International Journal of Power Electronics and Drive Systems (IJPEDS) Vol. 14, No. 3, September 2023, pp. 1382~1393 ISSN: 2088-8694, DOI: 10.11591/ijpeds.v14.i3.pp 1382-1393  1382 Journal homepage: http://ijpeds.iaescore.com Fault tolerant control for DFIG wind turbine controlled by ADRC and optimized by genetic algorithm Ikram Aissaoui 1 , Noureddine Elmouhi 1,2 , Ahmed Essadki 2 , Hind Elaimani 1,2 1 Research Center of Engineering and Health Sciences and Technologies (STIS), Ecole Nationale Supérieure d’Arts et Métiers (ENSAM), Mohammed V University, Rabat, Morocco 2 Laboratory of Innovation in Management and Engineering for Enterprise (LIMIE), Institut Supérieur d’Ingénierie et des Affaire s (ISGA Rabat), Rabat, Morocco Article Info ABSTRACT Article history: Received Apr 19, 2022 Revised May 1, 2023 Accepted May 12, 2023 This research work deals with the modelling, control and simulation of a wind turbine based on the doubly fed induction generator (DFIG) in the current sensor’s failure event. We present in the first time the model of the wind energy conversion system based on the DFIG and the control by active disturbances rejection control (ADRC) optimized by genetic algorithm. Particular focus is directed towards on a technique for detection, identification, isolation and reconfiguration of current sensor signals after failure. The combination of the two preceding techniques makes it possible to have a fault tolerant control to sensor faults which ensures continuity of service in all circumstances. The robustness of the proposed technique is tested under the MATLAB/Simulink environment. Keywords: ADRC DFIG Fault tolerant control Genetic algorithm Wind turbine This is an open access article under the CC BY-SA license. Corresponding Author: Noureddine Elmouhi Research Center of Engineering and Health Sciences and Technologies (STIS) Ecole Nationale Supérieure d’Arts et Métiers (ENSAM), Mohammed V University Rabat, Morocco Email: n.elmouhi@gmail.com NOMENCLATURE Φrdq : Rotor fluxes irdq : Rotor currents dq axis Vsdq : Stator voltages dq axis ωs : Rotor angular frequency Vrdq : Rotor voltages dq axis ωr : Stator angular frequency isdq : Stator currents dq axis Φrdq : Rotor fluxes 1. INTRODUCTION A real system during its operation can be impacted by faults, which generates a deviation from its normal operation and can cause its instability depending on the fault severity [1]. The variable speed electric drives that exist in wind power generation systems are equipped with sensors either for their protection or for their control [1]. In doubly fed induction generator (DFIG) based wind energy conversion systems, we often find current sensors for the stator and rotor currents, a voltage sensor for measuring the DC link voltage and optionally a speed or position sensor depending on the performance level required by the control method used [1], [2]. The performance level of the DFIG control relies particularly on the quality and accuracy of the feedback signal from the sensors. However, sensors can be weak links in the control loop [3]. The sensor fault would cause a malfunction of the control and lead in most cases to the system shutdown and the wind turbine disconnection.