Electrical and Thermomechanical Co-Simulation Platform for NPP

In order to analyze the safety of nuclear power plants (NPP), interactions between thermomechanical and automation processes, the on-site electrical grid, and the off-site transmission system should be studied in detail. However, an initial survey of simulation tools used for the modelling and simul...

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Main Authors: Poria Astero, Pasi Laakso, Seppo Hänninen, Robert John Millar, Matti Lehtonen
Format: Article
Language:English
Published: MDPI AG 2021-02-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/14/4/939
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author Poria Astero
Pasi Laakso
Seppo Hänninen
Robert John Millar
Matti Lehtonen
author_facet Poria Astero
Pasi Laakso
Seppo Hänninen
Robert John Millar
Matti Lehtonen
author_sort Poria Astero
collection DOAJ
description In order to analyze the safety of nuclear power plants (NPP), interactions between thermomechanical and automation processes, the on-site electrical grid, and the off-site transmission system should be studied in detail. However, an initial survey of simulation tools used for the modelling and simulation of NPP shows that existing simulation tools have some drawbacks in properly simulating the aforementioned interactions. In fact, they simulate detailed electrical power systems and thermomechanical systems but neglect the detailed interactions of the electrical system with thermomechanical and automation processes. To address this challenge, this paper develops an open-source co-simulation platform which connects Apros, a proprietary simulator of the thermomechanical and automation processes in NPP, to power system simulators. The proposed platform provides an opportunity to simulate both the electrical and thermomechanical systems of an NPP simultaneously, and study the interactions between them without neglecting any details. This detailed analysis can identify critical faults more accurately, and provides better support for probabilistic risk analyses (PRA) of NPP. To investigate the effectiveness of the proposed platform, detailed thermomechanical and electrical models of an NPP, located in Finland, are cosimulated. The preliminary results emphasize that neglecting the detailed interactions between domains of NPP may lead to inaccurate simulation results and may affect NPP safety.
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spelling doaj.art-ca2791218e6c406b901f435f73fdc2ee2023-12-03T13:12:49ZengMDPI AGEnergies1996-10732021-02-0114493910.3390/en14040939Electrical and Thermomechanical Co-Simulation Platform for NPPPoria Astero0Pasi Laakso1Seppo Hänninen2Robert John Millar3Matti Lehtonen4Smart Grids, VTT Technical Research Centre of Finland, FI02044 Espoo, FinlandSmart Grids, VTT Technical Research Centre of Finland, FI02044 Espoo, FinlandSmart Grids, VTT Technical Research Centre of Finland, FI02044 Espoo, FinlandElectr. Engin. and Autom. Dept. Aalto University, FI00076 Espoo, FinlandElectr. Engin. and Autom. Dept. Aalto University, FI00076 Espoo, FinlandIn order to analyze the safety of nuclear power plants (NPP), interactions between thermomechanical and automation processes, the on-site electrical grid, and the off-site transmission system should be studied in detail. However, an initial survey of simulation tools used for the modelling and simulation of NPP shows that existing simulation tools have some drawbacks in properly simulating the aforementioned interactions. In fact, they simulate detailed electrical power systems and thermomechanical systems but neglect the detailed interactions of the electrical system with thermomechanical and automation processes. To address this challenge, this paper develops an open-source co-simulation platform which connects Apros, a proprietary simulator of the thermomechanical and automation processes in NPP, to power system simulators. The proposed platform provides an opportunity to simulate both the electrical and thermomechanical systems of an NPP simultaneously, and study the interactions between them without neglecting any details. This detailed analysis can identify critical faults more accurately, and provides better support for probabilistic risk analyses (PRA) of NPP. To investigate the effectiveness of the proposed platform, detailed thermomechanical and electrical models of an NPP, located in Finland, are cosimulated. The preliminary results emphasize that neglecting the detailed interactions between domains of NPP may lead to inaccurate simulation results and may affect NPP safety.https://www.mdpi.com/1996-1073/14/4/939cosimulationelectrical systemthermomechanical systemnuclear power plant safety
spellingShingle Poria Astero
Pasi Laakso
Seppo Hänninen
Robert John Millar
Matti Lehtonen
Electrical and Thermomechanical Co-Simulation Platform for NPP
Energies
cosimulation
electrical system
thermomechanical system
nuclear power plant safety
title Electrical and Thermomechanical Co-Simulation Platform for NPP
title_full Electrical and Thermomechanical Co-Simulation Platform for NPP
title_fullStr Electrical and Thermomechanical Co-Simulation Platform for NPP
title_full_unstemmed Electrical and Thermomechanical Co-Simulation Platform for NPP
title_short Electrical and Thermomechanical Co-Simulation Platform for NPP
title_sort electrical and thermomechanical co simulation platform for npp
topic cosimulation
electrical system
thermomechanical system
nuclear power plant safety
url https://www.mdpi.com/1996-1073/14/4/939
work_keys_str_mv AT poriaastero electricalandthermomechanicalcosimulationplatformfornpp
AT pasilaakso electricalandthermomechanicalcosimulationplatformfornpp
AT seppohanninen electricalandthermomechanicalcosimulationplatformfornpp
AT robertjohnmillar electricalandthermomechanicalcosimulationplatformfornpp
AT mattilehtonen electricalandthermomechanicalcosimulationplatformfornpp