Results 21 to 30 of about 28,700 (312)

Process fault prognosis using a fuzzy-adaptive unscented Kalman predictor [PDF]

open access: yes, 2011
By monitoring the future process status via information prediction, process fault prognosis is able to give an early alarm and therefore prevent faults, when the faults are still in their early stages.
Sheng Chen   +5 more
core   +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

Direct identification of fault estimation filter for sensor faults

open access: yesCoRR, 2015
Extended version of the paper accepted by IFAC ...
Yiming Wan   +2 more
openaire   +2 more sources

Iterative Learning Scheme Based Sensor Fault Estimation for Nonlinear Repetitive System

open access: yesIEEE Access, 2019
Iterative learning scheme is proposed with the aim to achieve perfect tracking of a prescribed reference trajectory for systems that operate repetitively.
Li Feng   +3 more
doaj   +1 more source

Model predictive estimation of evolving faults [PDF]

open access: yes2006 American Control Conference, 2006
In this work we present an optimization based statistical estimation approach for diagnostics in large scale systems. The fault estimation scheme relies on prediction residuals generated by detailed prediction models of the system under consideration. The system dynamics are generally nonlinear.
Sikandar Samar, Dimitry Gorinevsky
openaire   +1 more source

An estimation method for sensor faults based on observer in interconnected systems.

open access: yesPLoS ONE
In this research, a class of nonlinear interconnected systems with sensor faults were investigated and an estimation method was proposed for system sensor faults based on the theory of system state reconstruction.
Yanxiu Sun, Hong Li
doaj   +1 more source

Optimal Fault Tolerant Control of Large-Scale Wind Turbines in the Case of the Pitch Actuator Partial Faults

open access: yesComplexity, 2020
In this paper, an adaptive fault tolerant control strategy is proposed to deal with the three pitch actuator faults in the large-scale wind turbines. Firstly, a simultaneous state and fault estimation was performed through a suitable LMI (linear matrix ...
Younes Ait El Maati, Lhoussain El Bahir
doaj   +1 more source

Fault Impact Estimation for Lightweight Fault Detection in Image Filtering

open access: yesIEEE Transactions on Computers, 2022
Classical redundancy-based fault detection techniques, such as Duplication with Comparison (DWC), rely on replicating thecomputation and comparing the replicas' output at a bit-wise granularity. In many application environments these costs are prohibitive,especially when applications are characterized by an intrinsic level of tolerance.
Bolchini C.   +4 more
openaire   +2 more sources

Least order fault and model detection using multi-models [PDF]

open access: yes, 2009
Multi-model based fault detection is often a viable alternative to various multi-model based state estimation techniques using banks of Kalman filters.
A. Varga, Varga, Andreas
core   +1 more source

Fault Detection in High Redundancy Actuation Using an Interacting Multiple-Model Approach [PDF]

open access: yes, 2009
The High Redundancy Actuation (HRA) project investigates the use of a relatively high number of small actuation elements, assembled in series and parallel in order to form a single actuator which has intrinsic fault tolerance.
Thomas Steffen (1252947)   +20 more
core   +1 more source

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