Magnax, a startup from Ghent that developed an axial flux motor, rolls from the original focus on wind energy, in which the motor becomes a generator, now resolutely toward mobility applications.
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Since 2000, we have witnessed an evolution in the direction of motors and generators fitted with permanent magnets in the rotor (usually referred to as Permanent Magnet Synchronous Machines PMSM). In any motor, interaction of the magnetic fields of the rotor and the stator create the rotational force that drives the machine.

Article originally posted on 

https://www.designnews.com/content/new-generation-axial-flux-ev-motors/186519862158706

Technology startups such as Magnax claim that electric motors and generators based on axial flux technology will be a step change in efficiency, size, reliability and cost-effectiveness versus the current generation of direct drive machines (based on Radial Flux).

Magnax recently finished the first production prototype of the axial flux direct-drive machine which will be used in the new generation of wind turbines.

Until now, manufacturers of wind turbines and electric machines always had to find a balance between using generators with gearbox (meaning lower weight, but also lower reliability) and direct-drive systems (higher reliability and efficiency, but higher weight).

A new generation of low-weight and highly efficient direct drive motors and generators are on the horizon and they combine the best of both worlds. This new generation of electric machines is based on recent innovations in Axial Flux Technology.