TY - JOUR
T1 - Event-triggered adaptive neural fault-tolerant control for a 2-DOF helicopter system with prescribed performance
AU - Zhao, Zhijia
AU - Zhang, Jian
AU - Liu, Zhijie
AU - Li, Han-Xiong
AU - Philip Chen, C. L.
PY - 2024/4
Y1 - 2024/4
N2 - In this paper, we focus on an event-triggered adaptive neural fault-tolerant control for a two-degree of freedom (2-DOF) helicopter system with actuator failures. In this design, a radial basis function neural network (NN) is exploited to estimate the uncertainty terms present in the system. A new error transformation technique is employed to make the tracking error of the system satisfy a prescribed performance function. Then, an event triggering mechanism is introduced to reduce the communication burden of the system. Smoothing functions and bounded estimation methods are then used to compensate for actuator failures and measurement errors. The helicopter system is proved to be consistently bounded by the direct method of Lyapunov functions. Finally, simulation and experimental results verify the effectiveness of the control strategy. © 2024 Elsevier Ltd
AB - In this paper, we focus on an event-triggered adaptive neural fault-tolerant control for a two-degree of freedom (2-DOF) helicopter system with actuator failures. In this design, a radial basis function neural network (NN) is exploited to estimate the uncertainty terms present in the system. A new error transformation technique is employed to make the tracking error of the system satisfy a prescribed performance function. Then, an event triggering mechanism is introduced to reduce the communication burden of the system. Smoothing functions and bounded estimation methods are then used to compensate for actuator failures and measurement errors. The helicopter system is proved to be consistently bounded by the direct method of Lyapunov functions. Finally, simulation and experimental results verify the effectiveness of the control strategy. © 2024 Elsevier Ltd
KW - 2-DOF helicopter
KW - Actuator failures
KW - Adaptive NN control
KW - Event-triggered control
KW - Prescribed performance
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U2 - 10.1016/j.automatica.2024.111511
DO - 10.1016/j.automatica.2024.111511
M3 - RGC 21 - Publication in refereed journal
SN - 0005-1098
VL - 162
JO - Automatica
JF - Automatica
M1 - 111511
ER -