Results 271 to 280 of about 28,700 (312)
Some of the next articles are maybe not open access.
Inputs estimator for actuator faults detection
2017 International Conference on Control, Automation and Diagnosis (ICCAD), 2017This paper proposes a fault detection method for a particular class of nonlinear flat system using a dynamic higher order sliding mode. The key idea consists to design an inputs estimator based on analytical redundancy relations by solving a constraint satisfaction problem. Indeed, the analytical redundancy relations require knowledge of the successive
O. Dhaou +3 more
openaire +1 more source
Fault-tolerant control in presence of disturbances based on fault estimation
Systems & Control Letters, 2020zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jovan Stefanovski, Ðani Juricic
openaire +1 more source
Fault estimation using algebraic observers
2007 American Control Conference, 2007A model free nonlinear observer based upon algebraic observability condition is used in the fault estimation problem of nonlinear systems. A diagnosis criterion based on the differential transcendence degree of a differential field extension is employed. Two systems with fault presence are analyzed. Faults are estimated with this observer.
Rafael Martínez-Guerra +2 more
openaire +1 more source
Comparing Fault-Proneness Estimation Models
10th IEEE International Conference on Engineering of Complex Computer Systems (ICECCS'05), 2005Over the last, years, software quality has become one of the most important requirements in the development of systems. Fault-proneness estimation could play a key role in quality control of software products. In this area, much effort has been spent in defining metrics and identifying models for system assessment.
BELLINI, PIERFRANCESCO +3 more
openaire +1 more source
Fault estimation and active fault tolerant control for servo systems
2016 IEEE International Conference on Real-time Computing and Robotics (RCAR), 2016In this paper, the problems of fault estimation and fault tolerant control for motor servo systems are investigated. The motor servo systems are modeled as continuous-time linear systems with unknown inputs and actuator faults. Based on the faulty system model, a robust fault estimation and active fault tolerant control scheme is proposed.
Fumin Guo, Xuemei Ren
openaire +1 more source
The impact of fault expansion on the interval estimate for fault detection coverage
Proceedings of IEEE 24th International Symposium on Fault- Tolerant Computing, 2002A high fault detection coverage is very critical for systems with ultra-safe requirements and fault injection is an effective technique for estimating the coverage. One difficulty of fault injection lies in the huge number of injections that need to be carried out in order to obtain statistically significant results.
Wei Wang +3 more
openaire +1 more source
On fault tolerant estimation in sensor networks
2003 European Control Conference (ECC), 2003This paper addresses the fault tolerant estimation problem. Fault tolerance is defined with respect to a given estimation objective, namely a given functional of the system state should remain observable when sensor failures occur. Three criteria, which evaluate the system fault tolerance with respect to sensor failures when a reconfiguration strategy ...
openaire +1 more source
Estimating Earthquake-Rupture Rates on a Fault or Fault System
Bulletin of the Seismological Society of America, 2011Previous approaches used to determine the rates of different earthquakes on a fault have made assumptions regarding segmentation, have been difficult to document and reproduce, and have lacked the ability to satisfy all available data constraints.
E. H. Field, M. T. Page
openaire +1 more source
Fault signal filtering for improving fault section estimation
2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077), 2002Fault diagnostic processes obtain data from circuit-breaker relay status and SCADA messages. To speed up fault diagnosis processes, a scheme of fault signal filtering (FSF) is proposed for the rapid estimation of fault regions, prior to further pinpointing of the fault. By considering circuit-breaker relay status, boundary regions are formed by joining
C.S. Chang, S.G. Kerk
openaire +1 more source
Estimation of Fault Resistance Using Fault Record Data
IEEE Transactions on Power Delivery, 2015Information about typical fault resistances of transmission lines will help improve the settings of distance relays. This paper proposes an offline method for estimating the fault resistance of transmission lines using the COMTRADE fault files available from digital distance relays. The proposed method uses the fault records at both ends of a line, but
Bing Xia +5 more
openaire +1 more source