SYNCHROSYM Technologies 


Retrofitted with the patented electric motor circuit and control architecture of SYNCHROSYM, the MAGNAX highly optimized electric propulsion motor power density can be doubled again, the cost halved again, and the efficiency increased again by simply removing the two very expensive (and “passive”) rare earth permanent magnet (REPM) disk assemblies of MAGNAX and then replacing the arrangement of REPMs with a similar concentrated “active” multiphase winding set arrangement (as the original MAGNAX stator active winding set) and brushlessly controlling the active winding set(s) with SYNCHROSYM's brushless real time emulation controller (BRTEC) instead of the MAGNAX electronic controller.
By doubling the power rating of the original MAGNAX package with two similarly rated active winding sets (as the original single MAGNAX stator active winding set) that are on the rotor and stator, respectively, the resulting electric machine, now called SYNCHROSYM, contiguously and variably operates from subsynchronous, such as from and including zero speed, to supersynchronous speed, such as at or above twice synchronous speed, with twice the "constant torque speed range" for a given frequency and voltage of operation as the original MAGNAX, which unquestionably equates to twice the power density, half the cost, and higher efficiency as the original MAGNAX. Since power density, cost, efficiency are always calculated with per unit of power rating, the dual active winding sets of SYNCHROSYM again show twice the power density, half the cost, and higher efficiency with twice the power in the same package as the original MAGNAX. Providing a truly symmetric (or dual ported) transformer circuit topology that naturally keeps airgap flux density constant with increasing torque current (in contrast to MAGNAX asymmetric transformer circuit topology), SYNCHROSYM shows at least twice the peak torque potential of MAGNAX (which most definitely provides a transmissionless propulsion system that MAGNAX can only suggests). The SYNCHROSYM conversion also provides "field weakening" for extended speed range. Although MAGNAX was used for this example, the same retrofit process can be similarly applied to virtually any other electric machine system.
NOTE: There are other engineering requirements for a practical retrofit of the axialflux electric machine, such as MAGNAX...(READ MORE)

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