Mitigation of High-Frequency Eddy Current Losses in Hairpin Winding Machines

Machines

Ahmed Selema¹  Mohamed N. Ibrahim¹  Peter Sergeant¹ 

[1] Department of Electromechanical, Systems, and Metal Engineering, Ghent University, 9000 Ghent, Belgium;

关键词: AC losses;    electromagnetics;    magnet wires;    eddy current losses;    electric machines;   

DOI  :  10.3390/machines10050328

来源: DOAJ

【 摘 要 】

In high-speed and high-frequency electric machines, one of the major issues that impacts the performance and capability of a machine is the high-frequency eddy current losses in the windings. This work deals with AC winding losses in flat rectangular conductors. Aiming for eddy current loss mitigation, two different materials are investigated and compared for the same winding design, namely copper and aluminum. Using the finite element method (FEM), the conductor loss and current density behavior are simulated at the strand level. Further, in order to verify the simulated losses, the AC losses are measured and compared over a wide range of frequencies. Finally, recommendations are provided based on the obtained measurements to identify the best winding topology that is most suitable for automotive applications.

【 授权许可】

Unknown