Publication

Alternative, Magnetically-Levitated Motor Topologies for High Speed

2020
Student Projects

Abstract

A slotless magnetically-levitated high speed motor had been designed and build prior to the beginning of this project. This report presents the work done to develop a slotted alternative design to this motor. In this study, the principle of magnetically-levitated motors for high speed application is presented. Pros and cons of main topologies are highlighted. An optimisation procedure of geometric parameters for slotted stator with a given rotor is developed and explained. The optimization is run for the rotor of the existing prototype. The results are presented and the production of the optimized stator is explained. Finally, an analysis for sensor placement to acquire rotor state is made. A PCB is adapted to fit the produced stator.

Official source

https://infoscience.epfl.ch/entities/publication/a579204a-17d2-48c0-a60b-6ba67aba7ac5

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2020
Student Projects

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/a579204a-17d2-48c0-a60b-6ba67aba7ac5

About this result

Related concepts (24)

Electric motor

An electric motor is an electrical machine that converts electrical energy into mechanical energy. Most electric motors operate through the interaction between the motor's magnetic field and electric current in a wire winding to generate force in the form of torque applied on the motor's shaft. An electric generator is mechanically identical to an electric motor, but operates with a reversed flow of power, converting mechanical energy into electrical energy.

Induction motor

An induction motor or asynchronous motor is an AC electric motor in which the electric current in the rotor needed to produce torque is obtained by electromagnetic induction from the magnetic field of the stator winding. An induction motor can therefore be made without electrical connections to the rotor. An induction motor's rotor can be either wound type or squirrel-cage type. Three-phase squirrel-cage induction motors are widely used as industrial drives because they are self-starting, reliable, and economical.

AC motor

An AC motor is an electric motor driven by an alternating current (AC). The AC motor commonly consists of two basic parts, an outside stator having coils supplied with alternating current to produce a rotating magnetic field, and an inside rotor attached to the output shaft producing a second rotating magnetic field. The rotor magnetic field may be produced by permanent magnets, reluctance saliency, or DC or AC electrical windings.

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Alternative, Magnetically-Levitated Motor Topologies for High Speed

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