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Stator inter-turn faults diagnosis in induction motors using zero-sequence signal injection
(Institution of Engineering and Technology, 2020-12)
This study presents a strategy for stator inter-turn faults diagnosis in induction motors (IMs) operating under timevariable load and time-variable speed conditions. The strategy consists in injecting a zero-sequence ...
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 ...
Fault diagnosis scheme for open-circuit faults in field-oriented control induction motor drives
(The Institution of Engineering and Technology, 2013-05)
In this study, a new model-based fault detection and isolation (FDI) strategy is proposed for field-oriented control (FOC) induction motor (IM) drives. Actuator faults are addressed, and specifically, single open-circuit ...
On Line Diagnosis in Induction Motors and Load
(International Frequency Sensor Association, 2018)
Induction motors are essential components in the vast majority of industrial processes. The different faults on induction machines may yield drastic consequences for an industrial process. The main problems are related to ...
Fault diagnosis in grid-connected PV NPC inverters by a model-based and data processing combined approach
(IET, 2019-10)
This paper presents a fault detection and isolation (FDI) method for open-circuit faults (OCF) in the switching devices of a grid-connected neutral-point-clamped (NPC) inverter for photovoltaic (PV) applications. The ...
Actuator Fault Diagnosis Using Probabilistic Ultimate Bounds
(Institute of Electrical and Electronics Engineers, 2016-06)
This work proposes a fault diagnosis scheme where the occurrence of failures is detected when certain trajectories reach some probabilistic sets, allowing the presence of unbounded disturbances. This is the first result ...
A structural approach to design sensor networks for fault diagnosis
(American Chemical Society, 2013-12)
Key faults significantly affect the normal operation of the process originating risk conditions. These failures should be identified even in the presence of missing measurements or outliers. In this work a new strategy to ...
Rotor fault diagnosis in permanent magnet synchronous machine using the midpoint voltage of windings
(Institution of Engineering and Technology, 2020-02)
A new strategy is proposed here for the diagnosis of asymmetric demagnetisation in permanent magnet synchronous machines. The strategy is based on the measuring of the voltage at the midpoint of the windings within a phase. ...
Modeling of Faults in Chemical Reactor with Continuous Agitation (CSTR)Modelización de Fallas en Reactor Químico con Agitación Continua (CSTR)
(Universidad Tecnológica Nacional, 2019)
Actuator fault tolerant control based on probabilistic ultimate bounds
(Elsevier Science Inc., 2019-01)
In this work we introduce a novel set-based fault tolerant control scheme for linear systems under Gaussian disturbances. In the proposed strategy, actuator faults are detected and diagnosed when residual trajectories enter ...