Fig. 7

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(a) Outer rotor SPM motor with Halbach Ring, magnet is highlighted in orange color; (b) 3D flux hybrid motor with modular stator, magnets are placed in rotor between gear-shape iron plates; (c) magnet assisted claw pole motor (rotor), magnets are highlighted in green color; (d) IPMSM with direct magnet injection molding, magnets are “boomerang” shape.
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