Problem of Reliability, Verification of Electrical Power Systems Simulation and Ways of Solving it

The analysis of existing problem of reliability and verification of simulation tools of electrical power systems is presented in this article. It is proved, that the solution of this problem is not possible by using simulation tools utilizing numerical methods. Described the concept and tools are based on alternative way of electrical power systems simulation called the hybrid simulation. This way provides an effective solution to the problem of reliability and verification simulation tools of electrical power systems.

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Real Time Hybrid Simulation of Electrical Power Systems: Concept, Tools, Field Experience and Smart Grid Challenges

International Journal of Smart Grid and Clean Energy ◽

10.12720/sgce.1.1.67-78 ◽

2012 ◽

pp. 67-78 ◽

Cited By ~ 14

Author(s):

A. Prokhorov ◽

Yu. Borovikov ◽

A. Gusev

Keyword(s):

Smart Grid ◽

Power Systems ◽

Real Time ◽

Field Experience ◽

Electrical Power ◽

Hybrid Simulation ◽

Electrical Power Systems

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Electrical and Thermomechanical Co-Simulation Platform for NPP

Energies ◽

10.3390/en14040939 ◽

2021 ◽

Vol 14 (4) ◽

pp. 939

Author(s):

Poria Hasanpor Divshali ◽

Pasi Laakso ◽

Seppo Hänninen ◽

Robert John Millar ◽

Matti Lehtonen

Keyword(s):

Power Systems ◽

Nuclear Power ◽

Power Plants ◽

Electrical Power ◽

Simulation Platform ◽

Electrical System ◽

Electrical Power Systems ◽

Electrical Grid ◽

Simulation Tools ◽

Initial Survey

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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