Results 11 to 20 of about 248,739 (301)

NONLINEAR SYSTEM SENSOR FAULT ESTIMATION

open access: yesIFAC Proceedings Volumes, 2005
Based on the techniques of high gain observer and adaptive estimation,an algorithm is proposed in this paper for sensor fault estimationin nonlinear systems. It is essentially assumed that a high gainobserver exists for the fault-free system. A high gainadaptive observer is then designed for sensor fault estimation.The convergence of the algorithm is ...
Zhang, Qinghua, Besancon, Gildas
openaire   +2 more sources

Active fault tolerant control for nonlinear systems with simultaneous actuator and sensor faults [PDF]

open access: yes, 2013
The goal of this paper is to describe a novel fault tolerant tracking control (FTTC) strategy based on robust fault estimation and compensation of simultaneous actuator and sensor faults. Within the framework of fault tolerant control (FTC) the challenge
Patton, Ron J., Sami, Montadher
core   +1 more source

A new fault tolerant control scheme for non‐linear systems by T‐S fuzzy model approach

open access: yesIET Control Theory & Applications, 2021
This paper is concerned with the problem of fault tolerant control for non‐linear systems with sensor faults based on the T‐S fuzzy model approach. First, a fault estimation (FE) observer with L∞ technique is designed to estimate the fault.
Yue Wu   +3 more
doaj   +1 more source

Robust Fault Detection of Switched Linear Systems with State Delays [PDF]

open access: yes, 2009
This correspondence deals with the problem of robust fault detection for discrete-time switched systems with state delays under an arbitrary switching signal.
Shi, Peng, Wang, Dong, Wang, Wei
core   +1 more source

Sensor-fault tolerance using robust MPC with set-based state estimation and active fault isolation [PDF]

open access: yes, 2014
In this paper, a sensor fault-tolerant control (FTC) scheme using robust model predictive control (MPC) and set theoretic fault detection and isolation (FDI) is proposed.
Niculescu, Silviu-Iulian   +4 more
core   +3 more sources

Adaptive Prescribed Performance Fault Estimation and Accommodation for a Class of Stochastic Nonlinear Systems

open access: yesIEEE Access, 2019
This paper studies the problem of adaptive fault estimation and accommodation for a class of stochastic nonlinear systems with unknown time-varying faults.
Qing Li   +4 more
doaj   +1 more source

A Method to Simultaneously Detect the Current Sensor Fault and Estimate the State of Energy for Batteries in Electric Vehicles

open access: yesSensors, 2016
Recently, State of energy (SOE) has become one of the most fundamental parameters for battery management systems in electric vehicles. However, current information is critical in SOE estimation and current sensor is usually utilized to obtain the latest ...
Jun Xu   +3 more
doaj   +1 more source

Ground reaction force sensor fault detection and recovery method based on virtual force sensor for walking biped robots [PDF]

open access: yes, 2013
This paper presents a novel method for ground force sensor faults detection and faulty signal reconstruction using Virtual force Sensor (VFS) for slow walking bipeds. The design structure of the VFS consists of two steps, the total ground reaction force (
Erbatur, Kemalettin, Hashlamon, Iyad
core   +1 more source

Fault estimation—a standard problem approach [PDF]

open access: yesInternational Journal of Robust and Nonlinear Control, 2002
AbstractThis paper presents a range of optimization based approaches to fault diagnosis. A variety of fault diagnosis problems are reformulated in the so‐called standard problem set‐up introduced in the literature on robust control. Once the standard problem formulations are given, the fault diagnosis problems can be solved by standard optimization ...
Stoustrup, Jakob, Niemann, H.
openaire   +1 more source

Fault area estimation using traveling wave for wide area protection

open access: yesJournal of Modern Power Systems and Clean Energy, 2016
As the increasing number of Phasor Measurement Units (PMUs) are deployed, wide area protection in power systems has been gaining interest. In particular, fault detection, fault classification and fault area estimation are essential to reduce the damage ...
Jae-Won Lee   +4 more
doaj   +1 more source

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