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| Content Provider | IET Digital Library |
|---|---|
| Author | Taravat, Sajad Kiyoumarsi, Arash Bracikowski, Nicolas |
| Abstract | The objective of this article is to study how the stator step skewing method can lead to the reduction of the cogging torque of a transverse-flux permanent-magnet (TFPM) machine with flux concentrators. Three structures are analysed and compared in terms of their influence of the skewed displacement on the cogging torque using the three-dimensional finite element method (3D-FEM). Thereafter, to validate the FEM results, cogging torque is calculated by applying a Schwarz–Christoffel (SC) conformal mapping. To apply this transformation, the 3D TFPM generator structure with axially magnetised permanent magnets (PMs) is converted into a 2D structure with radially magnetised PMs and the cogging torque of the machine is predicted using both the analytical method and 3D-FEM. The accuracy of the approach is demonstrated by the adequate agreement between the results obtained through this SC mapping and those of the 3D-FEM. In addition, two 100 W prototyped TFPM machines are designed, simulated, manufactured and tested to validate the effects of the step-skewed stator yoke on the predicted cogging torque and back-EMF. |
| Starting Page | 2378 |
| Ending Page | 2388 |
| Page Count | 11 |
| ISSN | 17518660 |
| Volume Number | 14 |
| e-ISSN | 17518679 |
| Issue Number | Issue 12, Dec (2020) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-epa/14/12 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-epa.2020.0029 |
| Journal | IET Electric Power Applications |
| Publisher Date | 2020-08-12 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | 2D Structure 3D TFPM Generator Structure A.C. Machine Axially Magnetised Permanent Magnets Back-EMF Cogging Torque Mitigation Cogging Torque Reduction Conformal Mapping D.C. Machines Electric Potential Finite Element Analysis Flux Concentrators Magnetic Flux Permanent Magnet Machine Power 100 W Predicted Cogging Torque Radially Magnetised PM Schwarz–Christoffel Conformal Mapping Stator Pole Stator Step Skewing Method Stators Step-skewed Stator Yoke TFPM Machine Three-dimensional Finite Element Method Transverse-flux Permanent-magnet Machine |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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