Digital Twin-Based Fault Detection and Prioritisation in District Heating Systems: A Case Study in Denmark

Frederik Wagner Madsen, Theis Bank, Henrik Alexander Nissen Søndergaard*, Lasse Kappel Mortensen, Hamid Reza Shaker

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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Abstract

Faults in district heating systems (DHS) cause suboptimal operating conditions, which increase energy losses. As DHSs are critical infrastructure for many households in Denmark, these faults should be detected and corrected quickly. A novel model-based fault detection and diagnosis framework has been applied to detect and prioritise faults. The framework uses a bound for normal operation based on the residuals between historical sensor data and simulated properties in a digital twin of the DHS. The faults detected are prioritised based on the fault probability calculated using the Chernoff bound method. A case study on a Danish DHS has proven that the framework can produce a prioritised list of faults that maintenance crews can use to target faults with the highest probability. Furthermore, the digital twin allowed for fault location investigation, which could correlate different faults in the DHS. The framework has the potential for real-time fault detection and diagnosis. However, more precise digital twins need to be developed.
Original languageEnglish
Title of host publicationEnergy Informatics : Third Energy Informatics Academy Conference, EI.A 2023, Campinas, Brazil, December 6–8, 2023, Proceedings, Part II
EditorsBo Nørregaard, Luiz Carlos Pereira da Silva, Zheng Ma
Volume2
PublisherSpringer
Publication date2024
Pages277–291
ISBN (Print)978-3-031-48651-7
ISBN (Electronic)978-3-031-48652-4
DOIs
Publication statusPublished - 2024
EventEnergy Informatics.Academy Conference 2023 - Unicamp campus, São Paulo , Brazil
Duration: 6. Dec 20238. Dec 2023
Conference number: 3
https://www.energyinformatics.academy/eia-2023-conference

Conference

ConferenceEnergy Informatics.Academy Conference 2023
Number3
LocationUnicamp campus
Country/TerritoryBrazil
CitySão Paulo
Period06/12/202308/12/2023
Internet address
SeriesLecture Notes in Computer Science
Volume14468
ISSN0302-9743

Keywords

  • fault detection and diagnosis
  • district heating systems
  • digital twin
  • Chernoff bound

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