An Active Fault-Tolerant Control Approach to Wind Turbine Torque Load Control against Actuator Faults

2014 ◽  
Author(s):  
Hamed Badihi ◽  
Youmin Zhang ◽  
Henry Hong
Keyword(s):  
Wind Turbine ◽  
Active Fault ◽  
Fault Tolerant ◽  
Fault Tolerant Control ◽  
Load Control ◽  
Actuator Faults ◽  
Control Approach ◽  
Torque Load ◽  
Active Fault Tolerant Control

Active fault-tolerant control approach design for rigid spacecraft with multiple actuator faults

2018 ◽  
Vol 232 (10) ◽  
pp. 1365-1378 ◽  
Author(s):  
Zhifeng Gao ◽  
Peng Cheng ◽  
Moshu Qian ◽  
Guoping Jiang ◽  
Jinxing Lin
Keyword(s):  
Active Fault ◽  
Actuator Saturation ◽  
Fault Tolerant ◽  
Fault Tolerant Control ◽  
Actuator Fault ◽  
Actuator Faults ◽  
Control Approach ◽  
Control Scheme ◽  
Rigid Spacecraft ◽  
Active Fault Tolerant Control

In this study, the active fault-tolerant control problem is investigated for a rigid spacecraft in the presence of inertia uncertainty, external disturbance, multiple actuator faults and actuator saturation. The attitude system model of spacecraft and actuator fault model are first given. A sliding mode–based fault detection observer and a radial basis function neural networks–based fault estimation observer are designed to detect the time of actuator fault occurred and estimate the amplitude of unknown fault, respectively. On that basis, an active fault-tolerant control scheme is proposed to accommodate the effects of multiple actuator faults, and it guarantees that the state trajectory of attitude systems without actuator saturation converges to a neighborhood of the origin in finite time. Another active fault-tolerant control scheme is further proposed in actuator saturation constraint case; it ensures that all the closed-loop signals are finite time convergence. Finally, simulation results are given to illustrate the effectiveness of the proposed fault-tolerant control approach.

scholarly journals Active Fault-Tolerant Control of a Quadcopter against Time-Varying Actuator Faults and Saturations Using Sliding Mode Backstepping Approach

2019 ◽  
Vol 9 (19) ◽  
pp. 4010 ◽  
Author(s):  
Ngoc Phi Nguyen ◽  
Sung Kyung Hong
Keyword(s):  
Fault Diagnosis ◽  
Active Fault ◽  
Fault Tolerant ◽  
Sliding Mode ◽  
Fault Tolerant Control ◽  
Lyapunov Theory ◽  
Fault Estimation ◽  
Time Varying ◽  
Actuator Faults ◽  
Active Fault Tolerant Control

Fault-tolerant control is becoming an interesting topic because of its reliability and safety. This paper reports an active fault-tolerant control method for a quadcopter unmanned aerial vehicle (UAV) to handle actuator faults, disturbances, and input constraints. A robust fault diagnosis based on the H ∞ scheme was designed to estimate the magnitude of a time-varying fault in the presence of disturbances with unknown upper bounds. Once the fault estimation was complete, a fault-tolerant control scheme was proposed for the attitude system, using adaptive sliding mode backstepping control to accommodate the actuator faults, despite actuator saturation limitation and disturbances. The Lyapunov theory was applied to prove the robustness and stability of the closed-loop system under faulty operation. Simulation results show the effectiveness of the fault diagnosis scheme and proposed controller for handling actuator faults.

scholarly journals Active fault tolerant control for twin wind turbine subject to asymmetric fault

2021 ◽  
Author(s):  
Mariem Makni ◽  
Ihab Haidar ◽  
Jean-Pierre Barbot ◽  
Franck Plestan ◽  
Nabih Feki ◽  
...  
Keyword(s):  
Wind Turbine ◽  
Active Fault ◽  
Fault Tolerant ◽  
Fault Tolerant Control ◽  
Active Fault Tolerant Control

Active fault tolerant control using state-space self-tuning control approach

2006 ◽  
Vol 37 (11) ◽  
pp. 785-797 ◽  
Author(s):  
J. Sh.-H. Tsai ◽  
Y.-Y. Lee ◽  
P. Cofie ◽  
L.-S. Shieh ◽  
X. M. Chen
Keyword(s):  
State Space ◽  
Active Fault ◽  
Fault Tolerant ◽  
Fault Tolerant Control ◽  
Control Approach ◽  
Self Tuning ◽  
Active Fault Tolerant Control
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