• An alternative discrete-time model for networked control systems with time delay less than the sampling period 

    Torres Guerrero, Gina; Velasco García, Manel; Martí Colom, Pau; Martín Rull, Enric Xavier; Fuertes Armengol, José Mª (2013)
    Comunicación de congreso
    Acceso restringido por política de la editorial
    The majority of existing Networked Control Systems (NCS) models are discrete-time formulations based on the exact discretization of the continuous-time linear plant over a sample interval. In the state-space formalism, ...
  • Analysis of the effect of clock drifts on frequency regulation and power sharing in inverter-based islanded microgrids 

    Martí Colom, Pau; Torres Martínez, Javier; Rosero, Carlos Xavier; Velasco García, Manel; Miret Tomàs, Jaume; Castilla Fernández, Miguel (2018-02-12)
    Artículo
    Acceso restringido por política de la editorial
    Local hardware clocks in physically distributed computation devices hardly ever agree because clocks drift apart and the drift can be different for each device. This paper analyses the effect that local clock drifts have ...
  • Cálculo de la odometría en un robot cuadrúpedo mediante técnicas de visión artificial 

    Lillo Fantova, Lucía; Velasco García, Manel; Angulo Bahón, Cecilio (2015)
    Comunicación de congreso
    Acceso restringido por política de la editorial
    En una primera fase, se hizo posible publicar las imágenes obtenidas por la cámara del robot AIBO a través del entorno de programacion ROS, un estándar en la programacion de robots moviles. Estas imágenes, pueden ser ...
  • Communication-aware consensus for frequency restoration in islanded microgrids 

    Martí Colom, Pau; Velasco García, Manel; Martín Rull, Enric Xavier; Castilla Fernández, Miguel; Miret Tomàs, Jaume; Camacho Santiago, Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Texto en actas de congreso
    Acceso restringido por política de la editorial
    MicroGrids (MGs) include spatially distributed generation (DG) systems and loads that may require operating autonomously in islanded mode. The operation of islanded MGs can benefit from consensus theory and practice, ...
  • Comparative study of reactive power control methods for photovoltaic inverters in low-voltage grids 

    Momeneh, Arash; Castilla Fernández, Miguel; Miret Tomàs, Jaume; Martí Colom, Pau; Velasco García, Manel (2016-03-01)
    Artículo
    Acceso abierto
    The increasing installation of photovoltaic panels in low-voltage grids causes an over voltage problem, especially during high production and low consumption periods. Generally the over voltage problem is overcome by ...
  • Conectando el Robot AIBO a ROS: Extracción de imágenes 

    Lillo Fantova, Lucía; Téllez Lara, Ricardo; Velasco García, Manel; Angulo Bahón, Cecilio (2015)
    Texto en actas de congreso
    Acceso abierto
    En este documento se realiza una introduccion al trabajo realizado con el robot AIBO, de Sony, para la obtencion de imagenes, asi como su tratamiento con el objetivo que el robot navegue de forma autonoma mediante algoritmos ...
  • Designing a practical course in networked control systems 

    Fuertes Armengol, José Mª; Villa Millaruelo, Ricardo; Ayza Graells, Jordi; Marès Martí, Pere; Martí Colom, Pau; Velasco García, Manel; Yépez Castillo, José Gregorio; Torres Guerrero, Gina; Perelló, Miquel (2012)
    Texto en actas de congreso
    Acceso abierto
    This paper presents a hands-on course in networked control systems (NCS) to be integrated in the education of embedded control systems engineers. The course activities have a strong practical component and most of them are ...
  • Design of a hands-on course in networked control systems 

    Fuertes Armengol, José Mª; Villa Millaruelo, Ricardo; Ayza Graells, Jordi; Marès Martí, Pere; Martí Colom, Pau; Velasco García, Manel; Yépez Castillo, José Gregorio; Torres Guerrero, Gina (2012-01-17)
    Report de recerca
    Acceso abierto
    This report presents a hands-on course in networked control systems (NCS) to be integrated in the education of embedded control systems engineers. The course activities have a strong practical component and most of them ...
  • Design of an embedded control system laboratory experiment 

    Martí Colom, Pau; Velasco García, Manel; Fuertes Armengol, José Mª; Camacho Santiago, Antonio; Buttazzo, Giorgio (IEEE Press. Institute of Electrical and Electronics Engineers, 2010-10-01)
    Artículo
    Acceso restringido por política de la editorial
    This paper presents a prototype laboratory experiment to be integrated in the education of embedded control system engineers. The experiment, a real-time control of a dynamical system, is designed to drive students to a ...
  • Design of an embedded control system laboratory experiment 

    Martí Colom, Pau; Velasco García, Manel; Fuertes Armengol, José Mª; Camacho Santiago, Antonio; Buttazzo, Giorgio (2010-02-08)
    Artículo
    Acceso abierto
  • Distributed reactive power control methods to avoid voltage rise in grid-connected photovoltaic power generation systems 

    Martí Colom, Pau; Velasco García, Manel; Fuertes Armengol, José Mª; Camacho Santiago, Antonio; Miret Tomàs, Jaume; Castilla Fernández, Miguel (2013)
    Texto en actas de congreso
    Acceso restringido por política de la editorial
    A high density of grid-connected photovoltaic (PV) power generation systems is expected to occur in urban areas. The connection of distributed generation (DG) may cause serious problems in the distribution system such ...
  • Efficient utilization of bus idle times in CAN-based networked control systems 

    Martí Colom, Pau; Camacho Santiago, Antonio; Velasco García, Manel; El Mongi Ben Gaid, Mohamed (2010)
    Comunicación de congreso
    Acceso abierto
    This paper presents a novel approach to networked control systems (NCS) analysis and design that provides increased control performance for a set of control loops that exchange control data over the Controller Area Network ...
  • Embedding Kalman techniques in the one-shot task model when non-uniform samples are corrupted by noise 

    Lozoya, Camilo; Romero, Julio; Martí Colom, Pau; Velasco García, Manel; Fuertes Armengol, José Mª (IEEE Press. Institute of Electrical and Electronics Engineers, 2010)
    Texto en actas de congreso
    Acceso abierto
    The performance of several closed-loop systems whose controllers concurrently execute in a multitasking realtime system may be deteriorated due to timing uncertainties in tasks´executions, problem known as scheduling ...
  • Equilibrio del robot AIBO usando DMPs 

    Salord, Lluís; Angulo Bahón, Cecilio; Velasco García, Manel (2015)
    Texto en actas de congreso
    Acceso abierto
    El trabajo presentado se enmarca en una iniciativa global que tiene como objeto la recuperacion de la plataforma robotica AIBO de Sony. Para demostrar las prestaciones de la arquitectura propuesta y la viabilidad del robot ...
  • Equilibrium sampling interval sequences for event-driven controllers 

    Velasco García, Manel; Martí Colom, Pau; Bini, Enrico (2009)
    Texto en actas de congreso
    Acceso restringido por política de la editorial
    Standard discrete-time control laws consider periodic execution of control jobs. Although this assumption simplifies the control design and the resource utilization analysis for later implementation, it leads to a ...
  • Hands-on course in networked control systems 

    Fuertes Armengol, José Mª; Villa Millaruelo, Ricardo; Ayza Graells, Jordi; Marès Martí, Pere; Martí Colom, Pau; Velasco García, Manel; Yepez, J.; Torres Guerrero, Gina; Perello, M. (2012)
    Comunicación de congreso
    Acceso restringido por política de la editorial
    In many industrial robotic applications there is a need to track periodic reference signals and/or reject periodic disturbances. This paper presents a novel repetitive control design for systems with constant time-delays ...
  • Impact of clock drifts on communication-free secondary control schemes for inverter-based islanded microgrids 

    Castilla Fernández, Miguel; Camacho Santiago, Antonio; Martí Colom, Pau; Velasco García, Manel; Moradi Ghahderijani, Mohammad (Institute of Electrical and Electronics Engineers (IEEE), 2017-11-13)
    Artículo
    Acceso restringido por política de la editorial
    IEEE In inverter-based microgrids, individual inverters operate usually with its own digital processor. The clocks used to generate the time signals of these processors differ from each other due to clock drifts. This paper ...
  • Internet-based control of a ball-and-plate system: a case study of modeling and automatic code generation for networked control systems 

    Torres Guerrero, Gina; Martín Rull, Enric Xavier; Velasco García, Manel; Martí Colom, Pau; Camacho, Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Texto en actas de congreso
    Acceso restringido por política de la editorial
    The evolution of technology and application needs leads to design complex systems both at hardware and software levels. Modeling approaches and automatic code generation are mature techniques in several application areas ...
  • Invariant manifolds as boundaries for event-driven control systems 

    Velasco García, Manel; Martí Colom, Pau (2010)
    Comunicación de congreso
    Acceso abierto
    In event-driven control approaches, control updates are triggered by event conditions that are often characterized by different types of boundaries defined in the state-space domain. In this paper we define an event-driven ...
  • Local secondary control for inverter-based islanded microgrids with accurate active-power sharing under high load conditions 

    Castilla Fernández, Miguel; Camacho Santiago, Antonio; Miret Tomàs, Jaume; Velasco García, Manel; Martí Colom, Pau (Institute of Electrical and Electronics Engineers (IEEE), 2018-06-13)
    Artículo
    Acceso abierto
    Local secondary control has been successfully used to regulate the frequency of inverterbased islanded microgrids without using communications. In this scenario, noticeable steady-state deviations have been observed in ...