Robust adaptive actuator failure compensation for a class of uncertain nonlinear systems

Adaptive sliding mode synchronisation for fractional‐order non‐linear systems in the presence of time‐varying actuator faults

“…For this purpose, the following assumptions are considered. Assumption 1: [27][28][29][30][31][32][33]: For plant (5) with known plant and fault parameters, if any, up to m − 1 actuators fail as (6), the others may lose effectiveness as (7), the closed-loop system can still be driven to achieve the desired control objective. Assumption 2: There exist some constants α, β, γ > 0 such that Δg Y, t ≤ αg u Y , d t ≤ β and Δ f X, t ≤ γ f u X where g u and f u are positive functions.…”

“…Many valuable types of research and practical results have been achieved in fault compensation for linear [25,26] and non-linear [27][28][29][30][31][32][33][34][35][36][37][38] systems. Adaptive control approaches represent good performance against uncertainties such as uncertain faults [38,39].…”

“…In [28], an adaptive fuzzy compensation controller was presented for a class of stochastic uncertain non-linear systems. In [29][30][31][32][33], the adaptive actuator fault compensation approaches were presented for some classes of non-linear systems based on the backstepping approach. In [34], a robust adaptive fault tolerant controller was proposed for attitude tracking of spacecraft.…”

Design of disturbance observer based on adaptive‐neural control for large‐scale time‐delay systems in the presence of actuator fault and unknown dead zone

“…This fault can lead to the deviation of system parameters and instability. So far, various methods including adaptive approaches have been progressed in this field 8‐14 . Bataghva and Hashemi 8 proposed an adaptive‐neural synchronization scheme for a class of nonlinear fractional order systems in the presence of unknown parameters and time varying actuator faults.…”

Adaptive Fault Compensation and Disturbance Suppression Design for Nonlinear Systems with an Aircraft Control Application

“…A variety of control methods are tested with several profound achievements. Many effective fault-tolerant control methods were reviewed in literatures [1][2][3][4][5]. Multimodel adaptive control methods were employed as a fault compensation in literatures [6][7][8].…”