Finite-time adaptive fault-tolerant control for strict-feedback nonlinear systems

2019 ◽  
Author(s):  
Huanqing WANG ◽  
Wen BAI
Keyword(s):  
Nonlinear Systems ◽  
Finite Time ◽  
Fault Tolerant ◽  
Fault Tolerant Control ◽  
Strict Feedback

scholarly journals Event-Triggered Adaptive Fault Tolerant Control for a Class of Uncertain Nonlinear Systems

Entropy ◽  
2020 ◽  
Vol 22 (6) ◽  
pp. 598 ◽  
Author(s):  
Chenglong Zhu ◽  
Chenxi Li ◽  
Xinyi Chen ◽  
Kanjian Zhang ◽  
Xin Xin ◽  
...  
Keyword(s):  
Nonlinear Systems ◽  
Control Problem ◽  
Control Strategy ◽  
Fault Tolerant ◽  
Fault Tolerant Control ◽  
Lyapunov Theory ◽  
Sensor Data ◽  
Adaptive Backstepping ◽  
Event Triggered ◽  
Strict Feedback

This paper considers an adaptive fault-tolerant control problem for a class of uncertain strict feedback nonlinear systems, in which the actuator has an unknown drift fault and the loss of effectiveness fault. Based on the event-triggered theory, the adaptive backstepping technique, and Lyapunov theory, a novel fault-tolerant control strategy is presented. It is shown that an appropriate comprise between the control performance and the sensor data real-time transmission consumption is made, and the fault-tolerant tracking control problem of the strict feedback nonlinear system with uncertain and unknown control direction is solved. The adaptive backstepping method is introduced to compensate the actuator faults. Moreover, a new adjustable event-triggered rule is designed to determine the sampling state instants. The overall control strategy guarantees that the output signal tracks the reference signal, and all the signals of the closed-loop systems are convergent. Finally, the fan speed control system is constructed to demonstrate the validity of the proposed strategy and the application of the general systems.

Sign in / Sign up

Export Citation Format

Share Document