Abstract
Taper permanent magnet motor has a structure different from universal permanent magnet motor. Analysis and calculation of taper permanent magnet motor is special, and the reduced form method would lead to some inaccurate understanding. In this paper the 3D finite element method was adopted to analyze the magnetic field of the taper permanent magnet motor under different structure parameters, and the results indicated that the distribution of magnetic field along axial direction in taper permanent magnet motor is fairly uniform and the air gap field will decrease linearly when the axial displacement of rotor increases. Then the influence of structure parameters such as taper angle, axial displacement of rotor, shape of permanent magnet, on d-axis and q-axis inductances as well as torque was studied. It shows that the d-axis and q-axis inductances have different variation trends with axial displacement of rotor under different permanent magnet shapes, and taper angle affects the variation magnitude of the d-axis and q-axis inductances. Torque will decrease when the axial displacement of rotor increases. The validity of calculation and analysis is verified by experiment results of prototype.
| Original language | English |
|---|---|
| Pages (from-to) | 40-45 |
| Number of pages | 6 |
| Journal | Dianji yu Kongzhi Xuebao/Electric Machines and Control |
| Volume | 16 |
| Issue number | 5 |
| Publication status | Published - May 2012 |
| Externally published | Yes |
Keywords
- 3D finite element method
- Inductances
- Taper angle
- Taper permanent magnet motor
- Torque
ASJC Scopus subject areas
- Control and Systems Engineering
- Energy Engineering and Power Technology
- Computer Science Applications
- Electrical and Electronic Engineering