Comparison of high-speed electrical motors for a turbo circulator application

This paper introduces the analysis of three different electrical machine topologies for a special application. The machines are designed to operate with 6 kW output at 120 000 rpm. The design aspects of one squirrel cage induction motor and two permanent magnet machines are presented. The comparison of the machines include electromagnetic, thermal and mechanical analyses. The advantages and drawbacks of each topology under consideration are drawn. The comparison structure helps in selecting the suitable electrical machine topology also for other High-Speed (HS) applications.