Distributed Measuring System for Predictive Diagnosis of Uninterruptible Power Supplies in Safety-Critical Applications

This work proposes a scalable architecture of an Uninterruptible Power Supply (UPS) system, with predictive diagnosis capabilities, for safety critical applications. A Failure Mode and Effect Analysis (FMEA) has identified the faults occurring in the energy storage unit, based on Valve Regulated Lea...

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Main Author: Sergio Saponara
Format: Article
Language:English
Published: MDPI AG 2016-04-01
Series:Energies
Subjects:
Online Access:http://www.mdpi.com/1996-1073/9/5/327
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author Sergio Saponara
author_facet Sergio Saponara
author_sort Sergio Saponara
collection DOAJ
description This work proposes a scalable architecture of an Uninterruptible Power Supply (UPS) system, with predictive diagnosis capabilities, for safety critical applications. A Failure Mode and Effect Analysis (FMEA) has identified the faults occurring in the energy storage unit, based on Valve Regulated Lead-Acid batteries, and in the 3-phase high power transformers, used in switching converters and for power isolation, as the main bottlenecks for power system reliability. To address these issues, a distributed network of measuring nodes is proposed, where vibration-based mechanical stress diagnosis is implemented together with electrical (voltage, current, impedance) and thermal degradation analysis. Power system degradation is tracked through multi-channel measuring nodes with integrated digital signal processing in the transformed frequency domain, from 0.1 Hz to 1 kHz. Experimental measurements on real power systems for safety-critical applications validate the diagnostic unit.
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spelling doaj.art-e95b999c0a2c42368823e96dbeb9750c2022-12-22T04:00:21ZengMDPI AGEnergies1996-10732016-04-019532710.3390/en9050327en9050327Distributed Measuring System for Predictive Diagnosis of Uninterruptible Power Supplies in Safety-Critical ApplicationsSergio Saponara0Dipartimento Ingegneria della Informazione-Università di Pisa, via G. Caruso 16, Pisa 56122, ItalyThis work proposes a scalable architecture of an Uninterruptible Power Supply (UPS) system, with predictive diagnosis capabilities, for safety critical applications. A Failure Mode and Effect Analysis (FMEA) has identified the faults occurring in the energy storage unit, based on Valve Regulated Lead-Acid batteries, and in the 3-phase high power transformers, used in switching converters and for power isolation, as the main bottlenecks for power system reliability. To address these issues, a distributed network of measuring nodes is proposed, where vibration-based mechanical stress diagnosis is implemented together with electrical (voltage, current, impedance) and thermal degradation analysis. Power system degradation is tracked through multi-channel measuring nodes with integrated digital signal processing in the transformed frequency domain, from 0.1 Hz to 1 kHz. Experimental measurements on real power systems for safety-critical applications validate the diagnostic unit.http://www.mdpi.com/1996-1073/9/5/327uninterruptible power supply (UPS)predictive maintenancemeasurements on power transformersbattery monitoringpower electronics and components
spellingShingle Sergio Saponara
Distributed Measuring System for Predictive Diagnosis of Uninterruptible Power Supplies in Safety-Critical Applications
Energies
uninterruptible power supply (UPS)
predictive maintenance
measurements on power transformers
battery monitoring
power electronics and components
title Distributed Measuring System for Predictive Diagnosis of Uninterruptible Power Supplies in Safety-Critical Applications
title_full Distributed Measuring System for Predictive Diagnosis of Uninterruptible Power Supplies in Safety-Critical Applications
title_fullStr Distributed Measuring System for Predictive Diagnosis of Uninterruptible Power Supplies in Safety-Critical Applications
title_full_unstemmed Distributed Measuring System for Predictive Diagnosis of Uninterruptible Power Supplies in Safety-Critical Applications
title_short Distributed Measuring System for Predictive Diagnosis of Uninterruptible Power Supplies in Safety-Critical Applications
title_sort distributed measuring system for predictive diagnosis of uninterruptible power supplies in safety critical applications
topic uninterruptible power supply (UPS)
predictive maintenance
measurements on power transformers
battery monitoring
power electronics and components
url http://www.mdpi.com/1996-1073/9/5/327
work_keys_str_mv AT sergiosaponara distributedmeasuringsystemforpredictivediagnosisofuninterruptiblepowersuppliesinsafetycriticalapplications