundary layer. Awb, in turn, is
normally derived from linear wave theory by UwbTw
2p ...
Voltage stability margin in DC grids with CPLs: A recursive Newton-raphson approximation
(Cartagena de Indias, 2019-03-11)
This express brief addresses the voltage collapse problem in direct-current (dc) networks by using a recursive heuristic search algorithm based on the Newton-Raphson method. The determinant of the Jacobian matrix in the ...
Continuous optimal control approaches to microgrid energy management
(Springer, 2018)
We propose a novel method for the microgrid energy management problem by introducing a nonlinear, continuous-time, rolling horizon formulation. The method is linearization-free and gives a global optimal solution with ...
Optimal Integration of Distributed Generators into DC Microgrids Using a Hybrid Methodology: Genetic and Vortex Search Algorithms
(Cartagena de Indias, 2022)
This paper addresses the problem of optimal location and sizing of distributed generators (DGs) in direct current (DC) grids. To solve it, we propose an optimization approach with an objective function that aims to reduce ...
Diseño y configuración óptima de un sistema de refrigeración por absorción
(UniandesMaestría en Ingeniería QuímicaFacultad de IngenieríaDepartamento de Ingeniería Química, 2018)
La utilización de sistemas de refrigeración por absorción (AR) presenta varias ventajas ambientales en comparación con los sistemas convencionales de refrigeración, pero tiene un mayor costo económico. Por lo tanto, la ...
Calculating capillary pressure curve from single-speed centrifuge experiments
(Iop Publishing LtdBristolInglaterra, 2000)