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Sliding mode control strategy for variable speed wind turbines
Barambones Caramazana, Oscar 
; González de Durana García, José María (IEEE, 2009)
; González de Durana García, José María (IEEE, 2009)
The efficiency of the wind power conversions systems can be greatly improved using an appropriate control algorithm. In this work, a robust control for variable speed wind power generation that incorporates a doubly feed ...
Object oriented simulation of hybrid renewable energy systems focused on supervisor control
Barambones Caramazana, Oscar ; González de Durana García, José María (IEEE, 2009)
; González de Durana García, José María (IEEE, 2009)
With eyes focused on simulation the authors review some of the main topics of Hybrid Renewable Energy Systems (HRES). Then they describe an Object Oriented model of a simple example of one of such systems, a micro-grid, ...
An agent-based multi-scale wind generation model
Kremers, Enrique; Lewald, Norbert; Barambones Caramazana, Oscar ; González de Durana García, José María (ACTA Press, 2009)
; González de Durana García, José María (ACTA Press, 2009)
This paper presents an agent-based model for simulating wind power systems on multiple time scales. The aim is to generate a flexible model that allows us to simulate the output of a wind farm. The model is developed using ...
Complete agent based simulation of mini-grids
González de Durana García, José María; Barambones Caramazana, Oscar ; Kremers, Enrique; Viejo, Pablo (ACTA Press, 2009)
; Kremers, Enrique; Viejo, Pablo (ACTA Press, 2009)
With eyes focused on simulation we review some of the main topics of Hybrid Renewable Energy Systems (HRES). Then we describe an Agent Based model of a simple example of one of such systems, a micro-grid, oriented to ...
Variable structure control for maximum wind power extraction
Barambones Caramazana, Oscar ; González de Durana García, José María; (ACTA Press, 2009)
; González de Durana García, José María; (ACTA Press, 2009)
The actual wind turbines are provided with adjustable speed generators.Iike the double feed induction generator, that are capable to work in variable speed operations. One of the main advantage of adjustable speed generators ...
Adaptive stabilization of continuous-time systems through a controllable modified estimation model
De la Sen Parte, Manuel (Hindawi Publishing Corporation, 2004)
(Hindawi Publishing Corporation, 2004)
This paper presents an indirect adaptive control scheme of continuous-time systems. The estimated plant model is controllable and then the adaptive scheme is free from singularities. Such singularities are avoided through ...
On pole-placement controllers for linear time-delay systems with commensurate point delays
De la Sen Parte, Manuel (Hindawi Publishing Corporation, 2005)
(Hindawi Publishing Corporation, 2005)
We investigate the exact and approximate spectrum assignment properties associated with realizable output-feedback pole-placement-type controllers for single-input single-output linear time-invariant time-delay systems ...
Techniques for On-Line Diagnosis of Stator Shorted Turns in Induction Motors
Albizu Flórez, Igor ; ; Mazón Sainz-Maza, Angel Javier ; (Taylor & Francis, 2006-01)
; ; Mazón Sainz-Maza, Angel Javier ; (Taylor & Francis, 2006-01)
In low voltage induction motors, the first indication of a stator fault is the appearance of an inter-turn short circuit. For this reason, several attempts to diagnose reliably these short circuits have been made. Although ...
Geometric multiplicity margin for a submatrix
(Elsevier, 2002-07)
Let G be a square complex matrix with less than k nonconstant invariant factors. We find a complex matrix that gives an optimal approximation to G among all possible matrices that have more than or equal to k invariant ...