Sliding Mode Fault Tolerant Control with Prescribed Performance
نویسندگان
چکیده
This paper considered state tracking problem of a class of nonlinear systems with actuator failures and unmodeled dynamics. Based on neural network and Nussbaum function, an adaptive neural network-based fault tolerant control scheme is proposed to ensure the tracking performance to satisfy a given prescribed performance. The problem of unmodeled dynamics is handled by introducing a dynamic signal. Using the properties of Nussbaum function, the problem of the unknown system direction is solved. Theoretical analysis shows that the closed-loop system is semi-globally uniformly bounded. Simulation results illustrate the effectiveness of the scheme.
منابع مشابه
Using Sliding Mode Controller and Eligibility Traces for Controlling the Blood Glucose in Diabetic Patients at the Presence of Fault
Some people suffering from diabetes use insulin injection pumps to control the blood glucose level. Sometimes, the fault may occur in the sensor or actuator of these pumps. The main objective of this paper is controlling the blood glucose level at the desired level and fault-tolerant control of these injection pumps. To this end, the eligibility traces algorithm is combined with the sliding mod...
متن کاملFault tolerant nano-satellite attitude control by adaptive modified nonsingular fast terminal control
In this paper, an adaptive fault tolerant nonlinear control is proposed for attitude tracking problem of satellite with three magnetorquers and one reaction wheel in the presence of inertia uncertainties, external disturbances, and actuator faults. Firstly, sliding surface variable is chosen based on avoiding the singularity of control signal and guaranteeing the convergence of attitude trackin...
متن کاملFault Tolerant Control With Re-Configuring Sliding-Mode Schemes
In this paper, a controller design method for linear MIMO systems is presented which a sliding mode controller is reconfigured in case of system faults. Faults are detected with the residual vector generated from a standard linear observer. Once a fault has been detected the fault distribution matrix can be obtained and used to update the corrective or equivalent control parts of the sliding mo...
متن کاملIntegral sliding mode fault tolerant control schemes with control allocation
Integral Sliding Mode Fault Tolerant Control Schemes with Control Allocation Mirza Tariq Hamayun The key attribute of a Fault Tolerant Control (FTC) system is to maintain overall system stability and acceptable performance in the face of faults and failures within the system. In this thesis new integral sliding mode (ISM) control allocation schemes for FTC are proposed, which have the potential...
متن کاملAn Integrated Fault-tolerant Control for Nonlinear Systems with Multi-fault
This paper presents the integrated fault-tolerant control scheme for nonlinear system with multi-fault. After the unknown faults are estimated online by using the fuzzy credit assignment CMAC (FCACMAC), the effective control law reconfiguration strategy based on the sliding mode control technique is used to compensate for the effect of multifault. For multiple faults scenarios and three-tank sy...
متن کامل