Now showing items 1-8 of 8

    • A communication-less control scheme for a variable air-gap wireless energy transfer system using current source resonant converter 

      Ghahderijani, Mohammad Moradi; Castilla Fernández, Miguel; Rey López, Juan Manuel; Torres Martínez, Javier; Garnica López, Miguel Andrés (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Conference report
      Restricted access - publisher's policy
      This paper presents a robust control method for wireless energy transfer systems using current source resonant converter without any communication network. The proposed control strategy is valid even for systems with ...
    • Adaptive slope voltage control for distributed generation inverters with improved transient performance 

      Rey López, Juan Manuel; Castilla Fernández, Miguel; Miret Tomàs, Jaume; Camacho Santiago, Antonio; Guzmán Solà, Ramon (2019-04-09)
      Article
      Restricted access - publisher's policy
      Reactive power injection in distributed generation inverters is an useful ancillary service for grid supporting purposes. For grid-feeding converters, the slope control method is the most common voltage regulation strategy ...
    • Control scheme for a multiple-output DC/DC current source parallel resonant converter 

      Ghahderijani, Mohammad Moradi; Castilla Fernández, Miguel; Miret Tomàs, Jaume; Guzmán Solà, Ramon; Rey López, Juan Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Conference report
      Restricted access - publisher's policy
      The aim of this paper is to regulate the output voltages of a multiple-output DC/DC class-D current source parallel resonant converter. To this end, a sliding mode control scheme is presented consisting of an outer voltage ...
    • Enabling grid-feeding converters with a dissonant-resonant controller for negative-sequence voltage elimination 

      Velasco García, Manel; Martí Colom, Pau; Camacho Santiago, Antonio; Rey López, Juan Manuel; Miret Tomàs, Jaume; Castilla Fernández, Miguel (Institute of Electrical and Electronics Engineers (IEEE), 2020-04-01)
      Article
      Open Access
      The mitigation of the adverse effects of voltage unbalance in equipment and power quality can be performed by the power electronic converters that interface distributed generators to the grid. Inspired in a resonant ...
    • Experimental study of clock drift impact over droop-free distributed control for industrial microgrids 

      Torres Martínez, Javier; Castilla Fernández, Miguel; Miret Tomàs, Jaume; Ghahderijani, Mohammad Moradi; Rey López, Juan Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Conference report
      Restricted access - publisher's policy
      It is well-know that in systems composed of several digital processors, clock signals of individual units differ from each other due to clock drifts. This paper investigates the effect of clock drifts from voltage source ...
    • Local frequency restoration for droop-controlled parallel inverters in islanded microgrids 

      Rey López, Juan Manuel; Rosero Chandi, Carlos Xavier; Velasco García, Manel; Martí Colom, Pau; Miret Tomàs, Jaume; Castilla Fernández, Miguel (2018-01-01)
      Article
      Open Access
      In islanded microgrids, voltage source inverters working in parallel are expected to provide regulation of the local frequency while granting active power sharing. This paper presents a local control approach at each ...
    • Modeling, control and design of AC microgrids in islanded mode 

      Rey López, Juan Manuel (Universitat Politècnica de Catalunya, 2016-07-16)
      Doctoral thesis
      Open Access
      The present doctoral thesis is focused on the analysis and design of control strategies for the secondary control layer of islanded AC microgrids without the use of communications. The work is submitted as a compendium of ...
    • 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
      Restricted access - publisher's policy
      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 ...