SYNCHRO-SYM Technologies


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Energy Future!


SYNCHRO-SYM implements a patented integrated electric machine circuit and control architecture that goes far beyond the century old componentized electric machine circuit and control architecture of all other electric propulsion solutions, such as the likes of MAGNAX, YASA, Emrax, and Infinitum Electric, by eliminating the "passive" rotor assembly of rare earth permanent magnets (RE-PM), slip-induction windings, reluctance saliencies, or DC field winding and instead, introducing a rotor assembly that "actively" contributes to the electromechanical energy conversion and power production process (in addition with the "active" stator winding assembly).


When retrofitted with the patented integrated electric motor circuit and control architecture of SYNCHRO-SYM (as only provided by BRTEC), the power density of the retrofitted MAGNAX highly optimized electric propulsion motor is doubled, its cost is halved, and its efficiency is increased by simply removing the arrangement of very expensive (and “passive”) rare earth permanent magnets (RE-PM) on the two rotor disk assemblies of MAGNAX and then replacing the arrangements with a similarly rated “active” multiphase winding set (as the original MAGNAX concentrated stator active winding set) and of course brushlessly controlling the two active winding sets with SYNCHRO-SYM's brushless real time emulation controller (BRTEC) instead of the MAGNAX electronic controller.


IMPORTANT RESULTS: The SYNCHRO-SYM retrofit comprises another directly and contactlessly excited "active" multiphase winding set on the rotor assembly, which is equally rated to the single stator "active" multiphase winding set of the original MAGNAX, or two active winding sets providing twice the rated power within the same footprint as the original MAGNAX (i.e., twice the power density but without the wasted real estate array of expensive and delicate rotor RE-PMs). The SYNCHRO-SYM retrofit also conveniently provides coveted "field weakening" for extended speed and efficiency range.


NOTE: By retrofitting with the same design, the same packaging, the same materials, and the same winding techniques as the original MAGNAX (while eliminating the real estate of the extremely expensive and delicate RE-PM and the electronic control of MAGNAX), the performance comparison between the original MAGNAX and SYNCHRO-SYM is obvious and without possibility of manipulation by unsuspectingly comparing between different performance enabling packaging, materials, design techniques, or specifications. Also, retrofitting MAGNAX: 1) conveniently shows SYNCHRO-SYM operation, design, construction, and manufacture are straight forward ready (as is MAGNAX), 2) conveniently shows SYNCHRO-SYM uses off-the-shelf components without exotic components or materials, such as rare earth permanent magnets, and 3) conveniently shows SYNCHRO-SYM is adaptable to legacy, off-the-shelf, fielded, or future electric machine systems with customary engineering and manufacturing. Effectively, any third party legacy or future electric machine design becomes the reference design for SYNCHRO-SYM.


NOTE: Since power density, cost, efficiency are always calculated as per unit of power rating, the dual "active" winding sets of SYNCHRO-SYM provide twice the power output (within the same package footprint as the original MAGNAX), which reasonably calculates to twice the power density per power rating, half the cost per power rating, and at least the same electrical loss (or half the electrical loss per power rating of an induction electric machine system with equal winding MMF on the rotor and stator assemblies).


NOTE:  In contrast to the asymmetric transformer circuit topologies, such as provided by MAGNAX, where physics shows air-gap flux density vectorially increases to core saturation with increasing torque MMF, the physics of a truly symmetric (or dual ported) transformer circuit topology (as only provided by SYNCHRO-SYM) shows air-gap flux density remains constant with increasing torque MMF (beyond magnetizing MMF) and as a result, SYNCHRO-SYM provides 2-4x the peak torque potential of MAGNAX, which most definitely provides a magnetic gear (or transmission-less) propulsion system that MAGNAX (and all others) can only suggests.


NOTE: 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 same rotor and stator footprint, respectively, the resulting electric machine, now called SYNCHRO-SYM, contiguously and variably operates with the same "rated torque" from sub-synchronous speed, such as from and including zero speed, to super-synchronous speed, such as at or above twice synchronous speed, for twice the "constant torque speed range" with a given frequency and voltage of excitation as the original MAGNAX, which unquestionably equates to twice the power density, half the cost, and higher efficiency as the original MAGNAX. Therefore, within the same physical footprint and with the same "continuous rated" torque and voltage,  an electric machine, such as MAGNAX, with a conventional two pole componentized circuit and control architecture would have a constant torque speed range of 3600 RPM with 60 Hz of excitation (as an example) but a two pole integrated circuit and control architecture of SYNCHRO-SYM would have a constant torque speed range of 7200 RPM at 60 Hz of excitation, which is universally recognized as a characteristic for twice the power and power density.

There are other engineering requirements for a practical SYNCHRO-SYM retrofit of the axial-flux electric machine, such as MAGNAX.



The same retrofit process used for MAGNAX can be similarly applied to virtually any other electric machine system, such as Yasa Motors, EMRAX, Mclaren Racing, Rimac's Electric Motor Systems, BorgWarner, and EM-motive; but unlike  MAGNAX (and all others), BEM also provides a complementary suite of vertically integrated electric vehicle technologies to bring the electric vehicle and the smart electricity infrastructure beyond today's reality, such as SYNCHRO-SYM, MOTORPRINTER, BMSCC, and BM-HFMDB


Other future realistic goals of BEM's complementary suite of vertically integrated technologies, called SYNCHRO-SYM Technologies:


o Democratize the automobile industry by leveraging SYNCHRO-SYM Technologies in a Universal Electric Vehicle Powertrain Chassis Module (BEM-UPM).

     ...(READ MORE)


o Dramatically reduce overall electrical energy consumption by leveraging SYNCHRO-SYM Technologies under Smart Enterprise Management (SEM).

      ...(READ MORE)



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