Transforming Electric Vehicles: The Doubly-Fed SYNCHRO-SYM Motor (Part 1) (Download)
The classic study of electric motor and generator (EM) theory always begins with the cross-sectional view of a smooth air-gap, radial-flux rotating electric machine (i.e., electric motor, generator, or transformer). It has the analytical simplicity of a single-turn, two-phase, distributed winding set symmetrically placed on the rotor and stator, respectively, without altering the size, cost, and loss of the typical EM package footprint.
