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A Theory for Observational Fault Tolerance [chapter]

Adrian Francalanza, Matthew Hennessy
2006 Lecture Notes in Computer Science  
We develop a theory for fault tolerance for a distributed pi-calculus, whereby locations act as units of failure and redundancy is distributed across independently failing locations.  ...  We then develop bisimulation proof techniques to verify fault tolerance properties of distributed programs and show they are sound with respect to our definitions for fault tolerance.  ...  Hence, in this section we reformulate our fault tolerance definition for dynamic fault tolerance (the most demanding) to reflect such a merging of relations; a similar definition for the static case should  ... 
doi:10.1007/11690634_2 fatcat:556ylyd6vfhvtd32riuc5cijvy

A theory for observational fault tolerance

Adrian Francalanza, Matthew Hennessy
2007 The Journal of Logic and Algebraic Programming  
We develop a theory for fault tolerance for a distributed pi-calculus, whereby locations act as units of failure and redundancy is distributed across independently failing locations.  ...  We then develop bisimulation proof techniques to verify fault tolerance properties of distributed programs and show they are sound with respect to our definitions for fault tolerance.  ...  Hence, in this section we reformulate our fault tolerance definition for dynamic fault tolerance (the most demanding) to reflect such a merging of relations; a similar definition for the static case should  ... 
doi:10.1016/j.jlap.2007.03.003 fatcat:osxz5nt6vrd33abptuuqmswcgy

Observer-based fault-tolerant control for a class of switched nonlinear systems

H. Yang, B. Jiang, M. Staroswiecki
2007 IET Control Theory & Applications  
An observer-based fault tolerant control (FTC) method is proposed for constrained switched systems (CSS) with input constraints.  ...  A family of Lyapunov-based bounded controllers are designed to ensure that, whenever actuator faults occur at the dwell time period of each continuous mode, the mode is always within its corresponding  ...  Fault detection and diagnosis (FDD) and fault tolerant control (FTC) procedures are designed to guarantee that the system goal is still achieved in spite of the faults [3] [4] [5] .  ... 
doi:10.1049/iet-cta:20060406 fatcat:tnjhijp6ovf77nxjmxuy2k4zbi

Smart Fault-Tolerant Control System Based on Chaos Theory and Extension Theory for Locating Faults in a Three-Level T-Type Inverter

Kuei-Hsiang Chao, Long-Yi Chang, Fu-Qiang Xu
2019 Applied Sciences  
This study proposes a smart fault-tolerant control system based on the theory of Lorenz chaotic system and extension theory for locating faults and executing tolerant control in a three-level T-type inverter  ...  of the proposed fault diagnosis system and fault-tolerant control system for a three-level T-type Inverter.  ...  Conclusions This study proposes a fault-tolerant diagnosis system based on chaos theory and extension theory for locating a faulty power transistor in a three-level T-type inverter.  ... 
doi:10.3390/app9153071 fatcat:vugm6coy5jhurbisitqegw2dgy

Robust static output-feedback controller design against sensor failure for vehicle dynamics

Sabrina Aouaouda, Hamid-Reza Karimi, Mohammed Chadli
2014 IET Control Theory & Applications  
This study deals with the design of a robust fault estimation and fault-tolerant control for vehicle lateral dynamics subject to external disturbance and unknown sensor faults.  ...  Firstly, a descriptor state and fault observer is designed to achieve the system state and sensor fault estimates simultaneously.  ...  Over the past decades, fault diagnosis and fault-tolerant control strategies (FTC) have been proposed especially for sensor and/or actuator faults for vehicle lateral dynamics [2] [3] [4] .  ... 
doi:10.1049/iet-cta.2013.0709 fatcat:j7ljg6ag6jc3jorlwrklcnvt6a

Fault Diagnosis and Fault Tolerant Control for Non-Gaussian Singular Time-Delayed Stochastic Distribution Systems

Lina Yao, Long Feng, Bin Jiang
2014 Mathematical Problems in Engineering  
New integrated fault diagnosis (FD) and fault tolerant control (FTC) algorithm for non-Gaussian singular time-delayed stochastic distribution control (SDC) system is proposed in the paper.  ...  Combined with the switching control theory, based on the estimated fault information, the fault tolerant controller can be designed to make the postfault probability density function (PDF) still track  ...  State Key Laboratory of Synthetical Automation for Process Industries.  ... 
doi:10.1155/2014/937583 fatcat:de7eavw4vvgojicrfvxltkgt5i

Fault Detection, Isolation, Estimation, and Accommodation of Dynamic Systems

Ke Zhang, Peng Shi, Vincent Cocquempot, Bin Jiang
2015 Mathematical Problems in Engineering  
Hence, it is important to develop novel theories and methods to investigate fault diagnosis and fault tolerant control or related topics.  ...  In a paper entitled "Fault Tolerant Control for Uncertain Time-Delay Systems with a Trajectory Tracking Approach, " S.  ...  Acknowledgments We would like to thank the authors for their excellent contributions and patience in assisting us.  ... 
doi:10.1155/2015/798563 fatcat:rxobhmbhcfcydhqc44nnhb7mfm

Analytical fault tolerant navigation system for an aerospace launch vehicle using sliding mode observer

Mahdi Hasani, Jafar Roshanian, A. Majid Khoshnooda
2017 Advances in aircraft and spacecraft science  
For this purpose, fault recovery system is constructed to detect and reconfigure normal navigation faults based on the sliding mode observer (SMO) theory.  ...  fault tolerant navigation solution.  ...  In the second part, the sliding mode theory is applied for a fault tolerance unit of ALV.  ... 
doi:10.12989/aas.2017.4.1.053 fatcat:cmgzrywdprasjpevjyyylw6zxa

Fault Diagnosis and Tolerant Control of Three-Level Neutral-Point Clamped Inverters in Motor Drives

Kuei-Hsiang Chao, Chen-Hou Ke
2020 Energies  
This paper presents an extension theory-based assessment method to perform fault diagnosis for inverters in motor driving systems.  ...  Then, the relationships between fault types and specific spectra are established as characteristics for the extension assessment method, which is then used to create a smart fault diagnosis system for  ...  The procedure for using the extension theory-based fault diagnosis method for a three-level NPC-type inverter is explained in Section 4.  ... 
doi:10.3390/en13236302 fatcat:g7cndyk2hvdllk4l6zkrcncpiy

IEEE Access Special Section: Recent Advances in Fault Diagnosis and Fault-Tolerant Control of Aerospace Engineering Systems

Bing Xiao, Hamid Reza Karimi, Xiang Yu, Qingbin Gao
2020 IEEE Access  
In the article, ''Nonlinear fault-tolerant control for hypersonic flight vehicle with multi-sensor faults,'' by Chen et al. the problems of fault tolerant control and fault diagnosis were studied for hypersonic  ...  The fault in an altitude system was estimated by synthesizing a backstepping sliding-mode observer with a good estimation performance.  ... 
doi:10.1109/access.2020.2980433 fatcat:56l3dugshvb6xfelfp7tffdbx4

Study on Chaotic Fault Tolerant Synchronization Control Based on Adaptive Observer

Dongming Chen, Xinyu Huang, Tao Ren
2014 The Scientific World Journal  
Aiming at the abrupt faults of the chaotic system, an adaptive observer is proposed to trace the states of the master system.  ...  The sufficient conditions for synchronization of such chaotic systems are also derived.  ...  Section 3 proposes a fault tolerant synchronization control scheme based on adaptive observer. Section 4 demonstrates numerical simulations and applications for secure communications.  ... 
doi:10.1155/2014/405396 pmid:24959615 pmcid:PMC4052502 fatcat:7k2czdkvyjg6hejibcshbhjyau

Fault Detection, Estimation/Reconstruction, and Fault-Tolerant Control: Theory and Practice

Wen Chen, Afef Fekih, Zehui Mao
2016 Mathematical Problems in Engineering  
As a response to high requirement for system safety, reliability, and survivability, fault diagnosis and fault-tolerant control (FTC) for dynamic systems have been attractive subjects of many investigations  ...  Fault-Tolerant Control Safety Assessment L. Meng et al. pursued a safety assessment for electrical motor based on an SOM neural network.  ... 
doi:10.1155/2016/5293171 fatcat:qxu3shytejdeladioesbh4fhkm

Active fault tolerance control of a wind turbine system using an unknown input observer with an actuator fault

Shanzhi Li, Haoping Wang, Abdel Aitouche, Yang Tian, Nicolai Christov
2018 International Journal of Applied Mathematics and Computer Science  
This paper proposes a fault tolerant control scheme based on an unknown input observer for a wind turbine system subject to an actuator fault and disturbance.  ...  The convergence of the unknown input observer is also analysed with Lyapunov theory. Secondly, using fault estimation, an active fault tolerant controller is applied to a wind turbine system.  ...  In addition, using fuzzy logic theory, a fault tolerant control based on data-drive for wind turbine benchmark is presented by Simani and Castaldi (2012) .  ... 
doi:10.2478/amcs-2018-0005 fatcat:ir3ixdf34vdc3mt3p4rfhdjc6i

Discrete optimal actuator-fault-tolerant control for vehicle active suspension

Cheng-Hui Zhang, Shi-Yuan Han, Yue-Hui Chen, Xiao-Fang Zhong
2017 Journal of Vibroengineering  
This paper studies the discrete actuator-fault-tolerant control problem for a vehicle active suspension system under persistent road disturbances.  ...  By designed a fault diagnoser, the optimal actuator-fault-tolerant controller is derived from the discrete Riccati equation and Stein equations, respectively.  ...  Our aim is to design a discrete fault observer to diagnose the actuator faults of vehicle active suspension, thereby to design a discrete optimal actuator-fault-tolerant control law * ( ) for system Eq  ... 
doi:10.21595/jve.2016.17256 fatcat:yit3hrtjdbfmrduuompjtbpbv4

Applying feedback control in adaptive replication mechanisms in fault tolerant multi-agent organizations

Sebnem Bora, Oguz Dikenelli
2006 Proceedings of the 2006 international workshop on Software engineering for large-scale multi-agent systems - SELMAS '06  
Thus, our approach provides a systematic and scientific method for implementing adaptive fault tolerance policies in MAS.  ...  This approach uses an observation mechanism and a feedback control system within an adaptive replication infrastructure to support adaptive fault tolerance in multi-agent organizations.  ...  Bondavalli et al. propose a framework for adaptive fault tolerance in a real-time context [8] .  ... 
doi:10.1145/1138063.1138066 fatcat:to36dwtxo5ghhnhzu7t363h6fi
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