Randomized trial compares segmented and un-segmented stator constructions in permanent magnet motors, indicating improved performance with segmentation.
Key Points
The research aims to design and prototype a modular permanent magnet synchronous motor for performance comparison between segmented and un-segmented stators.
Developed a permanent magnet synchronous motor with both segmented and un-segmented stator designs under identical conditions.
Produced twelve laminated segments with V-shaped interfaces and 3D printed caps to facilitate winding on an open-slot geometry.
Conducted winding trials to assess conductor placement and end turn tightness.
The un-segmented stator achieved a slot fill factor of 30.8%, while the segmented stator achieved 35.1%.
The use of 1.6 mm conductors improved winding access and placement efficiency in the segmented design.
Observations from the design and build stages provide valuable insights for future prototypes.