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25 Permanent Magnet Motor Design.pdf
Permanent Magnet
Synchronous Motor (PMSM)
Design
Part 1 – General Considerations
Permanent Magnet (PM) Motor
Characterized by permanent
magnets on rotor
Known for its simplicity and
low maintenance
No copper loss on rotor
High efficiency
Exploded View of a PM Motor
J. R. Hendershot and T. J. E. Miller, Design of Brushless Permanent Magnet Machines
2nd Edition, p. 44, Motor Design Books LLC, 2010.
Inner Rotor Possibilities (1)
surface radial surface parallel breadloaf ring
magnet magnet magnet magnet
Inner Rotor Possibilities (2)
(e) IPM in Toyota Prius
Toyota Prius Hybrid Electric Vehicle (HEV)
3
1. Four cylinder combustion engine; 2
2. Generator/starter; J. R. Hendershot and T. J. E. Miller,
3. Electric Motor; Design of Brushless Permanent Magnet
4. Power split device (PSD) Machines 2nd Edition, p. 34, Motor
J. F. Gieras, Permanent Magnet Motor Technology - Design Books LLC, 2010.
Design and Applications, 3rd Edition, p. 282, CRC
Press, 2010.
Segmented Magnets in Large PM Rotor
J. R. Hendershot and T. J. E. Miller, Design of Brushless Permanent Magnet Machines
2nd Edition, p. 94 602, Motor Design Books LLC, 2010.
Rotor Skew
stepped magnet
Magnetization Profile
parallel magnetization radial magnetization
most popular
radial sine magnetization sine angle or sine direction
magnetization
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