IEA DHC XIII-03 Generation of simulated faulty datasets to ease heating network fault detection

7 Dec 2023 · 6 min
6:04

Presentation by Thibault Hussok (CAA Research Institute) describing a reproducible methodology to generate simulated 4D datasets for fault detection in district heating (DHC/AES-18) components. The workflow: identify candidate Modelica models from libraries, characterize features and fault-modelling ability, select or adapt models, then run randomized fault-injection simulations (example: boiler model from EXLIB). Dataset example: reference plus ~3×100 simulations across 13 operating series (~4,000 total) sampled at 5-minute intervals. Early ML tests (focused on a boiler HNC signal) show K-Nearest Neighbors achieving 0.99 accuracy for certain fault types; multi-fault detection (efficiency+heat loss) is less reliable.

Questions this video answers

Thibault Hussok, research engineer at CAA Research Institute.

CAA Research Institute, Institut Fraunhofer, project AIDHE (IEA-DHC).

13 boiler models in 9 Modelica libraries.

Approximately 3×100 simulations per condition across 13 series (nearly 4,000 simulations) with a 5-minute sampling interval.

K-Nearest Neighbors (KNN) with reported accuracy of 0.99.

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