Electrical and Thermomechanical Co-Simulation Platform for NPP

Poria Astero, Pasi Laakso, Seppo Hänninen, Robert John Millar and Matti Lehtonen
Additional contact information
Poria Astero: Smart Grids, VTT Technical Research Centre of Finland, FI02044 Espoo, Finland
Pasi Laakso: Smart Grids, VTT Technical Research Centre of Finland, FI02044 Espoo, Finland
Seppo Hänninen: Smart Grids, VTT Technical Research Centre of Finland, FI02044 Espoo, Finland
Robert John Millar: Electr. Engin. and Autom. Dept. Aalto University, FI00076 Espoo, Finland
Matti Lehtonen: Electr. Engin. and Autom. Dept. Aalto University, FI00076 Espoo, Finland

Energies, 2021, vol. 14, issue 4, 1-16

Abstract: 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.

Keywords: cosimulation; electrical system; thermomechanical system; nuclear power plant safety (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/14/4/939/pdf (application/pdf)
https://www.mdpi.com/1996-1073/14/4/939/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:14:y:2021:i:4:p:939-:d:497242

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().