Magneto-thermal and aerodynamic study of a toroidal transformer dimensioning

Issue title: Electromagnetic Fields in Mechatronics, Electrical and Electronic Engineering

Guest editors: P. Di Barba, Roberto Galdi, M.E. Mognaschi and S. Wiak

Article type: Research Article

Authors: Boukhenoufa, Farouk^{a; b;} | Ikhlef, Nabil^a | Aomar, Lyes^a | Hacib, Tarik^a

Affiliations: [a] Electrical and Industrial Electrical Laboratory (L2EI), University of Jijel, Algeria | [b] University of 20 August 1955-Skikda, Algeria

Correspondence: [*] Corresponding author: F. Boukhenoufa, Electrical and Industrial Electrical Laboratory (L2EI), University of Jijel and University of 20 August 1955-Skikda, Algeria. Tel.: +213 670375917; E-mail: [email protected], [email protected]

Abstract: Toroidal transformers are designed using a circular core instead of the traditional laminated rectangular core, which reduces inductance losses and increases efficiency. The primary goal of this study is to understand the cooling mechanisms involved in electrical transformers, which are critical components in power systems. Steady electromagnetic, fluid flow and temperature equations are simultaneously solved (direct method) using the finite elements method FEM of a shielded toroidal transformer. The paper focuses on creating a direct-coupled model (DCM) to understand the processes involved in electrical transformers cooling, using Magneto-AeroDynamic (MAD) models. The nonlinear models developed will be implemented and validated in this parametric study for different inlet velocities and the number of outlet. Transformers generate heat during operation, and it’s important to control the temperature to prevent overheating and ensure reliable operation.

Keywords: Shielded toroidal transformer, magneto-aerodynamic, direct-coupled model (DCM), parametric study

DOI: 10.3233/JAE-230243

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 76, no. 1-2, pp. 15-33, 2024