Fault-Tolerant Control for Actuator Faults of Wind Energy Conversion System

Guodong You, Tao Xu, Honglin Su, Xiaoxin Hou and Jisheng Li
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Guodong You: College of Electronic Information and Automation, Tianjin University of Science and Technology, Tianjin 300222, China
Tao Xu: College of Electronic Information and Automation, Tianjin University of Science and Technology, Tianjin 300222, China
Honglin Su: College of Electronic Information and Automation, Tianjin University of Science and Technology, Tianjin 300222, China
Xiaoxin Hou: College of Electronic Information and Automation, Tianjin University of Science and Technology, Tianjin 300222, China
Jisheng Li: College of Electronic Information and Automation, Tianjin University of Science and Technology, Tianjin 300222, China

Energies, 2019, vol. 12, issue 12, 1-16

Abstract: The problem of robust fault-tolerant control for actuators of nonlinear systems with uncertain parameters is studied in this paper. Takagi–Sugeno (T-S) fuzzy model is used to describe the wind energy conversion system (WECS). Fuzzy dedicated observer (FDO) and fuzzy proportional integral observer (FPIO) are established to reconstruct the system state and actuator fault, respectively. Fuzzy Robust Scheduling Fault-Tolerant Controller (FRSFTC) is designed by parallel distributed compensation (PDC) method, so as to realize the purpose of active fault tolerance for actuator faults and ensure the robust stability of the system. The stability of the closed-loop system is proved by Taylor series, Lyapunov function, and Linear Matrix Inequalities (LMIs). Finally, the simulation results verify that the proposed method is feasible and effective applied to WECS with doubly fed induction generators (DFIG).

Keywords: WECS; T-S fuzzy; parameter uncertainty; actuator failure; fault-tolerant control (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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