Robust adaptive H∞ fault-tolerant control for uncertain linear systems against actuator failures

2014 ◽  
Author(s):  
Li-Bing Wu ◽  
Zhi-Guo Zhang ◽  
Da-Qing Zhang ◽  
Gui-Zhi Li
Keyword(s):  
Linear Systems ◽  
Fault Tolerant ◽  
Fault Tolerant Control ◽  
Actuator Failures ◽  
Robust Adaptive ◽  
Uncertain Linear Systems

scholarly journals Robust Adaptive Fault-Tolerant Control of Stochastic Systems with Modeling Uncertainties and Actuator Failures

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Wenchuan Cai ◽  
Lingling Fan ◽  
Yongduan Song
Keyword(s):  
Stochastic Systems ◽  
Control Method ◽  
Fault Tolerant ◽  
Negative Impact ◽  
Fault Tolerant Control ◽  
Fault Detection And Diagnosis ◽  
Lyapunov Theory ◽  
Actuator Failures ◽  
Modeling Uncertainties ◽  
Robust Adaptive

This paper deals with the problem of fault-tolerant control (FTC) of uncertain stochastic systems subject to modeling uncertainties and actuator failures. A robust adaptive fault-tolerant controller design method based on stochastic Lyapunov theory is developed to accommodate the negative impact on system performance arising from uncertain system parameters and external disturbances as well as actuation faults. There is no need for on-line fault detection and diagnosis (FDD) unit in the proposed FTC scheme, which not only simplifies the design process but also makes the implementation inexpensive. Numerical examples are provided to validate and illustrate the benefits of the proposed control method.

scholarly journals A Fault Tolerant Control for Sensor and Actuator Failures of an Non Linear Hybrid System

2018 ◽  
Vol 8 (5) ◽  
pp. 2864
Author(s):  
Chalandi Hanene ◽  
Ben Slimane Jihane ◽  
Ksouri Moufida
Keyword(s):  
Linear Systems ◽  
Hybrid System ◽  
Fault Tolerant ◽  
Main Idea ◽  
Fault Tolerant Control ◽  
New Approach ◽  
Actuator Failures ◽  
Research Activities ◽  
Non Linear ◽  
Diagnosis Method

<p>We focused in this work on a fault tolerant control of a non linear hybrid system class based on diagnosis method (determine and locate the defects and their types) and on the faults reconfiguration method.In literature we can found many important research activities over the fault-tolerant control of non linear systems and linear Hybridsystems. But it dosen´t exist too many for the non linear hybridsystem.The main idea in this paper is to consider a new approach to improve the reconfiguration performance of the non linear hybrid system by using hammerstein method which is designed to works only for linear systems. This method compensated the effect of the faults and guarantees the closed-loop system stable. The proposed method is simulated with a hydraulic system of two tanks with 4 modes.</p>

scholarly journals A Fault Tolerant Control for Sensor and Actuator Failures of an Non Linear Hybrid System

2018 ◽  
Vol 8 (5) ◽  
pp. 2864
Author(s):  
Chalandi Hanene ◽  
Ben Slimane Jihane ◽  
Ksouri Moufida
Keyword(s):  
Linear Systems ◽  
Hybrid System ◽  
Fault Tolerant ◽  
Main Idea ◽  
Fault Tolerant Control ◽  
New Approach ◽  
Actuator Failures ◽  
Research Activities ◽  
Non Linear ◽  
Diagnosis Method

<p>We focused in this work on a fault tolerant control of a non linear hybrid system class based on diagnosis method (determine and locate the defects and their types) and on the faults reconfiguration method.In literature we can found many important research activities over the fault-tolerant control of non linear systems and linear Hybridsystems. But it dosen´t exist too many for the non linear hybridsystem.The main idea in this paper is to consider a new approach to improve the reconfiguration performance of the non linear hybrid system by using hammerstein method which is designed to works only for linear systems. This method compensated the effect of the faults and guarantees the closed-loop system stable. The proposed method is simulated with a hydraulic system of two tanks with 4 modes.</p>

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