Exploració per autor "Vidal Seguí, Yolanda"
Ara es mostren els items 1-20 de 66
-
Acceleration-based fault-tolerant control design of offshore fixed wind turbines
(2016)
Article
Accés obertWind turbines (WTs) are basically controlled by varying the generator load torque (with the so-called torque control) and the blade pitch angles (with the so-called pitch control) based on measurement of the generator shaft ... -
A chaotic secure communication scheme based on duffing oscillators and frequency estimation
(2013)
Text en actes de congrés
Accés obertThis work presents a new technique to securely transmit and retrieve a message signal via chaotic systems. In our system, a two-valued message signal modulates the frequency of a Duffing oscillator sinusoidal term. An ... -
Active control of hysteretic base-isolated structures via delayed signals
(2010)
Comunicació de congrés
Accés obert -
A discontinuous galerkin formulation for solid dynamics
(Omnipress, 2006)
Presentació
Accés obert -
A fault detection method for hysteretic base-isolation systems
(Universitat Politècnica de Catalunya. Departament de Matemàtica Aplicada III (MA3), 2011-02)
Capítol de llibre
Accés obert -
A fault detection method for pitch actuators faults in wind turbines
(2015)
Text en actes de congrés
Accés obertThe paper presents a model-based fault detection method for pitch actuators faults using the normalized gradient method to estimate the parameters of the pitch actuator. One major difficulty is that the input signal to the ... -
A modified Chua chaotic oscillator and its application to secure communications
(2014)
Article
Accés obertIn this paper, a new modified Chua oscillator is introduced. The original Chua oscillator is well known for its simple implementation and mathemati- cal modeling. A modification of the oscillator is proposed in order to ... -
An experimental realization of a chaos-based secure communication using arduino microcontrollers
(2015-08-27)
Article
Accés obertSecurity and secrecy are some of the important concerns in the communications world. In the last years, several encryption techniques have been proposed in order to improve the secrecy of the information transmitted. ... -
A secure communication design based on the chaotic logistic map: an experimental realization using Arduino microcontrollers
(Springer, 2015)
Capítol de llibre
Accés restringit per política de l'editorial -
A secure communication system based on a modified chaotic chua oscillator
(2014)
Comunicació de congrés
Accés obertIn this paper we propose a new scheme for secure communications us- ing a modified Chua oscillator. A modification of the oscillator is proposed in order to facilitate the decryption. The communication system requires two ... -
Asymetric modelling and control of an electronic throttle
(2016-03)
Article
Accés obertThis paper presents an improved model for an automotive electronic throttle inspired on the behavior observed in real-time experiments. Due to a number of issues, particularly the return-spring, the performance of the ... -
A velocity based active vibration control of hysteretic systems
(2011)
Text en actes de congrés
Accés obert -
A velocity based active vibration control of hysteretic systems
(2011-01)
Article
Accés obertHysteresis is a property of systems that do not instantly follow the forces applied to them, but react slowly, or do not return completely to their original state. A velocity based active vibration control, along with a ... -
Bounds for quantities of interest and adaptivity in the element-free Galerkin method
(Wiley and Sons, 2008-07)
Article
Accés obertA novel approach to implicit residual-type error estimation in mesh-free methods and an adaptive refinement strategy are presented. This allows computing upper and lower bounds of the error in energy norm with the ultimate ... -
Chattering control design on a variable-speed horizontal-axis wind turbine
(2011)
Text en actes de congrés
Accés restringit per política de l'editorial -
Computed-torque-plus-compensation-plus-chattering controller of robot manipulators
(Intech, 2009-12)
Capítol de llibre
Accés obert -
Condition monitoring of wind turbine structures through univariate and multivariate hypothesis testing
(IntechOpen, 2018)
Capítol de llibre
Accés restringit per política de l'editorialThis chapter presents a fault detection method through uni- and multivariate hypothesis testing for wind turbine (WT) faults. A data-driven approach is used based on supervisory control and data acquisition (SCADA) data. ... -
Control of base-isolated systems using force feedback
(2011)
Text en actes de congrés
Accés obert -
Damage and fault detection of structures using principal component analysis and hypothesis testing
(Springer, 2017-12-13)
Capítol de llibre
Accés restringit per política de l'editorialThis chapter illustrates the application of principal component analysis (PCA) plus statistical hypothesis testing to online damage detection in structures, and to fault detection of an advanced wind turbine benchmark under ... -
Dynamic load mitigation for floating offshore wind turbines supported by structures with mooring lines
(2012)
Comunicació de congrés
Accés obertIn recent years, the offshore wind industry has experienced significant growth with the installation of offshore wind farms in shallow water (such as in Denmark). However, almost all of offshore wind turbines to date are ...
