Browsing by Subject "Failure analysis (Engineering)"
Now showing items 1-20 of 49
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A fault/anomaly system prognosis using a data-driven approach considering uncertainty
(2012)
Conference report
Restricted access - publisher's policy -
A methodology for incipient fault detection
(Institute of Electrical and Electronics Engineers (IEEE), 2014)
Conference report
Open AccessThis paper proposes a fault detection methodology for incipient faults that combines different residual generation methods (observers and l-step ahead predictors) with different convergence velocity to the real output ... -
A supervisory active fault tolerant control framework for constrained linear systems*
(2020)
Conference report
Open AccessIn this paper, a supervisory active fault tolerant control (SAFTC) scheme is presented for linear systems with constraints. The SAFTC framework is composed of a fault diagnosis module, a reconfigurable controller and a ... -
Actualización del Manual de Cálculo IFSM para los indicadores del SISC de una central nuclear
(Universitat Politècnica de Catalunya, 2020-01-31)
Bachelor thesis
Restricted access - author's decisionEl objetivo de este trabajo de fin de grado puede desglosarse en hasta tres vertientes. Por un lado, a nivel académico, este trabajo pretende documentar a cualquier persona ajena a la energía nuclear acerca de los protocolos ... -
Analysis of Neutral Point Clamped power converters in FPL systems under grid faults
(2022)
Conference lecture
Restricted access - publisher's policyDistribution lines are dealing with several challenges such as the increase of power consumption, the integration of renewable resources, etc. which are driving them to more intelligent grids or smart grids. In these smart ... -
Análisis de sensibilidad del cambio de metodología con parámetros alfa en el cálculo de fallos de causa común para una central nuclear
(Universitat Politècnica de Catalunya, 2019-07-03)
Bachelor thesis
Open AccessEl proyecto final de grado Análisis de sensibilidad del cambio de metodología con parámetros Alfa en el cálculo de fallos de causa común para una Central Nuclear se enmarca en un convenio de colaboración entre una central ... -
Approximating fault detection linear interval observers using -order interval predictors
(2017-07-01)
Article
Open AccessInterval observers can be described by an autoregressive-moving-average model while ¿-order interval predictors by a moving-average model. Because an autoregressive-moving-average (ARMA) model can be approximated by a ... -
BRIDGE: matching model-based diagnosis from FDI and DX perspectives
(Springer Nature, 2019-06-22)
Part of book or chapter of book
Open AccessAfter the introduction section of Chapter 7, section 7.2 first presents a brief overview of the approaches proposed by the FDI and DX model- based diagnosis communities. Although quite commonplace, this overview is neces- ... -
Cloud monitoring system for industrial engines maintenance
(Universitat Politècnica de Catalunya, 2020-07-21)
Master thesis
Open AccessThis document reflects the memory of the Master's Final Project of the master's studies: Master's degree in Automatic Systems and Industrial Electronics Engineering (MUESAEI), from the Polytechnic University of Catalonia ... -
Combined sensitivity analysis for multiple failure modes
(2022-05-10)
Article
Open AccessSensitivity analysis identifies the influential parameters and it is a key step in the design process. Focusing on reliability based design, the probability of a failure mode and its sensitivity to input uncertainties are ... -
Control predictiu d'errors de desalineament en un sistema de mesura parell
(Universitat Politècnica de Catalunya, 2019-07-18)
Bachelor thesis
Restricted access - author's decision
Covenantee: Airtificial Intelligent RobotsEs realitzarà un estudi sobre com predir els possibles errors de desalineament d’una màquina tipus EPP (Electric Power Pack). Parametritzant la tipologia de l’error, és limitarà el número de variables a estudiar. A ... -
Detección de averías en un aerogenerador
(Universitat Politècnica de Catalunya, 2017-06-15)
Bachelor thesis
Restricted access - confidentiality agreement -
Detection of Wind Turbine Failures through Cross-Information between Neighbouring Turbines
(Multidisciplinary Digital Publishing Institute, 2022-10-01)
Article
Open AccessIn this paper, the time variation of signals from several SCADA systems of geographically closed turbines are analysed and compared. When operating correctly, they show a clear pattern of joint variation. However, the ... -
Diagnóstico y control tolerante a fallos de un robot móvil omnidireccional
(Universitat Politècnica de Catalunya, 2015-10)
Bachelor thesis
Restricted access - author's decision -
Distributed fault diagnosis using minimal structurally over-determined sets: Application to a water distribution network
(IEEE Press, 2016)
Conference report
Open AccessDistributed fault diagnosis is becoming more and more common in industries, to diagnose faults in any large scale system. There are a lot of disadvantages using centralized fault diagnosis in large-scale systems, since in ... -
Enhanced equal frequency partition method for the identification of a water demand system
(Sarjoughian,H.S.; Cellier, F.E.; Marefat, M.M.; Rozenblit, J.W. (eds.) Institute of Electrical and Electronics Engineers, 2000)
Conference report
Open AccessThis paper deals with unsupervised partitioning. A first goal of this paper is to present an enhancement to the Equal Frequency Partition (EFP) method that allows to reduce, to some extent, the main drawback of this classical ... -
Estudio de un sistema de diagnóstico de fallos de una red de sensores
(Universitat Politècnica de Catalunya, 2017-07-04)
Master thesis
Open AccessEste trabajo consiste en el estudio de un sistema de diagnóstico de fallos de una red de sensores interconectados en una red física de transporte de agua potable. Se trata de estudiar los datos brutos horarios de los ... -
Exploratory analysis of SCADA data from wind urbines using the K-Means clustering algorithm for predictive maintenance purposes
(2023-02-10)
Article
Open AccessProduct maintenance costs throughout the product’s lifetime can account for between 30–60% of total operating costs, making it necessary to implement maintenance strategies. This problem not only affects the economy but ... -
Fault detection and identification in a fuel cell system
(IOS Press, 2009)
Conference report
Restricted access - publisher's policyIn this work a fault diagnosis system for non-linear plants based on fuzzy logic, called VisualBlock-FIR, is presented and applied to an energy generation system based on fuel cells. VisualBlock-FIR runs under the Simulink ... -
Fault detection and isolation in critical infrastructure systems
(2014)
Conference report
Open AccessCritical infrastructure systems (CIS) are complex large-scale systems which in turn require highly sophisticated supervisory control systems to ensure that high performance can be achieved and maintained under adverse ...
