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This patented motor architecture has inherent advantages in RWA and flywheel applications: an efficient ironless core, zero cogging stator, high torque capacity, dynamic responsiveness, and overall weight savings.
The “air core” architecture lends itself to very low drag at high operating speeds and cogless torque. The wave-wound design of the stator produces a sinusoidal Back-EMF with total harmonic distortion of less than 1%. The precision hand wound coil results in a phase-to-phase balance within 1 degree. In combination, these produce the highest precision RWA motors available which yields essentially pure torque vector control with very low losses and zero cogging.
The new TGR’s design puts all the magnetics (the heaviest part of the motor) in the rotor, maximizing the inertia for a given weight and size. The resulting package is lighter weight for the same momentum storage capacity, and because of no iron saturation in the stator, the TGR series peak torque capacity is much higher than a similar weight motor. This gives a high dynamic response significantly better than the competition at a lighter weight. The motors are also highly efficient (up to 95%) since the architecture lends itself to very low drag at high operating speeds.
The TGR 29-12’s offers a continuous torque of 0.012 N-m and 0.0054 N-m/√W motor constant. The TGR 45-20 offers a continuous torque of 0.075 N-m and 0.0197 N-m/√W motor constant. This allows the new TGR motor kits to offer more than double the torque of the closest competitor with minimal losses.
Contact us today to talk to an experienced MACCON engineer!