Journal ArticleDOI
Disturbance-Observer-Based Fault Tolerant Control of High-Speed Trains: A Markovian Jump System Model Approach
Xiuming Yao,Ligang Wu,Lei Guo +2 more
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TLDR
A novel active fault tolerant composite hierarchical anti-disturbance control strategy based on the disturbance observer is proposed such that the resulting composite system is stochastically stable with position and velocity tracking performance.Abstract:
This paper addresses the fault tolerant control problem for high-speed trains in case of multiple possible failures. A new multiple point-mass model with system faults is built based on a stochastic jump system model approach. A novel active fault tolerant composite hierarchical anti-disturbance control strategy based on the disturbance observer is proposed such that the resulting composite system is stochastically stable with position and velocity tracking performance. According to whether the transition probabilities (TPs) of the failure and fault detection and isolation process can be accessed completely, three different cases (TPs are completely known, partially known, and completely unknown) are analyzed. For each case, based on the Lyapunov functional approach, a composite hierarchical controller is synthesized via a convex optimization problem. Finally, the simulations are given to illustrate the performance of the proposed methodologies.read more
Citations
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Journal ArticleDOI
Exponential H∞ Filtering for Continuous-Time Switched Neural Networks Under Persistent Dwell-Time Switching Regularity
TL;DR: The aim is to design a mode-dependent filter acquiring the state of the investigated system, and ensuring the global uniform exponential stability of the resulting filtering error system.
Journal ArticleDOI
Sliding-Mode Control for Slow-Sampling Singularly Perturbed Systems Subject to Markov Jump Parameters
TL;DR: This article addresses the investigation of sliding-mode control (SMC) for slow-sampling singularly perturbed systems (SPSs) with Markov jump parameters and the applicability of the SMC strategy is verified by a numerical example and a practical electric circuit model.
Journal ArticleDOI
Nonfragile fault‐tolerant control of suspension systems subject to input quantization and actuator fault
Journal ArticleDOI
Fault diagnosis of high-speed train suspension systems using multiscale permutation entropy and linear local tangent space alignment
TL;DR: A data-driven method, which combines multiscale permutation entropy and linear local tangent space alignment (MPE-LLTSA), is proposed to diagnose the faults of vehicle suspension systems and has the potential to be applied to the field of railway engineering.
Journal ArticleDOI
Design of a fault-tolerant output-feedback controller for thickness control in cold rolling mills
TL;DR: By constructing a desired controller based on the measured output, the stabilization and the dissipativity of the considered system are realized and the fault-tolerant output feedback controller for the hydraulic automation gauge control system of cold rolling mills is designed.
References
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Journal ArticleDOI
Paper: A survey of design methods for failure detection in dynamic systems
TL;DR: This paper surveys a number of methods for the detection of abrupt changes in stochastic dynamical systems, focusing on the class of linear systems, but the basic concepts carry over to other classes of systems.
A survey of design methods for failure detection in dynamic systems
TL;DR: A number of methods for detecting abrupt changes (such as failures) in stochastic dynamical systems are surveyed in this paper, where tradeoffs in complexity versus performance are discussed, ranging from the design of specific failure-sensitive filters, to the use of statistical tests on filter innovations, and the development of jump process formulations.
Journal ArticleDOI
Disturbance observer based control for nonlinear systems
TL;DR: This work presents a general framework for nonlinear systems subject to disturbances using disturbance observer based control (DOBC) techniques and develops a nonlinear disturbance observer for disturbances generated by an exogenous system.
Journal ArticleDOI
Fault Accommodation for Nonlinear Dynamic Systems
TL;DR: This note investigates process fault accommodation in a class of nonlinear continuous-time systems using a new fault estimation module, based on an adaptive estimator, to compensate for the effect of the faults by stabilizing the closed-loop system.
Journal ArticleDOI
Disturbance attenuation and rejection for systems with nonlinearity via DOBC approach
Lei Guo,Lei Guo,Wen-Hua Chen +2 more
TL;DR: In this article, the disturbance attenuation and rejection problem is investigated for a class of MIMO nonlinear systems in the disturbance-observer-based control (DOBC) framework.