AC Loss Analysis and Measurement of a Hybrid Transposed Hairpin Winding for EV Traction Machines

• Published in: IEEE transactions on industrial electronics (1982) Vol. 70; no. 4; pp. 3525 - 3536
• Main Authors: Ju, Xiaowei, Cheng, Yuan, Du, Bochao, Yang, Mingliang, Yang, Dazhi, Cui, Shumei
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.04.2023; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Ac loss; Circuits; Conductors; Density distribution; electric vehicle (EV); Finite element method; hairpin winding; litz winding; Loss measurement; Magnetic fields; permanent magnet synchronous motor; Stator windings; Stators; Topology; Winding; Windings; Wire; Wires

To address the problem of high-frequency ac loss of hairpin winding, a hybrid transposed hairpin winding (HTHW) scheme, which combines flat wire and litz wire, is proposed. The HTHW can effectively reduce the high-frequency ac loss, while maintaining a relatively high slot fill factor. In this artic...