TY - GEN

T1 - Numerical Simulation of Natural Convection in the Power Transformer

AU - Smolyanov, Ivan

AU - Shmakov, Evgeniy

AU - Lapin, Andrei

N1 - ACKNOWLEDGMENT The research was carried out within the state assignment with the financial support of the Ministry of Science and Higher Education of the Russian Federation (subject No. FEUZ-2022-0030 Development of an intelligent multi-agent system for modeling deeply integrated technological systems in the power industry).

PY - 2023/9/10

Y1 - 2023/9/10

N2 - Numerical analysis of natural convection in a three-phase power transformer filled with industrial oil is considered. The paper presents a comparative analysis of the temperature and hydrodynamic fields when reducing a load factor by three different approaches to the simulation of the transformer tank area. The initial conditions of the velocity, pressure, and temperature fields are the results of calculating a stationary study of the convection in a power transformer. It is shown that considering the computational domain as a one-phase case significantly distorts the results. The appropriate way to simulate a cooling system is to use the inlet-outlet boundary conditions calibrated by physical experiments or numerical simulations. All the calculations were performed using the k - ϵ turbulence model implemented in Comsol Multiphysics. The presented results are of particular interest for the power transformer oil condition forecasting by numerical simulation tools.

AB - Numerical analysis of natural convection in a three-phase power transformer filled with industrial oil is considered. The paper presents a comparative analysis of the temperature and hydrodynamic fields when reducing a load factor by three different approaches to the simulation of the transformer tank area. The initial conditions of the velocity, pressure, and temperature fields are the results of calculating a stationary study of the convection in a power transformer. It is shown that considering the computational domain as a one-phase case significantly distorts the results. The appropriate way to simulate a cooling system is to use the inlet-outlet boundary conditions calibrated by physical experiments or numerical simulations. All the calculations were performed using the k - ϵ turbulence model implemented in Comsol Multiphysics. The presented results are of particular interest for the power transformer oil condition forecasting by numerical simulation tools.

UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=85174920099

U2 - 10.1109/RusAutoCon58002.2023.10272835

DO - 10.1109/RusAutoCon58002.2023.10272835

M3 - Conference contribution

SN - 979-835034555-1

SP - 936

EP - 941

BT - Proceedings - 2023 International Russian Automation Conference, RusAutoCon 2023

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2023 International Russian Automation Conference (RusAutoCon)

Y2 - 10 September 2023 through 16 September 2023

ER -