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This paper discusses the design procedure of a super high speed permanent magnet synchronous machine. A 3kW radial PMSM designed for operation up to 150,000 r/min is proposed in the paper. Thanks to the super high speed, the designed motor can achieve high energy density at 2.5 kW/kg(housing weight included) and efficiency is over 97%. The super high speed brings challenges both on electrical design...
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