Abstract
A research method for inductance parameters was proposed based on a steady-state operation for high torque permanent magnet in-wheel motors. In order to improve calculation accuracy of the inductance under steady-state conditions, a mathematical model for inductance parameters considering iron losses was presented. The sensitivity analysis for inductances model showed that with this method, higher accuracy could be achieved under higher currents; and bigger errors could be generated under lower currents due to the inductance sensitivity to parameter disturbance. The inductances were analyzed by finite element method for a permanent magnet in-wheel motor with 12 slots and 10 poles, and the inductances of a prototype motor were investigated under steady-state conditions. The results of sensitivity comparisons under different load operation points accorded with the theoretical analysis. The experimental results were in agreement with the calculated results for inductance and the accuracy of the inductance model and the feasibility of the approach were also verified with experiment results.
| Original language | English |
|---|---|
| Pages (from-to) | 61-66 |
| Number of pages | 6 |
| Journal | Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering |
| Volume | 30 |
| Issue number | 21 |
| State | Published - 25 Jul 2010 |
| Externally published | Yes |
Keywords
- Experiment
- Finite element method
- High torque
- Steady-state
- q-axis and d-axis inductances
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