Now showing items 1-20 of 88

  • Acte acadèmic de graduació de la facultat de Nàutica de Barcelona 2015-2016 

    Ordás Jiménez, Santiago; Fossas Colet, Enric; Cobos Delgado, Ismael; Bailón Díaz, Pedro (2016-10-14)
    Audiovisual
    Open Access
  • Acte de graduació de la Promoció 2016-2017 de la Facultat de Nàutica de Barcelona 

    Martín Mallofré, Agustí; Mata Enrich, Elvira; Fossas Colet, Enric; Mas Borrell, Xiqui (2017-11-09)
    Audiovisual
    Open Access
  • A feedback-based L-2-norm limiter for periodic signals 

    Griñó Cubero, Robert; Ortega, Romeo; Fossas Colet, Enric (2011-01)
    Article
    Restricted access - publisher's policy
    Limiting the rms value (L2 norm) of periodic signals can be a necessity in some controllers for power electronic devices. The prevailing existing solution is simply to compute, off-line, the L2 norm and then to multiply ...
  • 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 ...
  • An algebraic parameter estimation approach to the adaptive observer-controller based regulation of the boost converter 

    Sira-Ramírez, Hebertt; Fossas Colet, Enric; Spinetti Rivera, Mario (Institute of Electrical and Electronics Engineers, 2007-06)
    Conference report
    Open Access
    In this article, a new approach is proposed for the problem of output voltage reference trajectory tracking in a boost converter with unknown, piecewise constant, load resistance values, under the restriction of noisy ...
  • Analysis and control of an hybrid system: a doubly-fed induction machine and a back-to-back converter 

    Batlle Arnau, Carles; Dòria Cerezo, Arnau; Fossas Colet, Enric (Universitat Politècnica de Catalunya. Institut d'Organització i Control de Sistemes Industrials, 2005-09)
    External research report
    Open Access
    This report describes the port interconnection of two subsystems: a power elec- tronics subsystem (a back-to-back AC/AC converter (B2B), coupled to a phase of the power grid), and an electromechanical subsystem (a ...
  • 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 ...
  • A new estimation of the lower error bound in balanced truncation method 

    Ha Binh, Minh; Batlle Arnau, Carles; Fossas Colet, Enric (2014-08-01)
    Article
    Open Access
    For a single-input/single-output (SISO) linear time-invariant dynamical system, the standard H-infinity-norm lower error bound of balanced truncation method is parallel to G(s) - G(r)(s)parallel to(H infinity) >= sigma(r+1), ...
  • 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 ...
  • 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 sliding mode control for a wound rotor synchronous generator with an isolated RL load 

    Muñoz Aguilar, Raúl Santiago; Dòria Cerezo, Arnau; Fossas Colet, Enric (IEEE Press. Institute of Electrical and Electronics Engineers, 2010)
    Conference lecture
    Open Access
    In this paper a sliding mode controller for the stator voltage amplitude of a stand-alone wound rotor synchronous generator is presented. The standard dq-model of the electrical machine connected to an isolated inductive ...
  • A sliding mode controlled three wheeled narrow vehicle 

    Fossas Colet, Enric; Roqueiro, Nestor; Gaudezi de Faria, Marcelo (2013)
    Article
    Restricted access - publisher's policy
    This paper presents a sliding mode controller for a narrow tilting three-wheeled vehicle. The vehicle is modelled as a dynamic eighteen-order system with two inputs and two outputs, however, a simple third-order model of ...
  • A unified approach to explain contrary effects of hysteresis and smoothing in nonsmooth systems 

    Bonet Revés, Carles; Martínez-Seara Alonso, M. Teresa; Fossas Colet, Enric; Jeffrey, Mike R. (2017-09-01)
    Article
    Restricted access - publisher's policy
    Piecewise smooth dynamical systems make use of discontinuities to model switching between regions of smooth evolution. This introduces an ambiguity in prescribing dynamics at the discontinuity: should the dynamics be given ...
  • Averaged dynamics of a coupled-inductor boost converter under sliding mode control using a piecewise linear complementarity model 

    Carrero Candelas, Niliana Andreina; Batlle Arnau, Carles; Fossas Colet, Enric (2016-04-12)
    Article
    Open Access
    An averaged model of a coupled-inductor boost converter using the piecewise complementarity model of the converter under sliding motions is obtained. The model takes into account the idealized voltage–current characteristic ...
  • Bifurcation analysis of a Lyapunov-based controlled boost converter 

    Spinetti Rivera, Mario de Jesús; Olm Miras, Josep Maria; Biel Solé, Domingo; Fossas Colet, Enric (2013-11)
    Article
    Restricted access - publisher's policy
    Lyapunov-based controlled boost converters have a unique equilibrium point, which is globally asymptotically stable, for known resistive loads. This article investigates the dynamic behaviors that appear in the system when ...
  • Big-bang bifurcations in a first order system with a relay 

    Fossas Colet, Enric; Granados, Albert (2011)
    Conference report
    Restricted access - publisher's policy
    In this work we describe the bifurcation scenario found in a general first order system when a relay based proportional control is considered. We show the existence of a big bang bifurcation causing the existence of an ...
  • Bounding the output error in a buck power converter using perturbation theory 

    Angulo García, Fabiola; Fossas Colet, Enric; Seara, Tere M.; Olivar, Gerard (Hindawi, 2008-07)
    Article
    Open Access
    We show the main results obtained when applying the average theory to Zero Average Dynamic control technique in a buck power converter with pulse-width modulation (PWM). In particular, we have obtained the bound values for ...
  • Cascade sliding mode-PID controller for a coupled-inductor boost converter 

    Carrero Candelas, Niliana Andreina; Batlle Arnau, Carles; Fossas Colet, Enric (2013)
    Conference lecture
    Restricted access - publisher's policy
    In this paper, a coupled-inductor Boost converter is modelled as a piece-wise complementarity system and controlled by means of two loops: a sliding mode control inner loop and an experimentally tuned PID outer loop control. ...
  • Control en modo deslizante con comparador con histéresis y frecuencia de conmutación fija 

    Repecho del Corral, Víctor; Biel Solé, Domingo; Fossas Colet, Enric (2015)
    Conference report
    Restricted access - publisher's policy
    En este artículo se presenta una estructura de control que permite operar a frecuencia de conmutación fija en modo deslizante. La implementación se realiza mediante un comparador de histéresis variable, cuyo valor se ajusta ...
  • Control en modo deslizante de un rectificador monofásico con un filtro LCL 

    Biel Solé, Domingo; Dòria Cerezo, Arnau; Fossas Colet, Enric (Universidad Politécnica de Madrid (UPM), 2013)
    Conference report
    Open Access
    En este artículo se presenta el análisis dinámico y el diseño de un controlador para un rectificador monofásico controlado con un filtro LCL. El algoritmo de control está basado en las técnicas de modos deslizantes que ...