Abstract
At low or zero speed, sensorless control of interior permanent magnet synchronous machines (IPMSM) can be achieved using the difference between d-and q-axis inductances based on high frequency voltage injection. The d-and q-axis inductances are changed caused by the stator currents variation, and then the accuracy of the rotor position estimation is affected by the changing inductances. A rotor position estimation method based on PWM carrier frequency component was presented. Taking the 12-slot-10-pole IPMSM prototype as an example, the influence of the saturation saliency and cross coupling saliency on inductance parameters and the position estimation were investigated. The IPMSM model was established considering magnetic saturation and cross coupling saliency, and then the system simulation model and experimental platform were built. The simulation and experimental results prove the correctness of the theoretical analysis.
| Original language | English |
|---|---|
| Pages (from-to) | 60-64+71 |
| Journal | Dianji yu Kongzhi Xuebao/Electric Machines and Control |
| Volume | 18 |
| Issue number | 7 |
| State | Published - Jul 2014 |
| Externally published | Yes |
Keywords
- Cross-coupling saliency
- Inductance parameters
- Interior permanent magnet synchronous motors
- Rotor position estimation
- Saturation saliency
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