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Fault Detection On Heat Pump Operational DataUsing Machine Learning Algorithms
Malmö University, Faculty of Technology and Society (TS), Department of Computer Science and Media Technology (DVMT).
2024 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Heat pumps, being complex systems, are susceptible to various malfunctions. By harnessing contemporary IoT technologies, these devices continuously transmit data which enables monitoring, maintenance, and efficiency. This study focuses on identifying compressor short duration cycles as faults through supervised machine learning algorithms such as XGBoost, Random Forest, SVM, and k-NN. Data preprocessing and labeling were conducted using extensive logged data from heat pump systems, addressing issues like high dimensionality, data sparsity, and temporal dependencies. The methodology included feature engineering, interpolation of missing data, and downsampling for compressor short duration cycles. Supervised machine learning models were applied to classify these short duration cycles. Among the models, XGBoost achieved the highest accuracy and F1-scores, effectively distinguishing between normal and fault conditions. The findings highlight the potential of machine learning to enhance predictive maintenance and operational efficiency in heat pumps.

Place, publisher, year, edition, pages
2024. , p. 69
Keywords [en]
Heat Pumps, Fault Detection, Compressor Short Duration Cycles, Supervised Machine Learning, Internet of Things
National Category
Computer Systems
Identifiers
URN: urn:nbn:se:mau:diva-71597OAI: oai:DiVA.org:mau-71597DiVA, id: diva2:1905602
External cooperation
Bosch R&D Center Lund, Sweden
Educational program
TS Computer Science: Applied Data Science
Presentation
2024-08-27, 16:43 (English)
Supervisors
Examiners
Available from: 2024-10-14 Created: 2024-10-14 Last updated: 2025-03-03Bibliographically approved

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf