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A fault detection and isolation system for cooperative manipulators
(Sociedade Brasileira de Automática, 2008)
The problem of fault detection and isolation (FDI) in cooperative manipulators is addressed in this paper. Four FDI procedures are developed to deal with free-swinging joint faults, locked joint faults, incorrectly measured ...
Comparative study of inversion-based and observer-based approaches for fault diagnosis in DC-DC converters
(2017-07-07)
Recently, model-based approaches have been proposed for fault diagnosis as an emerging alternative to traditional techniques. Particularly, the inversion-and observer-based were proposed for fault diagnosis as successful ...
Fault detection and isolation using concatenated wavelet transform variances and discriminant analysis
(2006)
A method for fault detection and isolation is developed using the concatenated variances of the continuous wavelet transform (CWT) of plant outputs. These concatenated variances are projected onto the principal component ...
Fault detection and isolation using concatenated wavelet transform variances and discriminant analysis
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2006)
A method for fault detection and isolation is developed using the concatenated variances of the continuous wavelet transform (CWT) of plant outputs. These concatenated variances are projected onto the principal component ...
Time-frequency analysis combining wavelets and the envelope technique for fault identification in rotary machines
(2013-03-18)
Nowadays the method based on demodulation by envelope finds wide application in industry as a technique for evaluation of bearings and other components in rotating machinery. In recent years the application of Wavelets for ...
Detection and isolation of faults on the rotor side converter of doubly fed induction generatorsDiagnóstico de fallas en el convertidor del rotor en generadores de inducción con rotor bobinado
(Comite Espanol Automatica Cea, 2018-01)
This article presents a fault diagnosis strategy for open switch faults in the rotor side converter of doubly fed induction generators. The proposed strategy uses state observers based on dynamic models obtained from an ...
Detection and isolation of current-sensor and open-switch faults in electric traction drives
(Institute of Electrical and Electronics Engineers, 2021-08)
In this work, a strategy for detection and isolation of current-sensors and open-switch faults in electric traction drives is proposed. An induction motor drive with only two current sensors is considered for the design ...
Fault section location in smart grid using smart switches
(2018-06-25)
This paper proposes the development of a method for monitoring and fault sections location in intelligent distribution systems, which is based on the replacement of equipment traditionally used in the protection of ...
A fault detection and diagnosis technique for multivariate processes using a PLS-decomposition of the measurement space
(Elsevier Science, 2013-10)
A newstatisticalmonitoring technique based on partial least squares (PLS) is proposed for fault detection and diagnosis inmultivariate processes that exhibit collinear measurements. A typical PLS regression (PLSR) modeling ...
Fault detection and isolation in cooperative mobile robots using multilayer architecture and dynamic observers
(CAMBRIDGE UNIV PRESS, 2011)
Mobile robot systems are being used more often in tasks that protect human operators from dangerous environments, but these benefits can be easily lost if the robots spend much of their time being repaired. This implies ...