Exploració per tema "Closed loop systems"

Ara es mostren els items 1-14 de 14

    • A proportional resonant controller tuning method for grid connected power converters with LCL+trap filter 

      Zhang, Weiyi; Mir Cantarellas, Antonio; Remón, D.; Luna Alloza, Álvaro; Rodríguez Cortés, Pedro (2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Three-phase power converters are largely employed in power generation facilities based on renewable energy sources, and these converters commonly working in grid connection mode are frequently connected to the grid through ...

    • Active damping based on Ackermann's formula for a three-phase voltage source inverter with LCL filter 

      Guzmán Solà, Ramon; García de Vicuña Muñoz de la Nava, José Luis; Morales López, Javier; Momeneh, Arash; Miret Tomàs, Jaume; Torres Martínez, Javier (2015)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This paper presents an active damping method in natural frame for a three-phase voltage source inverter with LCL filter. The proposed method is based on the pole placement technique via Ackermann's formula. This approach ...

    • Closed-loop shaping linear control system design: an interactive teaching/learning approach [focus on education] 

      Díaz Martínez, José Manuel; Costa Castelló, Ramon; Dormido Bencomo, Sebastián (2019-10-01)
      Article
      Accés obert
      The frequency domain is one of the most popular and powerful frameworks for designing control systems. Usually, the controller is designed by working on the openloop transfer function. However, it is also possible to design ...

    • Digital Repetitive Control of a Three-Phase Four-Wire Shunt Active Filter 

      Griñó Cubero, Robert; Cardoner Parpal, Rafel; Costa Castelló, Ramon; Fossas Colet, Enric (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2007-06-30)
      Article
      Accés obert
      Shunt active power filters have been proved as useful elements to correct distorted currents caused by nonlinear loads in power distribution systems. This paper presents an all-digital approach based on a particular ...

    • Negative-sequence voltage elimination for distributed generators in grid-feeding operation mode 

      Rey López, Juan Manuel; Castilla Fernández, Miguel; Miret Tomàs, Jaume; Velasco García, Manel; Martí Colom, Pau; Mojica Nava, Eduardo (2020-07-24)
      Article
      Accés obert
      A major concern of the power quality in distributed systems is related to the mitigation of voltage imbalances. This function can be implemented directly in the control system of the distributed generation power converters ...

    • On modelling approaches for receding-horizon control design applied to large-scale sewage systems 

      Ocampo-Martínez, Carlos; Puig Cayuela, Vicenç (2009)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      In this paper, receding horizon control of largescale sewage systems is addressed considering different modelling approaches, which include several inherent continuous/ discrete phenomena (overflows in sewers and tanks) ...

    • Preliminary approach to Lyapunov sampling in CAN-based networked control systems 

      Yépez Castillo, José Gregorio; Lozoya, Camilo; Velasco García, Manel; Martí Colom, Pau; Fuertes Armengol, José Mª (IEEE Press. Institute of Electrical and Electronics Engineers, 2009)
      Text en actes de congrés
      Accés obert
      This paper presents a preliminary approach to networked control systems (NCS) that relies on an event-driven control method based on Lyapunov sampling. The goal is to study and develop approaches for NCS capable of offering ...

    • Quality of transmission estimator retraining for dynamic optimization in optical networks 

      Mahajan, Ankush; Christodoulopoulos, Konstantinos; Martínez Rivera, Ricardo Victor; Muñoz González, Raül; Spadaro, Salvatore (Institute of Electrical and Electronics Engineers (IEEE), 2021-04-01)
      Article
      Accés obert
      Optical network optimization involves an algorithm and a physical layer model (PLM) to estimate the quality of transmission of connections while examining candidate optimization operations. In particular, the algorithm ...

    • Remote bistatic receiver synchronization using DLL techniques 

      Aguasca Solé, Alberto; Broquetas Ibars, Antoni; Fernández de Muniain Comajuncosa, Javier (Institute of Electrical and Electronics Engineers (IEEE), 1992)
      Text en actes de congrés
      Accés obert
      Pulse to pulse staggering in the pulse reference interval (PRI), usually used to increase the radar unambiguous range and MTI blind speeds, complicates notably the synchronization of the pulsed waveform. A free running ...

    • Reset control of boost converters 

      Raveendran Nair, Unnikrishnan; Costa Castelló, Ramon; Baños Torrico, Alfonso (2018)
      Text en actes de congrés
      Accés obert
      The goal of this work is to apply the framework of reset systems, in particular PI+CI controllers, in the controller design for power converters. While the PI+CI controller has been applied in several industrial applications, ...

    • Robust and fast sliding-mode control for a DC-DC current-source parallel-resonant converter 

      Moradi Ghahderijani, Mohammad; Castilla Fernández, Miguel; Momeneh, Arash; Miret Tomàs, Jaume; García de Vicuña Muñoz de la Nava, José Luis (2018-02-20)
      Article
      Accés obert
      Modern DC-DC resonant converters are normally built around a voltage-source series-resonant converter. This study aims to facilitate the practical use of current-source parallel-resonant converters due to their outstanding ...

    • Robust controller for a full-bridge rectifier using the IDA approach and GSSA modeling 

      Gaviria, César; Fossas Colet, Enric; Griñó Cubero, Robert (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2005-03)
      Article
      Accés obert
      An interconnection-and-damping assignment passivity-based control (IDA-PBC) for a full-bridge rectifier is presented in this paper. The closed-loop system performance fulfils unity power factor in the ac mains and output ...

    • Robust power allocation algorithms for MIMO OFDM systems with imperfect CSI 

      Rey Micolau, Francesc; Lamarca Orozco, M. Meritxell; Vázquez Grau, Gregorio (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2005-03-31)
      Article
      Accés obert
      This paper presents a Bayesian approach to the design of transmit prefiltering matrices in closed-loop schemes robust to channel estimation errors. The algorithms are derived for a multiple-input multiple-output (MIMO) ...

    • Sliding mode control of LCL full-bridge rectifiers 

      Dòria Cerezo, Arnau; Biel Solé, Domingo; Fossas Colet, Enric (2016-07-01)
      Capítol de llibre
      Accés restringit per política de l'editorial
      In control theory, sliding mode control, or SMC, is a nonlinear control method that alters the dynamics of a nonlinear system by application of a discontinuous control signal that forces the system to "slide" along a ...