Description: 在组合导航系统工作时，子系统可能会出现某些故障。为了保证导航精度和工作的可靠性,设计的组合导航系统应该具有一定的智能容错能力，即具有故障检测、故障隔离和系统重构功能.-In the integrated navigation system work, there may be some subsystem failures. Navigation in order to guarantee precision and reliability, design of integrated navigation system should have a certain degree of intelligent fault-tolerant capability, which has a fault detection, fault isolation and system reconfiguration functions. Platform: |
Size: 3184640 |
Author:魏蓝 |
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Description: Abstract— Fault tolerance is gaining growing interest to in-crease the reliability and a vailability of distributed energy sources.
Current sensor fault detection,isolation,and reconfiguration are presented for a voltage-oriented controlled doubly fed induction generator, which is mainly used in wind turbines. Platform: |
Size: 784384 |
Author:lakhdar |
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Description: ：在介绍过程监控主要内容及方法的基础上，归纳分析了统计过程监控的发展，详细阐述了传统
的PCA、PCR、PLS、FDA、HMM 和几种改进的PCA方法．指出，将人的经验和专家知识融人到PCA统计过程
监控，提高PCA的故障检测、隔离能力，完善故障诊断与评价能力，将是一个有价值的研究方向-: In the introduction the main content and methods of process monitoring based on the inductive analysis of the statistical process monitoring of development, elaborated on the traditional PCA, PCR, PLS, FDA, HMM, and several improved PCA method. Pointed out that the human experience and financial expertise to the PCA statistical process monitoring of people and improve the PCA fault detection, isolation, and improve fault diagnosis and evaluation capacity, will be a valuable research Platform: |
Size: 238592 |
Author:苏洋 |
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Description: In this work, Artificial Neural Networks are employed in a Fault Detection and Isolation scheme for robotic manipulators. Two networks are utilized: a Multilayer Perceptron is employed to reproduce the manipulator dynamical behavior, generating a residual vector that is classified by a Radial Basis Function Network, giving the fault isolation. Two methods are utilized to choose
the radial unit centers in this network. The first method,
Forward Selection, employs Subset Selection to choose
the radial units from the training patterns. The second employs the Kohonen’s Self-Organizing Map to fix the radial unit centers in more interesting positions.
Simulations employing a two link manipulator and the Puma 560 manipulator indicate that the second method gives a smaller generalization error. Platform: |
Size: 149504 |
Author:fad |
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Description: 故障检测和隔离.一个个故障检测估计器和一组故障隔离估计器.-A FDI method is developed for wind turbines based on a benchmark system model.
A fault detection estimator is used for fault detection, and a bank of fault isolation estimators are employed to determine the particular fault type/location.
Each isolation estimator is designed based on a particular fault scenario under consideration. Platform: |
Size: 1280000 |
Author:伍子胥 |
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Description: This paper review the effectiveness of the parity space approach
to identify faults or disturbance in a system. The most commonly
used is the observer based procedures, and redundancy relationship
method. This involves analytical mathematical analysis of
geometry and bilinear algebra. Then, technological advances which
require complex computation such as artificial intelligence and
genetic algorithm had made tremendous improvement to fault
Detection and Isolation (FDI) analysis. Dynamic Parity Space
Approach was studied for a discrete state-space model. Important
data will be extracted using this approach especially for residual
generation which is the backbones of FDI analysis. Subsequently,
at each time instant k, the generated residuals will form a matrix
that will define the fault signature. It is remarkable that this
approach is proven in this study to be effective in diagnosis and
faults isolation. Platform: |
Size: 2606080 |
Author:Hazrul |
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Description: This paper presents the generic model of intelligent
instruments and specifies it for intelligent sensors, from a functional
point of view, i.e., from the point of view of the services they
offer to the system designer. Basic services are concerned with data
estimation and data characterization, both based on local transducers
and on the availability of remote signals. Advanced services
are concerned with data validation, through fault detection and isolation procedures, and with fault tolerance, by means of accommodation
and reconfiguration strategies. Finally, the integration of intelligent sensors in distributed control systems is discussed. Platform: |
Size: 216064 |
Author:said |
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Description: 自适应的动态信息分配方法,联邦滤波的信息分配原则直接影响滤波器的容错性和精度.考虑到故障隔离后的子系统不能参与联邦滤波器的信息分配,首先联邦滤波器的故障检测方法 然后通过引入故障因子,将系统的信息分配和故障状态综合考虑.-The adaptive dynamic information distribution method, the federal filtering the information distribution principles directly affect the fault tolerance and precision of the filter taking into account the subsystem fault isolation can not participate in the allocation of federal filter, the first federal filter fault detection method then through the introduction of a failure factor, considering the information distribution system and the fault status. Platform: |
Size: 3493888 |
Author:zkj |
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Description: The emergence of stronger safety and environmental
norms, the need for early decision mechanisms, together
with the widespread di usion of sensors of all kinds, result
in an increased need for research investigations in the eld
of fault detection and isolation (FDI). In particular, e-
cient and robust methods for fault and damage detection,
diagnostics and localization, are necessary for condition-
based maintenance and for fatigue and aging prevention.
Many approaches to FDI problems assume that a model of
the monitored system is available. This is a reasonable as-
sumption since many machines and processes rely on phys-
ical principles and models can be built on that basis (Ljung
(1999)). However, it is often argued that a major drawback
of model-based FDI methods lies in the requirement of a
precise model of the system to be monitored. In particular,
changes in the functioning modes and un Platform: |
Size: 174080 |
Author:hassan |
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Description: Code of An Estimation-based Approach of Fault Detection and Isolation of the Wind TurbineBenchmark-Code of An Estimation-based Approach of Fault Detection and Isolation of the Wind TurbineBenchmark
Platform: |
Size: 1282048 |
Author:maryam |
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Description: Robust fault diagnosis of proton exchange membrane fuel cells using a Takagi-Sugeno interval observer approach(In this paper, the problem of robust fault diagnosis of proton exchange membrane (PEM)
fuel cells is addressed by introducing the Takagi-Sugeno (TS) interval observers that
consider uncertainty in a bounded context, adapting TS observers to the so-called interval
approach. Design conditions for the TS interval observer based on regional pole
placement are also introduced to guarantee the fault detection and isolation (FDI)
performance. The fault detection test is based on checking the consistency between the
measurements and the output estimations provided by the TS observers. In presence of
bounded uncertainty, this check relies on determining if all the measurements lie inside
their corresponding estimated interval bounds. When a fault is detected, the
measurements that are inconsistent with their corresponding estimations are annotated
and a fault isolation procedure is triggered.) Platform: |
Size: 849920 |
Author:xifengni |
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Description: A collection of MATLAB m-files and simulink models for the design of UIO based FDI system. Platform: |
Size: 19036 |
Author:Aminos2021 |
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