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>

scholarly journals DNN identification and fault-tolerant control for non-linear systems with unknown faults

2019 ◽  
Vol 2019 (22) ◽  
pp. 8395-8399 ◽  
Author(s):  
Xiaoli Zhang ◽  
Xiang Gu ◽  
Hong Shen ◽  
Yang Yi
Keyword(s):  
Linear Systems ◽  
Fault Tolerant ◽  
Fault Tolerant Control ◽  
Non Linear ◽  
Non Linear Systems

scholarly journals Robust Multiple Sensor Fault–Tolerant Control For Dynamic Non–Linear Systems: Application To The Aerodynamical Twin–Rotor System

2018 ◽  
Vol 28 (2) ◽  
pp. 297-308 ◽  
Author(s):  
Marcin Pazera ◽  
Mariusz Buciakowski ◽  
Marcin Witczak
Keyword(s):  
Linear Systems ◽  
Fault Tolerant ◽  
Estimation Error ◽  
Fault Tolerant Control ◽  
Rotor System ◽  
Fault Estimation ◽  
Sensor Fault ◽  
Non Linear ◽  
Non Linear Systems ◽  
Twin Rotor

Abstract The paper deals with the problem of designing sensor-fault tolerant control for a class of non-linear systems. The scheme is composed of a robust state and fault estimator as well as a controller. The estimator aims at recovering the real system state irrespective of sensor faults. Subsequently, the fault-free state is used for control purposes. Also, the robust sensor fault estimator is developed in a such a way that a level of disturbances attenuation can be reached pertaining to the fault estimation error. Fault-tolerant control is designed using similar criteria. Moreover, a separation principle is proposed, which makes it possible to design the fault estimator and control separately. The final part of the paper is devoted to the comprehensive experimental study related to the application of the proposed approach to a non-linear twin-rotor system, which clearly exhibits the performance of the new strategy.

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