Publication

Passive, Active and Loss Tradeoffs in High-Speed Bearingless Motors

Yves Perriard, Douglas Martins Araujo
2018
Conference Papers

Résumé

Material costs and novel applications have directed research interests towards miniaturized, faster rotatory electric drives. The challenges of miniaturization have made magnetic bearings more attractive, which are naturally suited for high speeds and virtually need zero maintenance. In this domain, slice motors are studied, given their stabilizing passive characteristics that simplify control schemes. Two bearingless slice motors are studied, and their passive stability, active properties along motor losses are assessed. A sensitivity analysis is conducted and an optimization example is presented.

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https://infoscience.epfl.ch/entities/publication/e34c7653-ecb6-4544-b84d-b7c7f37fd3a7

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Yves Perriard, Douglas Martins Araujo
2018
Conference Papers

Résumé

Source officielle

https://infoscience.epfl.ch/entities/publication/e34c7653-ecb6-4544-b84d-b7c7f37fd3a7

À propos de ce résultat

Concepts associés (23)

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.

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.

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Publications associées (31)

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Passive, Active and Loss Tradeoffs in High-Speed Bearingless Motors

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