Abstract
An investigation into the effect of non-sinusoidal inductance variation on sensorless position detection in interior permanent magnet machines is presented. A rotor position method, based on determining the major axis of an ellipse defined by the motor current, is modified to provide position information over one cycle. The effect of non-sinusoidal inductance variation, caused by stator slotting, is demonstrated and it is shown that the accuracy of the elliptical technique can be significantly reduced as a result. A compensation scheme to improve accuracy is proposed.
| Translated title of the contribution | Effects of nonsinusoidal inductance variation on saliency based position detection techniques in interior permanent magnet synchronous machines |
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| Original language | English |
| Title of host publication | 2nd IEE International Conference on Power Electronics, Machines and Drives, PEMD 2004, University of Edinburgh, 31 March - 2 April |
| Publisher | Institution of Engineering and Technology (IET) |
| Pages | 308 - 313 |
| Number of pages | 6 |
| Volume | 1 |
| ISBN (Print) | 0863413838 |
| Publication status | Published - Mar 2004 |