Abstract
The designs of long-stator permanent magnet (PM) linear motor are widely adopted modular segments to simplify system and reduce energy losses. This paper investigates cross-coupling inductances for multi-segments PM linear motor with concentrated windings. Considering large phase inductances, an improved experimental method based on sine-wave voltage source are proposed to analyze the cross-coupling inductances based on current excitations. And then asymmetrical phase characteristics of stator segments with different boundary conditions are evaluated quantitatively. The relationships between asymmetrical phase inductances and cross-coupling inductances are derived. The results indicate that peak-peak value of cross-coupling inductance waveform in the middle stator segments is smaller than that in the first and terminal ones.
| Original language | English |
|---|---|
| Article number | 7116596 |
| Journal | IEEE Transactions on Magnetics |
| Volume | 51 |
| Issue number | 11 |
| DOIs | |
| State | Published - 1 Nov 2015 |
| Externally published | Yes |
Keywords
- Linear motor
- asymmetrical phase characteristics
- cross-coupling inductances
- stator segments
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