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Reduced-Order Model...
Reduced-Order Modeling of Thermal Dynamics in District Energy Networks using Spectral Clustering
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- Simonsson, Johan (författare)
- Luleå tekniska universitet,Signaler och system,Optimation AB, Uppsala, Sweden
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- Atta, Khalid Tourkey (författare)
- Luleå tekniska universitet,Signaler och system
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- Birk, Wolfgang, 1968- (författare)
- Luleå tekniska universitet,Signaler och system
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(creator_code:org_t)
- IEEE, 2022
- 2022
- Engelska.
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Ingår i: 2022 IEEE Conference on Control Technology and Applications (CCTA). - : IEEE. - 9781665473385 ; , s. 144-150
- Relaterad länk:
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https://urn.kb.se/re...
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visa fler...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Simulation of thermal dynamics in city-scale district energy grids often becomes computationally prohibitive for long simulation runs. Current model order reduction methods offer limited interpretability with regards to the nonreduced system, and are not in general applicable for e.g., varying flow rates, multiple producers, or changing flow directions. This article presents a novel method based on graph theory that approximates the solution of an optimization problem that minimizes the local truncation error for heat transport in the grid. It is shown that the method can be used to reduce the thermal dynamic model of a city-scale energy grid, resulting in a coarser temporal and spatial resolution. The relative root mean square error was 2.3 % for the temperature in the evaluation scenario, comparing the reduced-order system with the nonreduced system at the instances of the coarser time-step.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Energiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Energy Engineering (hsv//eng)
Nyckelord
- Automatic Control
- Reglerteknik
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)
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