Very-High-Speed Slotless Permanent-Magnet Motors: Analytical Modeling, Optimization, Design, and Torque Measurement Methods

This paper presents a very-high-speed (VHS) slotless permanent-magnet motor design procedure using an analytical model. The model is used to design the optimal prototype (target: 200 kr/min, 2 kW). The multiphysics analytical model allows a quick optimization process. The presented model includes th...

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Veröffentlicht in:IEEE transactions on industrial electronics (1982) 2010-01, Vol.57 (1), p.296-303
Hauptverfasser: Pfister, P.-D., Perriard, Y.
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description This paper presents a very-high-speed (VHS) slotless permanent-magnet motor design procedure using an analytical model. The model is used to design the optimal prototype (target: 200 kr/min, 2 kW). The multiphysics analytical model allows a quick optimization process. The presented model includes the magnetic fields, the mechanical stresses in the rotor, the electromagnetic power losses, the windage power losses, and the power losses in the bearings. VHS machines need a new torque measurement method. This paper presents the developed method. It also presents a ball bearing friction torque measurement method designed particularly for VHS machines. Remarkably, the method allowed us to design a prototype which operates beyond the target of speed and power. The results given by the model are compared with the measurements of the prototype.
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subjects Analytical model
Analytical models
ball bearing
Design optimization
Electromagnetic fields
Electromagnetic modeling
inertia
Magnetic field measurement
optimization
Permanent magnet motors
permanent-magnet (PM) machine
Prototypes
retaining sleeve
Rotors
slotless machine
Stress
synchronous machine
Torque measurement
torque measurement methods
very-high-speed (VHS) motor
title Very-High-Speed Slotless Permanent-Magnet Motors: Analytical Modeling, Optimization, Design, and Torque Measurement Methods
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