2.- Investigación: Envíos recientes
Mostrando ítems 861-880 de 18224
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Traffic regulation and simulation. A predictive adaptive control system
(Sin editorial (Madrid, España), 1994-09-09)The project referred to in this paper consists of three phases. First, the development of a very accurate simulator in order to analyse the train and track performance of a balanced line, to be used as a CAD tool. Second, ... -
Train simulation and headway calculations: an approach based on parametrised continuous curves
(Sin editorial (Madrid, España), 1994-09-09)The project referred to in this paper consists of three phases. First, the development of a very accurate simulator in order to analyse the train and track performance of a balanced line, to be used as a CAD tool. Second, ... -
Energy-saving automatic optimisation of train speed commands using direct search techniques
(Sin editorial (Berlín, Alemania), 1996-07-31)This paper describes two computer tools that have been developed for the automatic optimisation of train speed commands. Given a target time for the trip between two consecutive stations, energy consumption is minimised. ... -
SIRO: an optimal regulation system in an integrated control centre for metro lines
(Sin editorial (Berlín, Alemania), 1996-07-31)This paper describes the development of the system SIRO, an optimal regulation tool for metro lines. SIRO combines simulation, optimisation and hierarchical control techniques. The objectives of the system are (1) to improve ... -
On-line rotor-resistance estimation for induction motors
(Sin editorial (Trondheim, Noruega), 1997-09-10)No disponible Not available -
Results of the implementation of an optimal control system in an integrated control centre for metro lines
(Sin editorial (Lisboa, Portugal), 1998-08-14)This paper presents the results of the implementation of an optimal control system for closed metro lines in an integrated control centre. The system has been successfully working for more than one year in metro lines of ... -
Analysis and Control of Chaotic DC-DC Switching Power Converters
(Sin editorial (Orlando, Estados Unidos de América), 2002-08-06)In this paper we review our approach to computing the static characteristics-such as voltage gain and average switching frequency-of open loop DC-DC converters under current-mode control in the chaotic regime. Linearized ... -
Application of the OGY method to the control of Chaotic DC-DC Converters: Theory and Experiments
(Sin editorial (Ginebra, Suiza), 2000-08-06)In this paper we implement OGY's method to control the chaotic behavior of a boost DC-DC converter under current mode control. In this approach the samples of the inductor current of the actual boost converter follow a ... -
An overview of an AGC for a de-regulated power system
(Sin editorial (Londres, Reino Unido), 2002-11-07)This paper reviews the structure of the Spanish Automatic Generation Control (AGC) under the new competitive environment which started on January 1st, 1998, and details how Endesa Generación (the largest Spanish generating ... -
Modelling of photovoltaic plants for power system dynamic studies
(Sin editorial (Londres, Reino Unido), 2002-11-07)This paper develops a simple model of a photovoltaic plant in order to be used in studies of power systems. First, a detailed model of a photovoltaic plant is developed. It comprises the modelling of solar panels, DCAC ... -
A new model for electricity price series modelling and forward and volatility curves computation
(Sin editorial (Ames, Estados Unidos de América), 2005-01-17)As a result of the deregulation processes, liberalized markets, where electricity futures and derivatives are traded, have arisen all over the world. Utilities, consumers, traders and, generally, market agents must do ... -
Stochastic market equilibrium model for generation planning
(Sin editorial (Ames, Estados Unidos de América), 2005-01-17)No disponibleNot available -
Including combined-cycle power plants in generation system reliability studies
(Sin editorial (Ames, Estados Unidos de América), 2005-01-17)No disponibleNot available -
Coupled electromechanical cost optimization of high speed railway overheads
(Sin editorial (Atlanta, Estados Unidos de América), 2006-05-22)This paper presents a coupled electromechanical optimization of the cost of high speed railway overheads. The proposed electromechanical optimization solves the coupled mechanical and electrical problems by obtaining the ... -
Critically-congested Nash-Cournot equilibria in electricity networks
(Sin editorial (Estocolmo, Suecia), 2007-05-21)Oligopolistic generators behaviour may result in equilibria characterized by critically-congested lines, that is, congested lines such that arbitrarially small generation changes cause them to be not-congested. The nature ... -
Catenary and autotransformer coupled optimization for 2x25kV systems planning
(Sin editorial (Praga, República Checa), 2006-06-22)In the design process of a 2x25kV power supply, the location and sizing of autotransformers and the choice of the catenary type are usually two aspects very closely interrelated. As a result, the number of autotransformers ... -
A mixed ACDC model for railways’ power systems
(Sin editorial (Praga, República Checa), 2006-06-22)A method to study railways’ power supply systems with AC power distribution networks and DC power feeding is presented in this paper. The aim of this work is to obtain a DC model of the whole system in which AC networks ... -
An optimization procedure to determine the topology of ac railways power supply networks
(Sin editorial (Pueblo, Estados Unidos de América), 2007-12-05)This paper presents an optimization procedure to determine the topology of AC railways power supply networks: location and type of the substations, catenaries to be used, location of neutral zones and location of ...