Rotor Constructions for a High-Speed Induction Motor.

摘要

The motivation of this work was to identify the changes in the optimal design of a high-speed induction motor in comparison to a conventional motor design. The aim was acquire knowledge on how to build good high-speed induction motors. Special attention was paid on rotors suitable for a high-speed motor. Literature study showed that a construction of a high-speed induction motor is subjected to changes in the design. The lamination and winding materials must be suited for a high frequency voltage, current and flux. The waveform of the magnetic air gap flux should be made as sinusoidal as possible in order to avoid excessive power loss. This is important especially with solid steel rotors. Different ways to obtain the flux with a low harmonic content are suggested in the literature review.