Now showing items 1-20 of 125

  • Adaptive Compensation Strategy For The Tracking/Rejection of Signals with Time-Varying Frequency in Digital Repetitive Control Systems 

    Ramos Fuentes, Germán Andrés; Olm Miras, Josep Maria; Costa Castelló, Ramon (2009-09)
    Conference report
    Open Access
    Digital repetitive control is a technique which al- lows to track periodic references and/or reject peri- odic disturbances. Repetitive controllers are usually de- signed assuming a fixed frequency for the signals to ...
  • 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, ...
  • Adaptive neural network state predictor and tracking control for nonlinear time-delay systems 

    Na, Jing; Ren, Xuemei; Gao, Yan; Griñó Cubero, Robert; Costa Castelló, Ramon (2010-02)
    Article
    Restricted access - publisher's policy
    A new adaptive nonlinear state predictor (ANSP) is presented for a class of unknown nonlinear systems with input time-delay. A dynamical identification with neu- ral network (NN) is constructed to obtain NN weights and ...
  • Análisis de estabilidad de un sistema de control repetitivo digital con periodo de muestreo variable 

    Olm Miras, Josep Maria; Costa Castelló, Ramon; Ramos Fuentes, Germán Andrés (Universidad Carlos III de Madrid (UC3M), 2008)
    Conference report
    Restricted access - author's decision
  • Analysis and design of a robust odd-harmonic repetitive controller for an active filter under variable network frequency 

    Ramos Fuentes, Germán Andrés; Costa Castelló, Ramon; Olm Miras, Josep Maria (2012-09)
    Article
    Restricted access - publisher's policy
    Frequencyvariationsintheelectricalnetworkmaycauseadramaticperformancedecayinrepetitive controlledactivefiltersintendedtoremoveodd-harmonicdistortioninsingle-phaseACloads.This work presentsanodd-harmonicrepetitivecontro ...
  • An educational approach to the internal model principle for periodic signals 

    Costa Castelló, Ramon; Olm Miras, Josep Maria; Vargas, Hector; Ramos Fuentes, Germán Andrés (2012-08)
    Article
    Open Access
    This article presents an educational approach to resonant control and repet- itive control, which are Internal Model Principle-based control techniques speci cally de- signed for the tracking/rejection of periodic signals. ...
  • A new passive repetitive controller for discrete-time finite-frequency positive-real systems 

    Costa Castelló, Ramon; Wang, Danwei; Griñó Cubero, Robert (IEEE Control Systems Society, 2007)
    Conference report
    Open Access
    This work proposes a new repetitive controller for discrete-time finite-frequency positive-real systems which are required to track periodic references or to attenuate periodic disturbances. The main characteristic of the ...
  • An Interactive and comprehensive software tool to promote active learning in the Loop Shaping Control System design 

    Díaz, José Manuel; Costa Castelló, Ramon; Muñoz, R; Dormido Bencomo, Sebastián (Institute of Electrical and Electronics Engineers (IEEE), 2017-06-07)
    Article
    Open Access
    The classical loop shaping is a design procedure that explicitly involves the shaping of the open loop transfer function L(s), within a desired frequency spectrum by manipulating the poles, zeros, and gain of the controller ...
  • An interactive tool to introduce the waterbed effect 

    Costa Castelló, Ramon; Dormido Bencomo, Sebastián (2015)
    Conference report
    Restricted access - publisher's policy
    Linear control systems are subject to design constraints. Most of these constraints are intrinsic properties of linear systems which can be explained in terms of complex variable theory. In this work a tool designed to ...
  • An interactivity-based methodology to support control education. How to teach and learn using simple interactive tools. 

    Guzmán Sánchez, José Luis; Costa Castelló, Ramon; Dormido Bencomo, Sebastián; Berenguel, Miguel (2016-02-01)
    Article
    Open Access
    Modern engineering projects are multidisciplinary and involve the integration of diverse elements. Within this context, automatic control plays a crucial role. Automatic control is an area of knowledge with significant ...
  • An optimal anti-windup strategy for repetitive control systems German 

    Ramos Fuentes, Germán Andrés; Costa Castelló, Ramon (2011)
    Conference report
    Open Access
    Repetitive Control includes an Internal Model with high gain and slow time response characteristics which make it prone to the windup effect. A solution to this problem is the inclusion of an Anti-Windup compensator. ...
  • A novel energy management strategy for fuel-cell/supercapacitor hybrid vehicles 

    Carignano, Mauro; Costa Castelló, Ramon; Nigro, Norberto; Junco, Sergio (2017-07-01)
    Article
    Open Access
    Hybrid platforms powered by fuel cell and supercapacitor represent a powertrain with active state-dependent constraints, providing an adverse scenario for the energy management. In these platforms, the performance of the ...
  • A novel energy management strategy for fuel-cell/supercapacitor hybrid vehicles. 

    Carignano, Mauro; Costa Castelló, Ramon; Nigro, Norberto; Junco, Sergio (Elsevier, 2017)
    Conference report
    Open Access
    Hybrid platforms powered by fuel cell and supercapacitor represent a powertrain with active state-dependent constraints, providing an adverse scenario for the energy management. In these platforms, the performance of the ...
  • An overview of micro-grid architecture with hybrid storage elements and its control 

    Raveendran Nair, Unnikrishnan; Costa Castelló, Ramon (Comité Español de Automática (CEA-IFAC), 2017)
    Conference report
    Open Access
    This paper discusses the role of hybrid energy storage systems in future grids to improve the penetration of renewable energy sources. The storage systems are essential in the future grids to improve the power quality and ...
  • A passive repetitive controller for discrete-time finite-frequency positive-real systems 

    Costa Castelló, Ramon; Wang, Danwei; Griñó Cubero, Robert (Institute of Electrical and Electronics Engineers (IEEE), 2009-04)
    Article
    Open Access
    This work proposes and studies a new internal model for discrete-time passive or finite-frequency positive-real systems which can be used in repetitive control designs to track or to attenuate periodic signals. The main ...
  • A repetitive controller for discrete-time passive systems 

    Costa Castelló, Ramon; Griñó Cubero, Robert (2006-10-23T14:07:36Z)
    External research report
    Open Access
    This work proposes and studies a new repetitive controller for discrete-time systems which are required to track or to attenuate periodic signals. The main characteristic of the proposed controller is its passivity. This ...
  • A repetitive control scheme for distributed solar collector field 

    Berdugo de Moya, Iván Rafael; Costa Castelló, Ramon; Berenguel, M; Yebra, José Luis A. (2010-05)
    Article
    Restricted access - publisher's policy
    The control of the output fluid temperature in a distributed solar collector field implies accounting for the excitement of its intrinsic resonance modes. Resonance mode frequencies are related to the residence time of the ...
  • Assessment of energy management in a fuel cell/battery hybrid vehicle 

    Carignano, Mauro; Roda Serrat, Vicente; Costa Castelló, Ramon; Valiño, Luis; Lozano Fantoba, Antonio; Barreras Toledo, Felix Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Article
    Restricted access - publisher's policy
    The energy management strategy plays a major role in hybrid platforms powered by fuel cells (FCs) and batteries. This paper presents an assessment of energy management focused on fuel economy and battery degradation. ...
  • A survey of repetitive control in varying frequency conditions 

    Fuentes, G.A.R.; Olm Miras, Josep Maria; Costa Castelló, Ramon (2011-08)
    Article
    Open Access
    Digital repetitive control is a strategy that allows tracking/ rejecting periodic signals. Repetitive controllers are designed assuming that the exogenous signal period is constant and known, its main drawback being the ...
  • Atenuación de perturbaciones periódicas mediante control MRAC con síntesis de controlador mínima 

    Larco Barros, Ciro Mauricio; Costa Castelló, Ramon; Olm Miras, Josep Maria (2016)
    Conference report
    Restricted access - publisher's policy
    El seguimiento/rechazo de perturbaciones periódicas en sistemas lineales es factible utilizando controladores basados en el principio del modelo interno. Sin embargo, cuando la frecuencia de la señal a seguir/rechazar es ...