Abstract
Two new finite element (FE) methods for improved electromagnetic torque computation are proposed in the paper. The first method uses an analytical filter applied to the Maxwell stress tensor calculation. The second method is based on the virtual work principle and directly provides the separation of torque in its average and pulsating components. The FE computational methods are validated on a brushless PM motor having a rotor with surface mount ferrite arcs. The relative merits of each method are discussed, together with computational issues, such as the influence of the meshing and the convergence of the calculation.
| Original language | English |
|---|---|
| Pages (from-to) | 540-545 |
| Number of pages | 6 |
| Journal | IEE Conference Publication |
| Volume | 2 |
| State | Published - 2004 |
| Event | Second International Conference on Power Electronics, Machines and Drives, PEMD 2004 - Edinburgh, United Kingdom Duration: Mar 31 2004 → Apr 2 2004 |
Keywords
- Cogging torque
- Electromagnetic torque
- Finite element analysis
- Permanent magnet motor
- Torque ripple
ASJC Scopus subject areas
- Electrical and Electronic Engineering