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  • 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
    Restricted access - publisher's policy
    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 ...

  • Fixed-switching frequency interleaved sliding mode eight-phase synchronous buck converter 

    Repecho del Corral, Víctor; Biel Solé, Domingo; Ramos Lara, Rafael Ramón (Institute of Electrical and Electronics Engineers (IEEE), 2018-01-01)
    Article
    Open Access
    This paper describes the design of an interleaved sliding mode control for a multiphase synchronous buck converter, which inherits the properties of sliding mode control, operates with fixed switching frequency in the ...

  • Lie symmetries of nonrelativistic and relativistic motions 

    Batlle Arnau, Carles; Gomis Torné, Joaquin; Ray, Sourya; Zanelli, Jorge (American Physical Society (APS), 2019-03-15)
    Article
    Open Access
    We study the Lie symmetries of non-relativistic and relativistic higher order constant motions in d spatial dimensions, i.e. constant acceleration, constant rate-of-change -of-acceleration (constant jerk), and so on. In ...

  • Comprehensive high speed automotive SM-PMSM torque control stability analysis including novel control approach 

    Arias Pujol, Antoni; Ibarra Basabe, Edorta; Trancho, Elena; Griñó Cubero, Robert; Kortabarria, Iñigo; Caum Aregay, Jesús (2019-07-01)
    Article
    Restricted access - publisher's policy
    Permanent magnet synchronous machines (PMSM) are widely used in the automotive industry for electric vehicle (EV) and hybrid electric vehicle (HEV) propulsion systems, where the trend is to achieve high mechanical speeds. ...

  • Robust admittance shaping approach to grid current harmonic attenuation and resonance damping 

    Cóbreces Álvarez, Santiago; Wang, Xiongfei; Pérez Serrano, Jorge; Griñó Cubero, Robert; Blaabjerg, Frede (2018-09-01)
    Article
    Open Access
    This paper presents a novel grid current control of a grid-connected voltage source converter with an LCL filter. The proposed control method uses an H 8 synthesis method to shape the input admittance of the converter, to ...

  • Complex-based controller for a three-phase inverter with an LCL filter connected to unbalanced grids 

    Dòria Cerezo, Arnau; Martin Serra, Federico; Bodson, Marc (Institute of Electrical and Electronics Engineers (IEEE), 2018-07-09)
    Article
    Open Access
    A new controller for a grid connected inverter with an LCL filter is proposed in this paper. The system is described by its complex representation and the controller is designed using the complex root locus method. The ...

  • Port-hamiltonian based optimal power flow algorithm for multi-terminal DC networks 

    Benedito Benet, Ernest; del Puerto Flores, Dunstano; Dòria Cerezo, Arnau; Scherpen, Jacquelien M. A (2019-02-01)
    Article
    Restricted access - publisher's policy
    In this paper an algorithm for solving the Optimal Power Flow problem for multi-terminal DC networks based on the gradient method is proposed. The aim is seeking the optimal point subject to voltage, current and power ...

  • Stabilisation of state-and-input constrained nonlinear systems via diffeomorphisms: A Sontag's formula approach with an actual application 

    Acosta Rodríguez, José Ángel; Dòria Cerezo, Arnau; Fossas Colet, Enric (2018-09-10)
    Article
    Restricted access - publisher's policy
    In this work, we provide a new and constructive outlook for the control of state-and-input constrained nonlinear systems. Previously, explicit solutions have been mainly focused on the finding of a barrier-like Lyapunov ...

  • Active damping: an Hinf model reference approach 

    Pérez, Jorge; Cóbreces Álvarez, Santiago; Griñó Cubero, Robert; Huerta, Francisco; Rodríguez, Francisco Javier (Institute of Electrical and Electronics Engineers (IEEE), 2018-08-01)
    Article
    Open Access
    This paper focuses on the design of an active-damping controller that shapes the dynamics of an LCL grid connected voltage source converter (VSC) to mimic an L-filter connected VSC. This makes possible to use simpler ...

  • Reducing the cogging torque effects in hybrid stepper machines by means of resonant controllers 

    Arias Pujol, Antoni; Caum Aregay, Jesús; Ibarra Basabe, Edorta; Griñó Cubero, Robert (Institute of Electrical and Electronics Engineers (IEEE), 2018-06-11)
    Article
    Open Access
    Permanent magnet machines are not free from the interaction between magnets and the stator and rotor slots, which causes an undesired disturbing torque. Such cogging or detent torque is especially larger with salient pole ...

  • Combined production of electricity and hydrogen from solar energy and its use in the wine sector 

    Carroquino, Javier; Roda Serrat, Vicente; Mustata, Radu; Yago, Jesús; Valiño, Luis; Lozano, Antonio; Barreras Toledo, Felix Manuel (2018)
    Article
    Open Access
    In the present research, the energy demanded by the wastewater treatment plant of a winery and the pumping station of the irrigation system of a vineyard is supplied by a stand-alone renewable energy system formed by three ...

  • Fixed Switching Period Discrete-Time Sliding Mode Current Control of a PMSM 

    Repecho del Corral, Víctor; Biel Solé, Domingo; Arias Pujol, Antoni (Institute of Electrical and Electronics Engineers (IEEE), 2017-08-25)
    Article
    Open Access
    A fixed switching period sliding mode control (SMC) for Permanent Magnet Synchronous Machines (PMSMs) is presented. The aim of the paper is to design a SMC that improves the traditional PI based Field Oriented Control (FOC) ...

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