Abstract
A PM BLDCM is one of the most important components in a high-altitude electric propulsion system. Its performance is closely related to temperature rise, so the analysis of its temperature field in the high-altitude enviroment is particularly important because of the poor heat dissipation there. We study a surface-mounted PM BLDCM, model and calculate its temperature field in the high-altitude enviroment with the finite element method and determine its heat transfer coefficients. The simulation results in the ground enviroment, given in Figs. 2, 3 and 4, and their comparison with the experimental data show preliminarily that the temperature rise and heat dissipation in the PM BLDCM used in the high-altitude electric propulsion system should be studied and taken into account when designing the PM BLDCM.
| Original language | English |
|---|---|
| Pages (from-to) | 423-428 |
| Number of pages | 6 |
| Journal | Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University |
| Volume | 32 |
| Issue number | 3 |
| State | Published - Jun 2014 |
Keywords
- Boltzmann equation
- Boundary conditions
- Brushless DC motors
- Electric propulsion
- Finite element method
- Heat dis-sipation
- Heat transfer coefficients
- High-altitude environment
- Mathematical models
- Motors
- Temperature distribution