期刊文献+
共找到11篇文章
< 1 >
每页显示 20 50 100
Robust fault detection for delta operator switched fuzzy systems with bilateral packet losses
1
作者 FAN Yamin ZHANG Duanjin 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2023年第1期214-223,共10页
Considering packet losses, time-varying delay, and parameter uncertainty in the switched fuzzy system, this paper designs a robust fault detection filter at any switching rate and analyzes the H∞ performance of the s... Considering packet losses, time-varying delay, and parameter uncertainty in the switched fuzzy system, this paper designs a robust fault detection filter at any switching rate and analyzes the H∞ performance of the system. Firstly, the Takagi-Sugeno(T-S) fuzzy model is used to establish a global fuzzy model for the uncertain nonlinear time-delay switched system,and the packet loss process is modeled as a mathematical model satisfying Bernoulli distribution. Secondly, through the average dwell time method and multiple Lyapunov functions, the exponentially stable condition of the nonlinear network switched system is given. Finally, specific parameters of the robust fault detection filter can be obtained by solving linear matrix inequalities(LMIs). The effectiveness of the method is verified by simulation results. 展开更多
关键词 switched fuzzy system robust fault detection timevarying delay bilateral packet losses UNCERTAINTY average dwell time method
下载PDF
Robust fault detection for a class of nonlinear network control system with communication delay 被引量:5
2
作者 Ai Qiangyu Liu Chunsheng Jiang Bin 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2009年第5期1024-1030,共7页
To investigate a class of nonlinear network control system, a robust fault diagnosis method is presented based on the robust state observer. To access the objective that the designed robust filter is maximally toleran... To investigate a class of nonlinear network control system, a robust fault diagnosis method is presented based on the robust state observer. To access the objective that the designed robust filter is maximally tolerant to disturbances and sensitive to fault, the robustness and stability properties of the fault diagnosis scheme are established rigorously. Using the residual vector, a fault tolerant controller is established in order to guarantee the stability of the closed-loop system, and the controller law can be obtained by solving a set of linear matrix inequalities. Then, some relevant sufficient conditions for the existence of a solution are given by applying Lyapunov stability theory. Finally, a simulation example is performed to show the effectiveness of the proposed approach. 展开更多
关键词 nonlinear network control systems robust fault detection OBSERVER linear matrix inequality.
下载PDF
Design of H_∞ robust fault detection filter for nonlinear time-delay systems 被引量:4
3
作者 BAI Lei-shi HE Li-ming +1 位作者 TIAN Zuo-hua SHI Song-jiao 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2006年第10期1733-1741,共9页
In this paper, the robust fault detection filter (RFDF) design problems are studied for nonlinear time-delay systems with unknown inputs. First, a reference residual model is introduced to formulate the RFDF design pr... In this paper, the robust fault detection filter (RFDF) design problems are studied for nonlinear time-delay systems with unknown inputs. First, a reference residual model is introduced to formulate the RFDF design problem as an H∞ model-matching problem. Then appropriate input/output selection matrices are introduced to extend a performance index to the time-delay systems in time domain. The reference residual model designed according to the performance index is an optimal residual generator, which takes into account the robustness against disturbances and sensitivity to faults simultaneously. Applying robust H∞ optimization control technique, the existence conditions of the RFDF for nonlinear time-delay systems with unknown inputs are presented in terms of linear matrix inequality (LMI) formulation, independently of time delay. An illustrative design example is used to demonstrate the validity and applicability of the proposed approach. 展开更多
关键词 Nonlinear time-delay systems robust fault detection filter iRFDF H∞ optimization Linear matrix inequality (LMI)
下载PDF
Robust fault detection and diagnosis for uncertain nonlinear systems
4
作者 Wang Wei Tahir Hameed +1 位作者 Ren Zhang Zhou Kemin 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2009年第5期1031-1036,共6页
This paper considers robust fault detection and diagnosis for input uncertain nonlinear systems. It proposes a multi-objective fault detection criterion so that the fault residual is sensitive to the fault but insensi... This paper considers robust fault detection and diagnosis for input uncertain nonlinear systems. It proposes a multi-objective fault detection criterion so that the fault residual is sensitive to the fault but insensitive to the uncertainty as much as possible. Then the paper solves the proposed criterion by maximizing the smallest singular value of the transformation from faults to fault detection residuals while minimizing the largest singular value of the transformation from input uncertainty to the fault detection residuals. This method is applied to an aircraft which has a fault in the left elevator or rudder. The simulation results show the proposed method can detect the control surface failures rapidly and efficiently. 展开更多
关键词 nonlinear system robust fault detection and diagnosis singular value flight control system.
下载PDF
Robust fault detection in linear systemsbased on full-order state observers
5
作者 Aiguo WU Guangren DUAN 《控制理论与应用(英文版)》 EI 2007年第4期325-330,共6页
A parametric approach to robust fault detection in linear systems with unknown disturbances is presented. The residual is generated using full-order state observers (FSO). Based on an analytical solution to a type o... A parametric approach to robust fault detection in linear systems with unknown disturbances is presented. The residual is generated using full-order state observers (FSO). Based on an analytical solution to a type of Sylvester matrix equations, the parameterization of the observer gain matrix is given. In terms of the design degrees of freedom provided by the parametric observer design and a group of introduced parameter vectors, a sufficient and necessary condition for fullorder state observer design with disturbance decoupling is then established. By properly constraining the design parameters according to this proposed condition, the effect of the disturbance on the residual signal is also decoupled, and a simple algorithm is developed. The presented approach offers all the degrees of design freedom. Finally, a numerical example illustrates the effect of the proposed approach. 展开更多
关键词 robust fault detection Full-order state observers Linear systems Parametric approach
下载PDF
Hybrid robust fault detection and isolation of satellite reaction wheel actuators
6
作者 H.Abbasi Nozari S.J.Sadati Rostami +1 位作者 Paolo Castaldi Silvio Simani 《Journal of Control and Decision》 EI 2024年第1期117-131,共15页
In this paper,a combined robust fault detection and isolation scheme is studied for satellite system subject to actuator faults,external disturbances,and parametric uncertainties.The proposed methodology incorporates ... In this paper,a combined robust fault detection and isolation scheme is studied for satellite system subject to actuator faults,external disturbances,and parametric uncertainties.The proposed methodology incorporates a residual generation module,including a bank of filters,into an intelligent residual evaluation module.First,residual filters are designed based on an improved nonlinear differential algebraic approach so that they are not affected by external disturbances.The residual evaluation module is developed based on the suggested series and parallel forms.Further,a new ensemble classification scheme defined as blended learning integrates heterogeneous classifiers to enhance the performance.A wide range of simulations is carried out in a high-fidelity satellite simulator subject to the constant and time-varying actuator faults in the presence of disturbances,manoeuvres,uncertainties,and noises.The obtained results demonstrate the effectiveness of the proposed robust fault detection and isolation method compared to the traditional nonlinear differential algebraic approach. 展开更多
关键词 robust fault detection and isolation reaction wheels blended learning series and parallel fault detection and isolation forms satellite attitude control system
原文传递
A Novel Approach to Design Robust Fault Detection Filter for Networked Control Systems
7
作者 马力伟 田作华 施颂椒 《Journal of Shanghai Jiaotong university(Science)》 EI 2009年第3期310-315,共6页
In this paper, an approach for designing robust fault detection filter (RFDF) of networked control systems (NCSs) with unknown inputs is studied. The design aims at implementing the optimal trade-off between robustnes... In this paper, an approach for designing robust fault detection filter (RFDF) of networked control systems (NCSs) with unknown inputs is studied. The design aims at implementing the optimal trade-off between robustness of unknown inputs (including the item produced by networked-induced delay) and sensitivity of fault. The key design issue is to introduce an optimal fault detection filter based on NCSs with the control law compensation as the reference residual model of NCSs and to formulate the RFDF design as a model-matching problem. By applying H∞ optimization technique, linear matrix inequality (LMI) approach is given to solve the model-matching problem. The validity of the proposed approach is shown by a numerical example. 展开更多
关键词 networked control systems (NCSs) robust fault detection filter (RFDF) model-matching H∞ optimization linear matrix inequality (LMI)
原文传递
Robust fault detection filter design for a class of time-delay systems via equivalent transformation
8
作者 Jilie ZHANG Huaguang ZHANG +1 位作者 Feisheng YANG Shenquan WANG 《控制理论与应用(英文版)》 EI CSCD 2013年第1期54-60,共7页
This paper is concerned with the robust fault detection filter (RFDF) design for a class of linear time- invariant systems (LTISs) with output state time delays. Although existing results in literatures study the ... This paper is concerned with the robust fault detection filter (RFDF) design for a class of linear time- invariant systems (LTISs) with output state time delays. Although existing results in literatures study the RFDF for time- delay systems, few is concerned with the output state time-delay systems. The basic idea of our study is to eliminate the time delays of system and transform it to a delay-free system (i.e., a linear time-invariant system without time delays) by the bicausal change of coordinates approach. Then, we design the RFDF for the delay-free LTIS, which is equivalent to the original system with time delays. We first introduce a class of systems with output state time delays, whose fault can be detected by using the RFDF design approach for delay-free systems. Then, since the RFDF design problem can be formulated as a standard H-infinity-model matching problem, it is solved by using H-infinity-optimization LMI techniques. In the last, the adaptive threshold of fault detection is chosen and an illustrative design example is used to demonstrate the validity of the design approach. 展开更多
关键词 Equivalent transformation robust fault detection filter Output state time-delay system
下载PDF
H_-/H_∞ fault detection filter design for interval time-varying delays switched systems 被引量:2
9
作者 Jiawei Wang Yi Shen Zhenhua Wang 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2016年第4期878-886,共9页
The problem of the robust fault detection filter design for time-varying delays switched systems is considered in the framework of mixed H-/H∞. Firstly, the weighted H∞ performance index is utilized as the robustnes... The problem of the robust fault detection filter design for time-varying delays switched systems is considered in the framework of mixed H-/H∞. Firstly, the weighted H∞ performance index is utilized as the robustness performance, and the H- index is used as the sensitivity performance for obtaining the robust fault detection filter. Then a novel multiple Lyapunov-Krasovskii function is proposed for deriving sufficient existence conditions of the robust fault detection filter based on the average dwell time technique. By introducing slack matrix variable, the coupling between the Lyapunov matrix and system matrix is removed, and the conservatism of results is reduced. Based on the robust fault detection filter, residual is generated and evaluated for detecting faults. In addition, the results of this paper are dependent on time delays,and represented in the form of linear matrix inequalities. Finally,the simulation example verifies the effectiveness of the proposed method. 展开更多
关键词 switched system average dwell time mixed H-/H∞ robust fault detection filter time-varying delay
下载PDF
GNSS receiver autonomous integrity monitoring(RAIM)algorithm based on robust estimation 被引量:19
10
作者 Yuanxi Yang Junyi Xu 《Geodesy and Geodynamics》 2016年第2期117-123,共7页
Integrity is significant for safety-of-life applications. Receiver autonomous integrity monitoring(RAIM) has been developed to provide integrity service for civil aviation. At first,the conventional RAIM algorithm i... Integrity is significant for safety-of-life applications. Receiver autonomous integrity monitoring(RAIM) has been developed to provide integrity service for civil aviation. At first,the conventional RAIM algorithm is only suitable for single fault detection, single GNSS constellation. However, multiple satellite failure should be considered when more than one satellite navigation system are adopted. To detect and exclude multi-fault, most current algorithms perform an iteration procedure considering all possible fault model which lead to heavy computation burden. An alternative RAIM is presented in this paper based on multiple satellite constellations(for example, GPS and Bei Dou(BDS) etc.) and robust estimation for multi-fault detection and exclusion, which can not only detect multi-failures,but also control the influences of near failure observation. Besides, the RAIM algorithm based on robust estimation is more efficient than the current RAIM algorithm for multiple constellation and multiple faults. Finally, the algorithm is tested by GPS/Bei Dou data. 展开更多
关键词 GNSS Integrity Receiver autonomous integrity monitoring(RAIM) robust estimation fault detection
原文传递
Robust fault diagnosis for non-Gaussian stochastic systems based on the rational square-root approximation model 被引量:3
11
作者 YAO LiNa1 & WANG Hong2,3 1 School of Electrical Engineering,Zhengzhou University,Zhengzhou 450001,China 2 Control Systems Centre,University of Manchester,Manchester M60 1QD,UK 3 Institute of Automation,Chinese Academy of Sciences,Beijing 100080,China 《Science in China(Series F)》 2008年第9期1281-1290,共10页
The task of robust fault detection and diagnosis of stochastic distribution control (SDC) systems with uncertainties is to use the measured input and the system output PDFs to still obtain possible faults informatio... The task of robust fault detection and diagnosis of stochastic distribution control (SDC) systems with uncertainties is to use the measured input and the system output PDFs to still obtain possible faults information of the system. Using the rational square-root B-spline model to represent the dynamics between the output PDF and the input, in this paper, a robust nonlinear adaptive observer-based fault diagnosis algorithm is presented to diagnose the fault in the dynamic part of such systems with model uncertainties. When certain conditions are satisfied, the weight vector of the rational square-root B-spline model proves to be bounded. Conver- gency analysis is performed for the error dynamic system raised from robust fault detection and fault diagnosis phase. Computer simulations are given to demon- strate the effectiveness of the proposed algorithm. 展开更多
关键词 SDC systems output probability density functions(PDFs) robust fault detection and diagnosis rational square-root B-spline functions
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部