An advanced robust fault-tolerant tracking control for a doubly fed induction generator with actuator faults

Authors : Samir ABDELMALEK, Linda BARAZANE, Abdelkader LARABI

Pages : 1346-1357

View : 8 | Download : 8

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :Fault-tolerant controller insert ignore into journalissuearticles values(FTC); designs for doubly fed induction generators insert ignore into journalissuearticles values(DFIGs); with actuator faults have recently gained considerable attention due to their important role in maintaining the safety and reliability of DFIG-based wind turbines via configured redundancy. The objective of this paper is to propose a novel active fault-tolerant tracking control strategy for a DFIG subject to actuator faults. The proposed strategy consists of first designing a proportional integral observer insert ignore into journalissuearticles values(PIO); for simultaneous system states and fault estimation and then secondly the FTC, which depends on the estimated states and faults. The objective of such a controller is to drive the state of the system to track a reference state generated by a reference fault-free model insert ignore into journalissuearticles values(nominal system);. In addition, the main results for stability are demonstrated through a quadratic Lyapunov function, formulated in terms of linear matrix inequalities insert ignore into journalissuearticles values(LMIs); in order to guarantee the stability of the whole closed-loop system and to reduce the actuator fault effects with noise attenuation. Furthermore, the gain matrices of the FTC and the PIO are computed by solving a set of LMIs using the YALMIP toolbox with the SeDuMi solver. Finally, the simulation results under constant and time-varying actuator faults are provided to show the effectiveness of the developed FTC scheme.
Keywords : Doubly fed induction generator, fault tolerant tracking control, proportional integral observer, actuator faults, linear matrix inequality stability conditions