Browsing by Subject "System failures (Engineering)"
Now showing items 1-20 of 44
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A robust fault detection method using a zonotopic Kaucher set-membership approach
(2018-01-01)
Article
Open AccessThis paper presents a robust fault detection method using a zonotopic Kaucher set-membership method. The fault detection approach is based on checking the consistency between the model and the data. Consistency is given ... -
A robust fault diagnosis and forecasting approach based on Kalman filter and interval type-2 fuzzy logic for efficiency improvement of centrifugal gas compressor system
(2019-01-01)
Article
Open AccessThe paper proposes a robust faults detection and forecasting approach for a centrifugal gas compressor system, the mechanism of this approach used the Kalman filter to estimate and filtering the unmeasured states of the ... -
A set-based uncertainty quantification of evolving fuzzy models for data-driven prognostics
(Springer, 2022)
Conference report
Restricted access - publisher's policyRecent years have seen a great deal of innovation in the field of systems prognostics and health management. However, even with these advancements, some pertinent issues related with uncertainty in remaining useful life ... -
Abnormal quality detection and isolation in water distribution networks using simulation models
(2011)
Conference report
Restricted access - author's decision -
Actuator fault tolerance evaluation approach of nonlinear model predictive control systems using viability theory
(2018-11-01)
Article
Open AccessIn this paper, an approach to evaluate the actuator fault tolerance of a nonlinear model predictive control (NMPC) system using viability theory is proposed. Viability theory provides several concepts formulated in a set ... -
Adaptive threshold generation in robust fault detection using interval models: Time-domain and frequency-domain approaches
(2013-10)
Article
Restricted access - publisher's policyIn this paper, robust fault detection is addressed on the basis of evaluating the residual energy that it is compared against worst-case value (threshold) generated considering parametric modeling uncertainty using interval ... -
Characterisation of interval-observer fault detection and isolation properties using the set-invariance approach
(2019-01-01)
Article
Open AccessThe aim of this paper is to provide a robust Fault Detection and Isolation (FDI) approach that combines the set-invariance approach with a zonotopic interval observer. The effect of the uncertainty is taken into account ... -
Coherent transport of holes in microtap arrays
(Universitat Politècnica de Catalunya / Universitat Autònoma de Barcelona, 2008-09-15)
Master thesis
Open Access -
Comparison of two distributed fault diagnosis approaches based on Binary Integer Linear Programming (BILP) optimization
(CEUR-WS.org, 2018)
Conference report
Restricted access - publisher's policyTwo distributed fault diagnosis approaches were compared, by analogy, to determine which is more efficient regarding computational complexity. The first approach considered all “locally computed” global and compound sets ... -
Detection of inter-turn faults in multi-phase ferrite-PM assisted synchronous reluctance machine
(Multidisciplinary Digital Publishing Institute (MDPI), 2019-07-17)
Article
Open AccessInter-turn winding faults in five-phase ferrite-permanent magnet-assisted synchronous reluctance motors (fPMa-SynRMs) can lead to catastrophic consequences if not detected in a timely manner, since they can quickly progress ... -
Effects of the pre-processing algorithms in fault diagnosis of wind turbines
(Elsevier, 2018-12)
Article
Open AccessThe wind sectors pends roughly 2200M€ in repair the wind turbines failures. These failures do not contribute to the goal of reducing greenhouse gases emissions. The 25–35% of the generation costs are operation and maintenance ... -
EMA fault detection using fuzzy inference tools
(2012-03-02)
Part of book or chapter of book
Open AccessAcoustic emission (AE) is one of the most important non-destructive testing (NDT) methods for materials, constructions and machines. Acoustic emission is defined as the transient elastic energy that is spontaneously released ... -
Estudi d'algoritmes de detecció i classificació de fallades d’elements mecànics en contacte amb vapor d’aigua mitjançant anàlisi de senyals d'emissió acústica
(Universitat Politècnica de Catalunya, 2018)
Master thesis
Restricted access - author's decision -
Estudi de la detecció de falles en maquinària mitjançant algorismes de machine learning
(Universitat Politècnica de Catalunya, 2023-07-14)
Bachelor thesis
Open AccessAquest treball es centra en el desenvolupament d'algoritmes de Machine Learning per a la detecció i classificació de falles en una màquina a partir de dades generades pels seus sensors. Aquestes mesures dels sensors (un ... -
Estudio comparativo de técnicas de diagnóstico de fallos de un sistema simulado de dos depósitos interconectados
(Universitat Politècnica de Catalunya, 2016-06)
Master thesis
Restricted access - author's decisionPor mejor estructurados que estén nuestros sistemas y aunque empleemos en ellos excelentes estructuras para la recolección y almacenamiento de datos, es inverosímil que siempre sean exactos, por esto existen múltiples ... -
Fault detection and isolation using viability theory and interval observers
(2018-01-01)
Article
Open AccessThis paper proposes the use of interval observers and viability theory in fault detection and isolation (FDI). Viability theory develops mathematical and algorithmic methods for investigating the viability constraints ... -
Fault diagnosis and fault tolerant control of wind turbines via a discrete time controller with disturbance compensator
(2015)
Article
Open AccessThis paper develops a fault diagnosis (FD) and fault-tolerant control (FTC) of pitch actuators in wind turbines. This is accomplished by combining a disturbance compensator with a controller, both of which are formulated ... -
Fault diagnosis and fault-tolerant control of wind turbines via a discrete time controller with a disturbance compensator
(2015-05-12)
Article
Open AccessThis paper develops a fault diagnosis (FD) and fault-tolerant control (FTC) of pitch actuators in wind turbines. This is accomplished by combining a disturbance compensator with a controller, both of which are formulated ... -
Feature Selection Algorithms for Wind Turbine Failure Prediction
(2019-01-31)
Article
Open AccessIt is well known that each year the wind sector has profit losses due to wind turbine failures and operation and maintenance costs. Therefore, operations related to these actions are crucial for wind farm operators and ... -
Improved fault detection and isolation strategy using a bank of interval observers
(International Federation of Automatic Control (IFAC), 2014)
Conference report
Restricted access - publisher's policyIn this paper, an improved algorithm for actuator-fault detection and isolation (FDI) using a bank of interval observers is presented, where each interval observer matches one considered system mode. In this approach, ...
