Now showing items 1-20 of 101

  • A bounded-error approach to simultaneous state and actuator fault estimation for a class of nonlinear systems 

    Buciakowski, Mariusz; Witczak, Marcin; Puig Cayuela, Vicenç; Rotondo, Damiano; Nejjari Akhi-Elarab, Fatiha; Korbicz, Jozef (2017-04-01)
    Article
    Open Access
    This paper proposes an approach for the joint state and fault estimation for a class of uncertain nonlinear systems with simultaneous unknown input and actuator faults. This is achieved by designing an unknown input observer ...
  • Actuator fault-tolerant control based on set separation 

    Ocampo-Martínez, Carlos; Doná, José A. de; Serón, María (2008)
    External research report
    Open Access
    In this report an actuator fault-tolerant control (FTC) strategy based on set separation is presented. The proposed scheme employs a bank of observers which match the different fault situations that can occur in the plant. ...
  • Adaptive estimation of time-varying parameters with application to roto-magnet plant 

    Na, Jing; Xing, Yashan; Costa Castelló, Ramon (Institute of Electrical and Electronics Engineers (IEEE), 2018-12-10)
    Article
    Open Access
    This paper presents an alternative adaptive parameter estimation framework for nonlinear systems with time-varying parameters. Unlike existing techniques that rely on the polynomial approximation of time-varying parameters, ...
  • Admissible Model Matching Fault Tolerant Control based on LPV Fault Representation 

    Montes de Oca, Saúl; Puig Cayuela, Vicenç; Theilliol, Didier; Tornil Sin, Sebastián (2009-11-19)
    Conference report
    Open Access
  • Advanced control systems research at UPC Terrassa Campus 

    Quevedo Casín, Joseba Jokin; Puig Cayuela, Vicenç (Campus de Terrassa de la UPC, 2013-06-13)
    Conference report
    Open Access
    Advanced Control Systems (SAC) is a multidiscip linary research group involving UPC professors and Spanish National Research Council (CSIC) researchers, focused on the wide subject of control and supervision of dynamic ...
  • A Fixed-Frequency Quasi-Sliding Control Algorithm: Application to Power Inverters Design by Means of FPGA Implementation 

    Ramos Lara, Rafael Ramón; Biel Solé, Domingo; Fossas Colet, Enric; Guinjoan Gispert, Francisco (Institute of Electrical and Electronics Engineers (IEEE), 2003-01-31)
    Article
    Open Access
    In this paper a fixed-frequency quasi-sliding control algorithm based on switching surface zero averaged dynamics (ZAD) is reported. This algorithm is applied to the design of a Buck-based inverter, and implemented in a ...
  • A multiobjective-based switching topology for hierarchical model predictive control applied to a hydro-power valley 

    Nuñez Vicencio, Alfredo; Ocampo-Martínez, Carlos; De Schutter, Bart; Valencia, Felipe; López, José D.; Espinosa, Jairo (2013)
    Conference report
    Open Access
    In a Hierarchical Model Predictive Control (H-MPC) framework, this paper explores suitable time-variant structures for the hierarchies of different local MPC controllers. The idea is to adapt to different operational ...
  • An adaptive controller for bilateral teleoperators: transatlantic experiments using the internet 

    Nuño Ortega, Emmanuel; Basañez Villaluenga, Luis; de Alba Padilla, Carlos; López Franco, Carlos (2012)
    Conference lecture
    Restricted access - publisher's policy
    A bilateral teleoperator is composed of a local and a remote manipulators interconnected through a communication channel. A human operator interacts with the local manipulator to remotely execute a given task via the ...
  • Analysis and synthesis of control systems over wireless digital channels 

    Reza Karimi, Hamid; Niu, Yugang; Rossell Garriga, Josep Maria; Yang, Fuwen (2017-06-01)
    Article
    Open Access
  • Analysis of a bidirecctional coupled-inductor Cuk converter operating in sliding mode 

    Martínez Salamero, Luis; Calvente Calvo, Francisco Javier; Giral, Roberto; Poveda López, Alberto; Fossas Colet, Enric (Institute of Electrical and Electronics Engineers (IEEE), 1998-04-30)
    Article
    Open Access
    Analytic models for a bidirectional coupled-inductor Cuk converter operating in sliding mode are described. Using a linear combination of the converter four state variable errors as a general switching surface, the expression ...
  • Analysis of the control structures for an integrated ethanol processor for proton exchange membrane fuel cell systems 

    Biset, S; Nieto Deglioumini, Lucas; Basualdo, Marta; Garcia Mariel, Vanesa; Serra, Maria (2009)
    Article
    Open Access
    The aim of this work is to investigate which would be a good preliminary plantwide control structure for the process of Hydrogen production from bioethanol to be used in a proton exchange membrane (PEM) accounting only ...
  • An extension of the unity vector control method 

    Roqueiro, Nestor; Do Carmo, L. M. M.; Silveira, H. B.; Fossas Colet, Enric (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference report
    Restricted access - publisher's policy
    In this work, Unity Vector Control is revisited based on the results by V. Utkin and co-workers. The approach here presented extends the one reported by V. Utkin and co-workers so that independent feedback gains may be ...
  • An LPV Fractional Model for Canal Control 

    Bolea Monte, Yolanda; Martínez González, Rubén; Grau Saldes, Antoni; Martínez García, Herminio (PERGAMON PRESS. IFAC SERIES., 2009)
    Conference report
    Restricted access - publisher's policy
    In this paper an LPV non-integer order control model of an irrigation canal is derived from system identification experiments. This model is experimentally obtained by using the described LPV fractional identification ...
  • An LPV modelling and fault diagnosis in wind turbine benchmark system 

    Chouiref, Houda; Boussaid, B.; Abdelkrim, Mohamed Naceur; Puig Cayuela, Vicenç; Aubrun, C (2017-07-01)
    Article
    Open Access
    In order to keep away wind turbines from catastrophic conditions due to sudden breakdowns, it is important to detect faults as soon as possible. For diagnosis, a model-based approach is chosen. There are many works that ...
  • Application of Sliding Mode Control to the design of a Buck-based sinusoidal Generator 

    Biel Solé, Domingo; Fossas Colet, Enric; Guinjoan Gispert, Francisco; Alarcón Cot, Eduardo José; Poveda López, Alberto (Institute of Electrical and Electronics Engineers (IEEE), 2001-06)
    Article
    Open Access
    This paper is devoted to the design of a sliding-mode control scheme for a buck-based inverter, with programmable amplitude, frequency, and dc offset, with no external sinusoidal reference required. A general procedure for ...
  • A proportional plus damping injection controller for teleoperators with joint fexibility and time–delays 

    Nuño Ortega, Emmanuel; Sarras, Ioannis; Basañez Villaluenga, Luis; Kinnaert, Michel (IEEE, 2012)
    Conference lecture
    Restricted access - publisher's policy
    The problem of controlling a rigid bilateral teleoperator with time-delays has been effectively addressed since the late 80’s. However, the control of flexible joint manipulators in a bilateral teleoperation scenario is ...
  • A robust asynchronous sampled-data control design for nonlinear systems with actuator failures 

    Acho Zuppa, Leonardo; Buenestado Caballero, Pablo (Multidisciplinary Digital Publishing Institute, 2017-08-26)
    Article
    Open Access
    This paper presents a recent self-sampled-data control algorithm applied to nonlinear systems with actuator failures. Our approach uses the linear model of a given nonlinear system, and based on a granted actuator fault ...
  • A robust H1 observer design for unknown input nonlinear systems: Application to fault diagnosis of a wind turbine 

    Witczak, Marcin; Puig Cayuela, Vicenç; Rotondo, Damiano; Faygel, Michal de Rozprza; Mrugalski, Marcin (Institute of Electrical and Electronics Engineers (IEEE), 2015)
    Conference report
    Restricted access - publisher's policy
    The paper is devoted to the problem of designing robust unknown input observer (UIO) for fault estimation purpose. The proposed approach is based on the Takagi-Sugeno models which can be effectively applied for modelling ...
  • A robust H8 observer design for unknown input nonlinear systems: Application to fault diagnosis of a wind turbine 

    Witczak, Marcin; Puig Cayuela, Vicenç; Rotondo, Damiano; Faygel, Michal de Rozprza; Mrugalski, Marcin (Institute of Electrical and Electronics Engineers (IEEE), 2015)
    Conference report
    Restricted access - publisher's policy
    The paper is devoted to the problem of designing robust unknown input observer (UIO) for fault estimation purpose. The proposed approach is based on the Takagi-Sugeno models which can be effectively applied for modelling ...
  • A Stein matrix equation related to transfer matrix of linear dynamic systems over commutative rings 

    García Planas, María Isabel; Lopez Cabeceira, Montserrat (Editorial de la Universitat Politècnica de València (UPV), 2010)
    Conference report
    Open Access
    Este trabajo está inmerso en el campo de la Teoría de Control sobre un anillo conmutativo R con elemento unidad. Dado un sistema dinámico lineal invariante en el tiempo representado por x+(t) = Ax(t) + Bu(t) sobre R, ...