Assessment of materials for high-speed PMSMs having a tooth-coil topology

Abstract

In this paper, materials frequently used in high-speed (HS) electrical machines are assessed. High-speed permanent magnet synchronous machines with a special tooth-coil topology serve as an example for the assessment. The lamination and rotor sleeve materials are compared taking into account their price, per unit losses, resistivity, and other factors. The resulting tables provide the electrical machine designer with a means to enhance the HS machine performance at low costs.