Now showing items 1-9 of 9

    • An adaptive disturbance rejection control scheme for voltage regulation in DC micro-grids 

      Raveendran Nair, Unnikrishnan; Costa Castelló, Ramon; Ramos Fuentes, German A. (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Conference report
      Open Access
      Uncertain generation by renewable sources and load variations have resulted in adding energy storage systems in the grid to maintain grid parameters (voltage, frequency) within prescribed limits. The disturbances being ...
    • Comparison of different repetitive control architectures: synthesis and comparison. Application to VSI Converters 

      Ramos Fuentes, German A.; Costa Castelló, Ramon (2018-12-01)
      Article
      Open Access
      Repetitive control is one of the most used control approaches to deal with periodic references/disturbances. It owes its properties to the inclusion of an internal model in the controller that corresponds to a periodic ...
    • Different architectures to develop repetitive controllers 

      Sanz i López, Víctor; Costa Castelló, Ramon; Ramos Fuentes, German A. (2017)
      Conference report
      Open Access
      In this work several architectures to implement repetitive controllers are compared. A complete analytical analysis is performed for these dierent architectures and a simulation example with a power converter is included.
    • Different architectures to develop repetitive controllers 

      Sanz López, Víctor; Costa Castelló, Ramon; Ramos Fuentes, German A. (2017-07-01)
      Article
      Open Access
      In this work several architectures to implement repetitive controllers are compared. A complete analytical analysis is performed for these different architectures and a simulation example with a power converter is included
    • Iterative learning control experimental results in twin-rotor device 

      Mascaró Palliser, Ruben; Costa Castelló, Ramon; Ramos Fuentes, German A. (2017)
      Article
      Open Access
      This paper presents the results of applying the Iterative Learning Control algorithms to a Twin-Rotor Multiple-Input Multiple-Output System (TRMS) in order to achieve high performance in repetitive tracking of trajectories. ...
    • Optimal anti-windup synthesis for repetitive controllers 

      Ramos Fuentes, German A.; Costa Castelló, Ramon (2013-09)
      Article
      Restricted access - publisher's policy
      Repetitive controllers use internal models that provide very high gain at a selected fundamental fre- quency and its harmonics, additionally, some of the internal models may result unstable, as in the high order repetitive ...
    • Power active filter control based on a resonant disturbance observer 

      Ramos Fuentes, German A.; Cortés Romero, John Alexander; Zou, ZhiXiang; Costa Castelló, Ramon; Zhou, Keliang (2015-04-01)
      Article
      Open Access
      Active filters are power electronics devices used to eliminate harmonics from the distribution network. This article presents an active disturbance rejection control scheme for active filters. The controller is based on a ...
    • 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
      Open Access
      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 ...
    • Robust repetitive control of power inverters for standalone operation in DG systems 

      Ramos Fuentes, German A.; Costa Castelló, Ramon; Isaza Ruget, Ricardo (2020-03-01)
      Article
      Open Access
      Standalone operation of an inverted-based distributed generation unit is performed in voltage control mode. In this mode, it is important that the controller provides tracking and rejection of periodic signals. Strategies ...