Recent Submissions

  • Phase-Locked Loop using a comb filter with fractional delay 

    Griñó Cubero, Robert; Mughal, Umair Najeeb (2011-05)
    External research report
    Open Access
    A Phase Locked Loop is a feedback system combining a Voltage Controlled Oscillator and a Phase Comparator These are connected so that the oscillator maintains a constant phase angle relative to a reference signal. Phase ...
  • Periodic solutions with nonconstant sign in Abel equations of the second kind 

    Martínez-Seara Alonso, M. Teresa; Ros Oton, Xavier; Olm Miras, Josep Maria (2011-02)
    External research report
    Open Access
    The study of periodic solutions with constant sign in the Abel equation of the second kind can be made through the equation of the first kind. This is because the situation is equivalent under the transformation x 7¡æ ...
  • On the role of virtual laboratories in an undergraduate power electronics introductory course 

    Biel Solé, Domingo; Vento Maldonado, Jorge; Costa Castelló, Ramon (2010-01)
    External research report
    Open Access
  • Non-uniform sampling in digital repetitive control systems: An LMI stability analysis 

    Ramos Fuentes, Germán Andrés; Olm Miras, Josep Maria; Costa Castelló, Ramon (2009-03)
    External research report
    Open Access
    Digital repetitive control is a technique which allows to track periodic references and/or reject periodic disturbances. Repetitive controllers are usually designed assuming a fixed frequency for the signals to be ...
  • Robust Exact Differentiation via Sliding Mode Technique applied to a Fixed-Frequency Quasi-Sliding Control Algorithm 

    Biel Solé, Domingo; Fossas Colet, Enric; Meza Benavides, Carlos; Muñoz Aguilar, Raúl Santiago (2008-01)
    External research report
    Open Access
    This paper presents the design of a DC-AC power converter controller that bears the same benefits of a sliding mode controller but with the advantage of a fixed-frequency control signal. The controller is based on the ...
  • Iterative approximation of unstable limit cycles for a class of Abel equations 

    Fossas Colet, Enric; Olm Miras, Josep Maria; Sira-Ramírez, Hebertt (2007)
    External research report
    Open Access
    This report considers the analytical approximation of unstable limit cycles that may appear in Abel equations written in the normal form. The procedure uses an iterative approach that takes advantage of the contraction ...
  • Análisis y diseño de controladores lineales para el convertidos elevador ("boost") bidireccional en corriente 

    Malo Barragán, Shane Leonardo; Griñó Cubero, Robert (2005-07)
    External research report
    Open Access
    Los convertidores de voltaje DC-DC juegan dentro de la tecnología actual un papel fundamental, actúan como puentes de transferencia de energía entre fuentes y cargas, ambas de corriente continua, que no son compatibles por ...
  • Hybrid model of a doubly-fed induction machine and back-to-back converter 

    Batlle Arnau, Carles; Dòria Cerezo, Arnau; Fossas Colet, Enric (2005-03)
    External research report
    Open Access
    This report details the port interconnection of two subsystems: a power electronics subsystem (a back-to-back AC/AC converter (B2B), coupled to a phase of the power grid), and an electromechanical subsystem (a doubly-fed ...
  • 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 ...
  • Aplicacions interactives per la docència de control amb computador: alguns exemples de llaç obert 

    Fàbregas i Cornellà, Josep (2005-09)
    External research report
    Open Access
    En aquest treball s’han desenvolupat un conjunt que poden ésser de gran utilitat per il•lustrat els diferents aspectes de la teoria presentada en l’assignatura “Control amb Computador” de l’ETSEIB. Aquestes eines són un ...
  • Irrigation canal system identification for control purposes 

    Sepúlveda Toepfer, Carlos; Rodellar Benedé, José (2005-09)
    External research report
    Open Access
    This report gives some guidance on how to obtain black-box models of irrigation canal reaches, using system identification techniques. First of all, some general properties of the irrigation canal reaches are deducted, ...
  • Identification of a system with dry friction 

    Iurian, Claudiu; Ikhouane, Fayçal; Rodellar Benedé, José; Griñó Cubero, Robert (2005-09)
    External research report
    Open Access
    A new elasto-plastic state variable friction model is proposed which models both stiction and presliding displacement. However, the proposed Leuven model by Swevers et al. is more complex than the standard parameterization ...

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