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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | VuXuan, H. Lahaye, D. Polinder, H. Ferreira, J.A. |
| Copyright Year | 2011 |
| Description | Author affiliation: Electrical Power Processing, Delft University of Technology, Mekelweg 4, 2628 CD, The Netherlands (VuXuan, H.; Polinder, H.; Ferreira, J.A.) || Delft Institute of Applied Mathematics, Delft University of Technology, Mekelweg 4, 2628 CD, The Netherlands (Lahaye, D.) |
| Abstract | In literature, many different expressions for Carter factor can be found leading to confusion. This paper evaluates Carter factor expressions by comparing finite element computations in order to find the most suitable one which can be used in the design of permanent magnet machines. This paper shows limitations of conventional literature of slotting effect in the range of small slot opening. Finite element analysis based results show that calculation of magnetic saturation correction factor based on tooth flux density brings up results more accurate than that based on air gap flux density. The analytical model is improved by incorporating static FEM. This leads to hybrid model. Correction factors for slot opening, fringing and magnetic saturation are calculated online by static FEM model. In order to implement this concept, a static FEM program was developed. The program is able to make geometry model and handle boundary conditions automatically. To speed up the refinement of design results, a nonlinear transient finite solver based on scripts was also developed. Our implementation ensures that design parameters can be changed easily. Nonlinear finite element computations and experiments are compared. They are in very good agreement, with an error in the internal voltage of only 1.5%. Comparison of the analytical models, the proposed model and transient FEM model shows that the proposed model is more accurate in predicting permanent magnet machine behavior than conventional analytical model. |
| Starting Page | 948 |
| Ending Page | 954 |
| File Size | 763213 |
| Page Count | 7 |
| File Format | |
| ISBN | 9781457700606 |
| e-ISBN | 9781457700613 |
| DOI | 10.1109/IEMDC.2011.5994943 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2011-05-15 |
| Publisher Place | Canada |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Finite element methods Analytical models Saturation magnetization Magnetic flux Mathematical model Equations Atmospheric modeling hybrid model Carter factor slot opening permanent magnet machine concentrated windings FEM |
| Content Type | Text |
| Resource Type | Article |
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