Now showing items 25-36 of 43

    • The Growing state of distributed generation and microgrids in the Ibero-American region: a view from the RIGMEI network 

      Castilla Fernández, Miguel; Gomes, Mario; Mercado, Pedro; Moreira, Carlos; Negroni Vera, Juan José; Sosa, Jorge; Zambroni de Sousa, Antonio Carlos (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Conference lecture
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      The Ibero-American Network of Distributed Generation and Intelligent Electrical Microgrids is a thematic network of the CYTED programme that performs cooperation activities between leading companies and research groups ...
    • Mixing local and distributed reactive power control for balancing inverters’ effort in grid-connected photovoltaic systems 

      Velasco García, Manel; Martí Colom, Pau; Camacho Santiago, Antonio; Miret Tomàs, Jaume; Castilla Fernández, Miguel (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Conference lecture
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      Reactive power control methods have been proven to be a successful technique for maintaining voltages of photo-voltaic (PV) distributed generators (DG) within the admissible limits without enforcing to reduce the production ...
    • Control strategies based on effective power factor for distributed generation power plants during unbalanced grid voltage 

      Camacho Santiago, Antonio; Castilla Fernández, Miguel; Miret Tomàs, Jaume; Matas Alcalá, José; Guzmán Solà, Ramon; de Sousa Pérez, Óscar; Martí Colom, Pau; García de Vicuña Muñoz de la Nava, José Luis (2013)
      Conference report
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      Unbalanced voltages in three-phase power systems is a common perturbation propagated along the grid. Distributed Generation plants have gained widespread attention due to their capability to improve power quality in a ...
    • Power sharing control in islanded microgrid using event driven communication 

      de Sousa Pérez, Óscar; Miret Tomàs, Jaume; Camacho Santiago, Antonio; Martí Colom, Pau; Guzmán Solà, Ramon (2013)
      Conference report
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      This paper presents a novel power sharing control strategy for islanded mode microgrids (MG). The goal is to enable renewable power sources connected to the point of com- mon coupling (PCC) through three-phase three-wire ...
    • Active damping control for a three phase grid-connected inverter using sliding mode control 

      Guzmán Solà, Ramon; García de Vicuña Muñoz de la Nava, José Luis; Camacho Santiago, Antonio; Matas Alcalá, José; Castilla Fernández, Miguel; Miret Tomàs, Jaume (2013)
      Conference report
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      This paper proposes a ne w active damping method based on virtual resistors for three-phase grid connected voltage source inverters (VSI) with LCL filter. The use of this filters is a standard solution to provide the ...
    • 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)
      Conference report
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      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 ...
    • Secondary control for reactive power sharing in droop-controlled islanded microgrids 

      Micallef, A.; Apap, Maurice; Spiteri Staines, C.; Guerrero Zapata, Josep Maria (2012)
      Conference lecture
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      This paper focuses on the islanded operation of microgrids. In this mode of operation, the microsources are required to cooperate autonomously to regulate the local grid voltage and frequency. Droop control is typically ...
    • Fast grid synchronization technique based on a multiple cascaded general integrator scheme for distributed generation inverters 

      Matas Alcalá, José; Castilla Fernández, Miguel; García de Vicuña Muñoz de la Nava, José Luis; Miret Tomàs, Jaume; Alarcón Gallo, Eduardo; Camacho Santiago, Antonio (2012)
      Conference report
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      This paper proposes a new structure for grid synchronization based on generalized integrators (GI) that lead to fast detection of positive and negative components of the grid voltage. The GI are used as a band pass ...
    • Coordinated reactive power control for static synchronous compensators under unbalanced voltage sags 

      Castilla Fernández, Miguel; Miret Tomàs, Jaume; Camacho Santiago, Antonio; Matas Alcalá, José; Alarcón Gallo, Eduardo; García de Vicuña Muñoz de la Nava, José Luis (2012)
      Conference report
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      Unbalanced voltage sags strongly deteriorate the performance of power converters and electrical machines connected to the distribution network. In particular, a reduction of the power quality is noticed in these equipments, ...
    • Voltage harmonic compensation of a microgrid operating in islanded and grid-connected modes 

      Savaghevi, Mehdi; Jalilian, A.; Vásquez Quintero, Juan Carlos; Guerrero Zapata, Josep Maria; Lee, Tzung-Lin (IEEE Press. Institute of Electrical and Electronics Engineers, 2011)
      Conference report
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      In this paper, a method for voltage harmonic compensation in a microgrid operating in islanded and grid-connected modes is presented. Harmonic compensation is done through proper control of distributed generators (DGs) ...
    • Modeling, analysis, and design of stationary reference frame droop controlled parallel three-phase voltage source inverters 

      Vásquez Quintero, Juan Carlos; Guerrero Zapata, Josep Maria; Savaghevi, Mehdi; Teodorescu, Remus (IEEE, 2011)
      Conference report
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      Power electronics based microgrids consist of a number of voltage source inverters (VSIs) operating in parallel. In this paper, the modeling, control design, and stability analysis of three-phase VSIs are derived. The ...
    • Networked sliding mode control of the double integrator system using the event-driven self-triggered approach 

      Martí Colom, Pau; Velasco García, Manel; Camacho Santiago, Antonio; Martín Rull, Enric Xavier; Fuertes Armengol, José Mª (2011)
      Conference lecture
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      Sliding mode control (SMC) methods rely on applying a high-frequency switching control. In networked control systems (NCS), high-frequency operations/transactions are not desirable because communication bandwidth consumption ...