Title: Fuzzy fault-tolerant control for doubly fed induction generator in wind energy conversion system

Authors: Samir Abdelmalek; Ahmad Taher Azar; Djalel Dib

Addresses: Faculty of Technology, Department of Electronics, Hassiba Benbouali University of Chlef, Algeria ' College of Computer and Information Sciences, Prince Sultan University, Riyadh, Saudi Arabia; Faculty of Computers and Artificial Intelligence, Benha University, Egypt ' Department of Electrical Engineering, University Larbi Tebessi, Tebessa 12002, Algeria

Abstract: Fault-tolerant control systems have received considerable interest in academic researches area. This paper presents an efficient fault-tolerant control of additive voltage measurement faults (AVMFs) of a controlled doubly-fed induction generator (DFIG) driven wind energy conversion system (WECS). First, the nonlinear model of a DFIG is transformed into an equivalent Takagi-Sugeno (T-S) fuzzy model by using the sector nonlinear approach (SNA). Then, based on the obtained model of the generator, a new FTC strategy is proposed in order to ensure the nominal performances and stability of the plant while the occurrence of AVMFs and noisy outputs (NOs). Furthermore, the proposed FTC strategy is combined of a fuzzy proportional integral observer, nominal and faulty system. In addition, the stability of the closed-loop system is demonstrated by means of Lyapunov analyses which are formulated in terms of linear matrix inequalities (LMIs) to prove the stability of the whole closed-loop system and to reduce the actuator faults effects and noisy outputs attenuation. Finally, simulation has been performed in MATLAB/Simulink environment to highlight the designed FTC strategy performances and robustness with respect to AVMFs occurrence.

Keywords: fault-tolerant control; additive voltage measurement faults AVMFs; observer; doubly-fed induction generator; DFIG; fuzzy proportional integral observer.

DOI: 10.1504/IJAIP.2021.117608

International Journal of Advanced Intelligence Paradigms, 2021 Vol.20 No.1/2, pp.38 - 57

Received: 19 Aug 2017
Accepted: 23 Sep 2017

Published online: 16 Sep 2021 *

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