Abstract
The electrical steel market is expected to witness considerable growth in the coming years due to increasing demand in the automotive industry. High-speed electric motors have become inevitable for electric vehicle applications (EV). Almost all laminated steels suffer from high iron loss when operated at high frequency. Soft magnetic composites (SMC) are an ideal candidate for high-speed motor designs with high efficiency and low iron losses. This paper compares the performance of the SMC and laminated steel-based design for a radial flux outer rotor permanent magnet synchronous machine (PMSM) and its impact on the core loss at higher frequencies. Also, this paper examines two different winding patterns (distributed and fractional) for the optimal field weakening operation.
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