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Now showing items 44661-44670 of 44896
Failure risk analysis and maintenance effectiveness in a windturbine according to its history of unavailability and applied maintenance
(European Safety and Reliability Association (Troyes, Francia), 2011-09-18)
The current practice of maintenance applied to existing windturbines is based on periodical preventive maintenance actions recommended by their manufacturers. In most cases, this maintenance is applied without paying special ...
Assessment of the economic potential of microgrids for reactive power supply
(Sin editorial (Jeju, Corea del Sur), 2011-07-07)
As power generation from variable distributed energy resources (DER) grows, energy flows in the network are changing, increasing the requirements for ancillary services, including voltage support. With the appropriate power ...
Fault detection through physical modelling in an axial flow compressor of a combined-cycle power plant
(European Safety and Reliability Association (Troyes, Francia), 2011-09-18)
The methods that are most frequently used in fault detection are able to detect that some abnormal behaviour of a system is occurring, but are unable to explain directly its causes. The main goal of the new method proposed ...
A medium-term operation model for a natural gas system
(Sin editorial (Zagreb, Croacia), 2011-05-25)
During last decades, consumption of natural gas has been continuously increasing worldwide. Hence, infrastructure has been developed to transport the natural gas from the well to the final consumer. Natural gas chain value ...
On the use of the dual resonance non linear filter for speech processing in a hearing aid algorithm
(Sin editorial (Bari, Italia), 2011-07-28)
The Dual Resonance Non Linear (DRNL) filter bank is a powerful model of the human cochlear behavior successfully applied to cochlear implants. This study is aimed to the implementation of an algorithm for using this model ...
Active- and reactive-power control for a wind generator connected to the grid using a predictive-integral control and a PI control schemes
(Sin editorial (Dresde, Alemania), 2006-08-07)
This paper investigates the control of the active and reactive power injected into the grid by a variablespeed wind generator. Two different control schemes are studied to achieve a decoupled control of the active and the ...
Application of possibility theory to robust Cournot equilibrium in electricity market
(Sin editorial (Ames, Estados Unidos de América), 2005-01-17)
It is known that Cournot game theory has been one of the theoretical approaches more used to model electricity market behavior. Nevertheless, this approach is highly influenced by the residual demand curves of the market ...
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 ...
AMADIS: Arquitectura Multi-Agente para la Detección de Anomalías y Diagnóstico Inteligente de sistemas industriales
(Sin editorial (Granada, España), 2005-09-16)
Este artículo describe una arquitectura general para el diseño de sistemas multi-agente de diagnóstico industrial inteligente en tiempo real basado en el seguimiento de su comportamiento a través de modelos que reproducen ...
Modelado de velocidad de tirada y tiempos de preparación de procesos de fabricación de cajas de cartón
(Sin editorial (Gijón, España), 2005-09-09)
Esta comunicación describe el modelado de la velocidad de tirada y de los tiempos de preparación de pedidos de cajas de cartón en el proceso de impresión y troquelado de la empresa MICROLAN S.A. Un análisis de correlación ...