Nonlinear Control of an Aerogenerator Including DFIG and AC/DC/AC Converters

  • Aziz WatilEmail author
  • Abdelmounime El magri
  • Abdelhadi Raihani
  • Rachid Lajouad
Conference paper
Part of the Lecture Notes in Intelligent Transportation and Infrastructure book series (LNITI)


This paper addresses the problem of controlling wind energy conversion systems (WECS) involving doubly fed induction generator (DFIG) fed by IGBT based buck-to-buck converters. The main control objective is to maximize wind energy extraction which cannot be achieved without letting the wind turbine rotor operate in variable speed mode. A multiloop nonlinear controller is designed to meet three main control objectives: (i) speed reference optimization in order to extract a maximum wind energy whatever the wind speed by (MPPT) requirement; (ii) power factor correction (PFC) to avoid net harmonic pollution; (iii) regulating the DC Link voltage. A multiloop nonlinear controller is synthesized using the backstepping design technique. To determine the reference torque in order to allow DFIG turning at reference speed, the Sliding mode control approach is convoked. A formal analysis based on Lyapunov stability is carried out to describe the control system performances. In addition to closed-loop global asymptotic stability. It is proven that all control objectives (rotor speed tracking, stator flux regulation, DC link voltage regulation and unitary power factor) are asymptotically achieved.


Wind energy conversion system Doubly fed induction generator Buck-to-buck MPPT Nonlinear control 


  1. 1.
    Lajouad, R., El Magri, A., El Fadili, A., Chaoui, F.-Z., Giri, F.: Adaptive nonlinear control of wind energy conversion system involving induction generator. Asian J. Control. (July 2015)Google Scholar
  2. 2.
    Khalil, H.K., Grizzle, J.: Nonlinear Systems, vol. 3. Prentice Hall, Upper Saddle River (2002)Google Scholar
  3. 3.
    Bossoufi, B., Karim, M., Lagrioui, A., Taoussi, M., Derouich, A.: Observer backstepping control of DFIG-Generators for wind turbines variable-speed: FPGA-based implementation. Renew. Energy 81, 903 (2015)CrossRefGoogle Scholar
  4. 4.
    Manwell, J.F., McGowan, J.G., Rogers, A.L.: Wind Energy Explained Theory Design and Application (Chap. 3) Aerodynamics of Wind Turbines (2002)Google Scholar
  5. 5.
    El Magri, A., Giri, F., Abouloifa, A., Chaoui, F.Z.: Robust control of synchronous motors through AC/DC/AC converters. Control. Eng. PractGoogle Scholar
  6. 6.
    Kerrouche, K., Mezouar, A., Belgacem, Kh: Decoupled control of doubly fed induction generator by vector control for wind energy conversion system. Energy Procedia 42, 239 (2013)CrossRefGoogle Scholar
  7. 7.
    Poitiers, F., Bouaouiche, T., Machmoum, M.: Advanced control of a doubly fed induction generator for wind energy conversion. Electr. Power Syst. Res. 79, 1085 (2009)CrossRefGoogle Scholar
  8. 8.
    El Fadili, A., Giri, F., El Magri, A.: Control models for induction motors. In: Giri, F. (ed) AC Electric Motors Control Advanced Design Techniques and Applications (Chap. 2). University of Caen Basse-Normandie, FranceGoogle Scholar
  9. 9.
    El Magri, A., Giri, F., Besanc-on, G., El Fadili, A., Dugard, L., Chaoui, F.Z.: Sensorless adaptive output feedback control of wind energy systems with PMS generators. Control. Eng. Pract. 21, 530 (2013)CrossRefGoogle Scholar
  10. 10.
    Liu, Y., Wang, Z., Xiong, L., Wang, J., Jiang, X., Bai, G., Li, R., Liu, S.: DFIG wind turbine sliding mode control with exponential reaching law under variable wind speed. Electr. Power Energy Syst. 98 (2018)Google Scholar
  11. 11.
    Chen, C.X., Xie, Y.X., Lan, Y.H.: Backstepping control of speed sensorless permanent magnet synchronous motor based on slide model observer. Int. J. Autom. Comput. 12(2), 149–155 (2015)CrossRefGoogle Scholar
  12. 12.
    Elfadili, A., Giri, F., El Magri, A., Dugard, L.: Nonlinear Controller for Doubly Fed Induction Motor with Bi-Directional AC/DC/AC Converter (Chap. 13) AC electric motors control advanced design techniques and applicationsGoogle Scholar
  13. 13.
    Bekakra, Y., Ben Attous, D.: Speed and flux control for DFOC of doubly fed induction machine. Acta Electrotech. Inform. 10, 74 (2010)Google Scholar
  14. 14.
    El Fadili, A., Giri, F., El Magri, A., Dugard, L., Chaoui, F.Z.: Adaptive nonlinear control of induction motors through AC/DC/AC converters. Asian J. Control. 14(6), 1470 (2012)MathSciNetCrossRefGoogle Scholar

Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Aziz Watil
    • 1
    Email author
  • Abdelmounime El magri
    • 1
  • Abdelhadi Raihani
    • 1
  • Rachid Lajouad
    • 1
  1. 1.SSDIA Laboratory, ENSET MohammediaHassan II University CasablancaMohammediaMorocco

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