Slot Design Optimization for Copper Losses Reduction in Electric Machines for High Speed Applications

Applied Sciences

Claudio Bianchini¹  Stefano Nuzzo¹  Ambra Torreggiani¹  Giovanni Franceschini¹  Mattia Vogni¹  Davide Barater¹ 

[1] DIEF, University of Modena and Reggio Emilia Italy, 41121 Modena, Italy;

关键词: hairpins winding;    skin effect;    proximity effect;    high speed drive;   

DOI  :  10.3390/app10217425

来源: DOAJ

【 摘 要 】

The need of a wide operating range and a high power density in electric machines for full- and hybrid electric vehicles in traction applications has led to an increase in the operating frequency of the machine. When the electric frequency increases, the additional losses in stator windings become an issue and they have to be taken into account in the design of the electric machine. This issue is more critical when hairpin windings are employed, due to the the skin and proximity effects which produce increased copper losses. In this paper, the relationships between different stator slot parameters (tooth width, slot opening, etc.) and stator winding copper losses have been analysed in order to identify an optimal design of a single stator slot .

【 授权许可】

Unknown