Choice of polarization
1. Polarization coordinate system
Two coordinate systems are available:
A “ Global ” polarization coordinate system: The origin is positioned at the rotor center.
A “ Local ” polarization coordinate system which is specific to each considered magnet topology.
Note: The reference axis (X-axis for Cartesian coordinate system) has a red color.
2. Polarization orientation
Five strategies of polarization are proposed:
- Direction
- Radial +, Radial –
- Orthoradial +, Orthoradial –
3. Polarization orientation illustrations
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1 | Global coordinate system. The origin is positioned at the rotor center.The reference axis is the X-axis. Its color is red. |
| 2 | Local coordinate system. Its location is defined for each magnet
topology. See “Part Factory” application for more information. The reference axis is the X-axis. Its color is red. |
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| 3 | Borders of part sector in which magnet topology is defined. | |
| 4 | Magnet in which a point P is considered to illustrate the polarization orientation. | |
| 5 | Polarization of the magnet considered at any point P. | |
| Legend of pictures to illustrate the magnet polarization orientation | ||
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| Polarization / Radial + Global coordinate system | Polarization / Radial – Global coordinate system |
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| Polarization / Orthoradial + Global coordinate system | Polarization / Orthoradial – Global coordinate system |
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| Polarization / Radial + Local coordinate system | Polarization / Direction + Angle Local coordinate system |