Browsing by Subject "Nonlinear control theory"
Now showing items 1-20 of 23
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Advances in HOSM Control Design and Implementation for PEM Fuel Cell Systems
(2009)
Conference report
Open AccessA second order sliding mode strategy to control the air supply and oxygen stoichiometry of a fuel cell based generation system is presented. The control design is accomplished from a complete model of a experimental plant ... -
Analysis and Control of a Lur’e System with Sector-Bounded, Slope-Restricted Nonlinearities Using Linear and Bilinear Matrix Inequalities
(Universitat Politècnica de Catalunya, 2020-07-20)
Bachelor thesis
Open Access
Covenantee: Massachusetts Institute of TechnologyL’objectiu d’aquesta tesi és l’anàlisi i el control d’un sistema de Lur’e, és a dir, un sistema amb un camí directe lineal i invariant en el temps i amb una realimentació no lineal estàtica, amb restriccions de sector i ... -
Autonomous inspection of a net cage for fish farms using sonar based sensors and sliding mode control techniques for trajectory tracking
(SARTI, 2024)
Article
Open AccessInspection operations at fish farms are continuous and time-consuming tasks for operators. This task demands significant effort because it typically relies on divers, who are restricted by their limited underwater time and ... -
Control no lineal d’un dispositiu Twin rotor
(Universitat Politècnica de Catalunya, 2019-07-16)
Bachelor thesis
Open AccessEn aquest projecte es presenta l’aplicació d’una tècnica de control anomenada Control per modes lliscants a un equip de laboratori amb una dinàmica semblant a la d’un helicòpter anomenat Twin Rotor MIMO System creat per ... -
Controlling a Quadrotor with a Robotic Arm using Nonlinear Model Predictive Control
(Universitat Politècnica de Catalunya, 2015-01)
Master thesis
Open AccessThis thesis designs a method to control a quadrotor equipped with a robotic arm. The arm has been developed in Institut de Rob otica i Inform atica Industrial (CSIC-UPC), namely here IRI. During the project, an algorithm ... -
Corrigendum to 'On the control of non-linear processes: an IDA-PBC approach' (H. Ramírez et al., Journal of Process Control 19 (1) (2009) 405¿414)
(2010-01)
Article
Restricted access - publisher's policyIn a recent paper [1], the Interconnection and Damping Assignment Passivity-based Control (IDA-PBC) method [2] is studied in the case when the key matching equation is not satisfied. The paper proposes to fix a desired ... -
Design of an unknown input observer for fault diagnosis of non-linear systems with state constraints
(2012)
Conference report
Restricted access - author's decisionThe paper deals with the problem of designing observers for a class of discrete-time nonlinear systems with an unknown input. In particular, with the use of the Lyapunov method, a design procedure of an asymptotically ... -
Design of shifting state-feedback controllers for constrained feedback linearized systems: application to quadrotor attitude control
(2024-03-10)
Article
Open AccessThis paper proposes a shifting feedback linearization controller for nonlinear systems under input saturation. The suggested approach for determining a linear parameter-varying (LPV) state-feedback controller is based on ... -
Exact Linearization Nonlinear Neutral-Point Voltage Control for Single-Phase Three-Level NPC Converters
(2009-10)
Article
Open AccessThis letter proposes a new control scheme for the neutral-point (NP) balance in single-phase three-level NP-clamped converters. The control is addressed considering the plant under study, a nonlinear time-variant system. ... -
Feedback control of limit cycles: a switching control strategy based on nonsmooth bifurcation theory
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2005-02)
Article
Open AccessIn this paper, we present a method to control limit cycles in smooth planar systems making use of the theory of nonsmooth bifurcations. By designing an appropriate switching controller, the occurrence of a corner-collision ... -
Guaranteed cost estimation and control for nonlinear system using LMI optimization
(2016)
Conference report
Restricted access - publisher's policyIn the paper, a methodology for the guaranteed cost estimation and control for nonlinear system discretetime systems is proposed. To solve such a challenging problem, the article starts with a general description of the ... -
H8 control design for mechanisms with backlash
(2009)
Conference lecture
Restricted access - publisher's policyAn H∞ output feedback control design is presented for mechanisms with backlash, under the presence of external perturbation. Using the static dead-zone model as a simpler model for backlash, the non-linear problem is cast ... -
Hands on laboratory for classical nonlinear control systems : the dead-zone case.
(Institute of Electrical and Electronics Engineers (IEEE), 2016)
Conference report
Restricted access - publisher's policyAlthough many control systems are influenced by static non-linearities, most current hands-on laboratories will not show this type of behavior. An analog board module, along with the classic setup plants, would provide a ... -
High-gain interval observer for partially linear systems with bounded disturbances
(2019-01-01)
Article
Open AccessIn this paper, a high-gain interval observer is proposed for a class of partially linear systems affected by unknown but bounded additive disturbances term and measurements noise. The proposed observer is based upon a ... -
Integration of modelica-based models with the JModelica Platform
(Universitat Politècnica de Catalunya / Universität des Saarlandes, 2013)
Bachelor thesis
Open Access
Covenantee: Universität des SaarlandesIn this thesis, an introduction to Nonlinear Model Predictive Control (NMPC) combining both theory and application is presented. The basis of the NMPC is described to give a general idea how this process control strategy ... -
Non-linear model predictive control applied to PEM Fuel Cells: Anode pressure and humidity regulation
(Universitat Politècnica de Catalunya, 2015-06)
Master thesis
Open AccessIn this thesis, a nonlinear model predictive control (NMPC) strategy is proposed to regulate the humidity and pressure in a Proton Exchange Membrane Fuel Cell (PEMFC) anode. The proposed control strategy uses two controllers ... -
Nonlinear control design and averaging analysis of a full-bridge boost rectifier
(2010-01)
Article
Open AccessWe are considering the problem of controlling AC/DC full bridge converters. The control objectives are twofold:(i) guaranteeing a regulated voltage for the supplied load, (ii) enforcing power factor correction (PFC) with ... -
Nonlinearity measures for distributed parameter and descriptor systems
(Elsevier, 2020)
Conference report
Open AccessControl design and state estimation are usually more straightforward for linear than for nonlinear dynamical systems, which has motivated the development of methods for quantifying the extent of nonlinearity in dynamical ... -
Novel airplane roll mechanism implementation in a wind tunnel
(Universitat Politècnica de Catalunya, 2019-09-25)
Bachelor thesis
Open Access
Covenantee: University of California, IrvineAccording to recent research conducted by professor Haithem E. Taha and Ahmed M. Hasan, there is a loss in the control capabilities of the ailerons when flying at stall regime. Not only the sensitivity of this control ... -
Output-feedback IDA stabilisation of an SMIB system using a TCSC
(2010-12-12)
Article
Open AccessInterconnection and damping assignment (IDA) passivity-based control (PBC) is currently a well-known viable alternative for solving regulation control problems of a wide class of nonlinear systems. However, a distinctive feature ...
