Abstract
Accurate measurements of magnetic properties of soft magnetic composite (SMC) material are performed on an improved 3-D tester by means of novel precision B - H sensing coils attached to the surface of a cubic SMC specimen. By controlling the adjustable excitation topologies, magnetic properties over wide excitation frequency range from 2 Hz to 1000 Hz are acquired and analyzed. In this paper, the relationship between the magnetic flux density vector B and magnetic field strength vector H has been systematically measured under alternating and 3-D conditions, and the core loss features have been analyzed. Compared with the conventional magnetic properties only at 50 Hz, wide-range-frequency magnetic properties contribute to extending application area of the new SMC electrical machines.
| Original language | English |
|---|---|
| Article number | 6075250 |
| Pages (from-to) | 88-97 |
| Number of pages | 10 |
| Journal | IEEE Transactions on Industry Applications |
| Volume | 48 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 2012 |
| Externally published | Yes |
Keywords
- Anisotropy
- flexible excitation coil
- improved 3-D magnetic testing system
- rotational magnetization
- sensing coil
- soft magnetic composite (SMC)
- wide-range frequency
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