Abstract
Initial position and magnet polarity estimation is required for smooth start-up of permanent magnet synchronous machines. The signal-to-noise ratio of the salient signals used for initial position and magnet polarity estimation depends on the machine design and affects the overall performance of the estimation technique. This paper investigates the design of a ring-magnet, surface permanent magnet synchronous machine to maximize the signal-to-noise ratio of the position and polarity signals without compromising the machine performance. Since the rotor geometry is fixed given the ring-magnet, the effect of the stator tooth tip geometry on the saliency signals is evaluated using finite element analysis. By adding a bridge between the stator teeth, the magnitude of the polarity-based signal can be increased significantly. A coupled simulation verifies the implementation of the improved initial position and magnet polarity estimation based on modified machine design.
| Original language | English |
|---|---|
| Title of host publication | Conference Record - IAS Annual Meeting (IEEE Industry Applications Society) |
| Pages | 2393-2398 |
| Number of pages | 6 |
| DOIs | |
| Publication status | Published - 2007 |
| Externally published | Yes |
| Event | 2007 IEEE Industry Applications Conference 42nd Annual Meeting, IAS - New Orleans, LA Duration: 2007 Sep 23 → 2007 Sep 27 |
Other
| Other | 2007 IEEE Industry Applications Conference 42nd Annual Meeting, IAS |
|---|---|
| City | New Orleans, LA |
| Period | 07/9/23 → 07/9/27 |
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Keywords
- Initial position estimation
- Machine design
- Polarity signals
- Self-sensing
- Sensorless
- Signal injection
- SPMSM
ASJC Scopus subject areas
- Electrical and Electronic Engineering
Cite this
SPMSM design considerations for initial position and magnet polarity estimation using carrier signal injection. / Akatsu, Kan; Harke, Michael C.; Lorenz, Robert D.
Conference Record - IAS Annual Meeting (IEEE Industry Applications Society). 2007. p. 2393-2398 4348110.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - SPMSM design considerations for initial position and magnet polarity estimation using carrier signal injection
AU - Akatsu, Kan
AU - Harke, Michael C.
AU - Lorenz, Robert D.
PY - 2007
Y1 - 2007
N2 - Initial position and magnet polarity estimation is required for smooth start-up of permanent magnet synchronous machines. The signal-to-noise ratio of the salient signals used for initial position and magnet polarity estimation depends on the machine design and affects the overall performance of the estimation technique. This paper investigates the design of a ring-magnet, surface permanent magnet synchronous machine to maximize the signal-to-noise ratio of the position and polarity signals without compromising the machine performance. Since the rotor geometry is fixed given the ring-magnet, the effect of the stator tooth tip geometry on the saliency signals is evaluated using finite element analysis. By adding a bridge between the stator teeth, the magnitude of the polarity-based signal can be increased significantly. A coupled simulation verifies the implementation of the improved initial position and magnet polarity estimation based on modified machine design.
AB - Initial position and magnet polarity estimation is required for smooth start-up of permanent magnet synchronous machines. The signal-to-noise ratio of the salient signals used for initial position and magnet polarity estimation depends on the machine design and affects the overall performance of the estimation technique. This paper investigates the design of a ring-magnet, surface permanent magnet synchronous machine to maximize the signal-to-noise ratio of the position and polarity signals without compromising the machine performance. Since the rotor geometry is fixed given the ring-magnet, the effect of the stator tooth tip geometry on the saliency signals is evaluated using finite element analysis. By adding a bridge between the stator teeth, the magnitude of the polarity-based signal can be increased significantly. A coupled simulation verifies the implementation of the improved initial position and magnet polarity estimation based on modified machine design.
KW - Initial position estimation
KW - Machine design
KW - Polarity signals
KW - Self-sensing
KW - Sensorless
KW - Signal injection
KW - SPMSM
UR - http://www.scopus.com/inward/record.url?scp=47849108215&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=47849108215&partnerID=8YFLogxK
U2 - 10.1109/IAS.2007.361
DO - 10.1109/IAS.2007.361
M3 - Conference contribution
AN - SCOPUS:47849108215
SN - 1424403642
SN - 9781424403646
SP - 2393
EP - 2398
BT - Conference Record - IAS Annual Meeting (IEEE Industry Applications Society)
ER -