Offshore Wind System in the Way of Energy 4.0: Ride Through Fault Aided by Fractional PI Control and VRFB

  • Rui MelicioEmail author
  • Duarte Valério
  • V. M. F. Mendes
Conference paper
Part of the Springer Proceedings in Mathematics & Statistics book series (PROMS, volume 303)


This chapter presents a simulation of a study to improve the ability of an offshore wind system to recover from a fault due to a rectifier converter malfunction. The system comprises: a semi-submersible platform; a variable-speed wind turbine; a PMSG; a 5LC-MPC; a fractional PI controller using the Carlson approximation. Recovery is improved by shielding the DC link of the converter during the fault using as further equipment a redox vanadium flow battery, aiding the system operation as desired in the scope of Energy 4.0. Contributions are given for: (i) the fault influence on the behavior of voltages and currents in the capacitor bank of the DC link; (ii) the drivetrain modeling of the floating platform by a three-mass modeling; (iii) the vanadium flow battery integration in the system.


Offshore wind system VRFB MPC five-level converter Ride through capability Simulation Energy 4.0 Fractional control 


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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Rui Melicio
    • 1
    • 2
    • 3
    Email author
  • Duarte Valério
    • 2
  • V. M. F. Mendes
    • 3
    • 4
    • 5
  1. 1.ICT, Instituto de Ciências da Terra, Universidade de ÉvoraEvoraPortugal
  2. 2.IDMEC, Instituto Superior Técnico, Universidade de LisboaLisbonPortugal
  3. 3.Departmento de Física, Escola de Ciências e TecnologiaUniversidade de ÉvoraÉvoraPortugal
  4. 4.Department of Electrical Engineering and AutomationInstituto Superior de Engenharia de LisboaLisbonPortugal
  5. 5.CISE, Electromechatronic Systems Research Centre, Universidade da Beira InteriorCovilhaPortugal

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