Ara es mostren els items 49-68 de 74

    • Odd-harmonic repetitive control of an active filter under varying network frequency: a small-gain theorem-based stability analysis 

      Olm Miras, Josep Maria; Ramos Fuentes, Germán Andrés; Costa Castelló, Ramon; Cardoner Parpal, Rafel (2010)
      Text en actes de congrés
      Accés restringit per decisió de l'autor
      This work deals with the design and analysis of a controller for a shunt active power filter. The design is based on combined feedforward and feedback actions, the last using repetitive control, and aims at the obtention ...
    • Odd-harmonic repetitive control of an active filter under varying network frequency: control design and stability analysis 

      Olm Miras, Josep Maria; Ramos Fuentes, Germán Andrés; Costa Castelló, Ramon; Cardoner Parpal, Rafel (IEEE Press. Institute of Electrical and Electronics Engineers, 2010)
      Text en actes de congrés
      Accés obert
      This work deals with the design and analysis of a controller for a shunt active power filter. The design is based on combined feedforward and feedback actions, the last using repetitive control, and aims at the obtention ...
    • Odd-harmonic Repetitive Control of an Active Filter under Varying Network Frequency: Practical Considerations 

      Costa Castelló, Ramon; Olm Miras, Josep Maria; Ramos Fuentes, Germán Andrés; Cardoner Parpal, Rafel (2010)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This work deals with the design and analysis of a controller for a shunt active power filter. The design is based on combined feedforward and feedback actions, the last using oddharmonic repetitive control, and aims at ...
    • On average real sliding dynamics in linear systems 

      Olm Miras, Josep Maria; Biel Solé, Domingo; Repecho del Corral, Víctor; Shtessel, Yuri B. (2017-07-01)
      Article
      Accés obert
      It is well known that in implementations of sliding mode controllers using hysteresis comparators, when the hysteresis band amplitude tends to zero the real dynamics tends to the ideal sliding dynamics. However, in real ...
    • Open loop testing for optimizing the closed loop operation of chemical systems 

      Domínguez Pumar, Manuel; Olm Miras, Josep Maria; Kowalski, Lukasz; Jiménez Serres, Vicente (Pergamon Press, 2020-04-06)
      Article
      Accés obert
      One way to optimize the operation of chemical systems consists on using closed loop controls while the system is operated. This way, it is possible to optimize the operating point in the plant, process or chemical system ...
    • Passivity-based control of multi-terminal HVDC systems under control saturation constraints 

      Dòria Cerezo, Arnau; Olm Miras, Josep Maria; Scherpen, Jacquelien M.A. (2015)
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      Accés restringit per política de l'editorial
      This paper proposes a decentralized, passivity-based cont rol design for power stations in a multi-terminal High Voltage Direct Current transmissi on system. The control algorithm is shown to asymptotically stabilize the ...
    • Periodic solutions with nonconstant sign in Abel equations of the second kind 

      Olm Miras, Josep Maria; Ros Oton, Xavier; Martínez-Seara Alonso, M. Teresa (2011-09)
      Article
      Accés obert
      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 xmaps ...
    • 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)
      Report de recerca
      Accés obert
      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 ...
    • Precompensated Second Order Repetitive Control of an Active Filter Under Varying Network Frequency 

      Ramos Fuentes, German A.; Costa Castelló, Ramon; Olm Miras, Josep Maria (2015-07-01)
      Article
      Accés obert
      Network frequency variations cause a dramatic performance decay in repetitive controller-based shunt active power filters. This problem may be solved by adapting the sampling period in order to keep the ratio between the ...
    • Rejection of periodic disturbances using MRAC with minimal controller synthesis 

      Larco Barros, Ciro Mauricio; Olm Miras, Josep Maria; Costa Castelló, Ramon (2016)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The tracking/rejection of periodic disturbances in linear systems is achievable via internal model principle-based techniques, such as repetitive control. However, when the frequency of the signal to track/reject is uncertain ...
    • Revisión de control adaptativo por modelo de referencia con síntesis de controlador mínima y aplicación al control de velocidad de un motor DC 

      Larco Barros, Ciro Mauricio; Costa Castelló, Ramon; Olm Miras, Josep Maria (2016)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      En este artículo se revisan los aspectos basicos del Control Adaptativo por Modelo de Referencia con Síntesis de Controlador Mínima, tanto en su version de tiempo continuo como en la de tiempo discreto. A su vez, se ilustran ...
    • Robust high-order repetitive control of an active filter using an odd-harmonic internal model 

      Ramos Fuentes, Germán Andrés; Costa Castelló, Ramon; Olm Miras, Josep Maria; Cardoner Parpal, Rafel (2010)
      Text en actes de congrés
      Accés obert
      Shunt active power filters have proven to be an efficient means to compensate for the negative effects of nonlinear and reactive loads on the power quality of the electrical distribution network. In this context, the ...
    • Robust sliding mode control of a DC/DC Boost converter with switching frequency regulation 

      Repecho del Corral, Víctor; Biel Solé, Domingo; Olm Miras, Josep Maria; Fossas Colet, Enric (2018-01-01)
      Article
      Accés restringit per política de l'editorial
      This paper presents the design of a hysteresis band controller to regulate the switching frequency in a sliding mode controlled nonlinear Boost power converter. The proposed architecture relies on a piecewise linear modeling ...
    • Robust step-up DC/AC conversion with a full-bridge non-inverting buck-boost 

      Biel Solé, Domingo; Fossas Colet, Enric; Olm Miras, Josep Maria (Institute of Electrical and Electronics Engineers, 2007)
      Text en actes de congrés
      Accés obert
      The substitution of the original switches by a full-bridge in a Non-Inverting Buck-Boost converter results in an inverter capable of performing step-down and step-up tasks under sliding mode control. Furthermore, semi-infinite ...
    • Secció docent i problemes 

      Cuadras, C.M. (Carlos Maria); Sánchez, P.; Albea Rodríguez, M.; Villar Mesa, E.; Olm Miras, Josep Maria; Morales de Cano, Juan Manuel; Corominas Subias, Albert (Universitat Politècnica de Catalunya. Centre de Càlcul, 1991)
      Article
      Accés obert
      Conté: Problemes proposats; Solucions als problemes proposats al volum 15. Nº 1; Secció docent:"Estudio de la producción de energia electrica de una dinamo movida por una turbina hidraulica mediante ...
    • Self-triggered coverage control for mobile sensors 

      Rodriguez Seda, Erick J.; Xu, Xiaotian; Olm Miras, Josep Maria; Dòria Cerezo, Arnau; Diaz-Mercado, Yancy (Institute of Electrical and Electronics Engineers (IEEE), 2022-08-18)
      Article
      Accés restringit per política de l'editorial
      The deployment and coordination of mobile sensor networks for coverage control applications can present several practical challenges including how to efficiently share limited communication resources and how to reduce ...
    • Sliding mode control of a differential-drive mobile robot following a path 

      Dòria Cerezo, Arnau; Biel Solé, Domingo; Olm Miras, Josep Maria; Repecho del Corral, Víctor (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Text en actes de congrés
      Accés obert
      This paper presents a control algorithm for a differential-drive robot following a path. The main contributions are: a new control formulation that does not require the robot global position, and a nonlinear controller ...
    • Sliding mode control of a voltage source inverter with switching frequency regulation 

      Repecho del Corral, Víctor; Biel Solé, Domingo; Olm Miras, Josep Maria; Fossas Colet, Enric (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This work presents the study of a switching frequency regulation of a sliding mode control under tracking control scheme. A variable hysteresis band with an additional control loop is proposed and the equivalent system is ...
    • Sliding modes in a class of complex-valued nonlinear systems 

      Dòria Cerezo, Arnau; Olm Miras, Josep Maria; Biel Solé, Domingo; Fossas Colet, Enric (2021-07)
      Article
      Accés obert
      A number of physical systems allow a complex-valued representation. This article extends the theory of sliding modes to a class of nonlinear systems described by complex-valued variables. Hence, states, parameters, control ...
    • Sliding motion, robust control and power loss minimization in a class of non-linear switched converters 

      Olm Miras, Josep Maria; Biel Solé, Domingo; Fossas Colet, Enric; Zinober, A.S.I.; Sanz, L. M. (TAYLOR & FRANCIS LTD, 2007-06)
      Article
      Accés obert
      In this paper we propose a sliding mode control scheme that allows robust control of the output voltage in a class of nonlinear switched converters that includes the Non-Inverting Buck-Boost, the Watkins-Johnson and the ...