| Titre : | Reducing harmonic eddy-current losses in the stator teeth of interior permanent magnet synchronous machines during flux weakening (2010) |
| Auteurs : | Seok-Hee Han, Auteur ; Soong, W.L., Auteur ; Jahns, Thomas M., Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | IEEE transactions on energy conversion (Vol. 25 N° 2, Juin 2010) |
| Article en page(s) : | pp. 441 - 449 |
| Note générale : | energy conversion |
| Langues : | Anglais |
| Tags : | eddy current losses ; finite element analysis ; harmonics suppression ; machine theory ; permanent magnet machines ; synchronous machines |
| Résumé : | Interior permanent magnet (IPM) synchronous machines can experience large harmonic eddy-current losses in the stator teeth under flux-weakening operation, significantly depressing the efficiency of these machines at high operating speeds. This paper presents a new analytical/finite-element hybrid design approach to reduce the harmonic eddy-current losses in IPM machine stator teeth during flux-weakening operation. The proposed technique achieves this objective by three steps: 1) developing an analytical index for the harmonic eddy-current losses in IPM machine stator teeth; 2) designing the spatial distribution of the rotor MMF to minimize the analytical index; and 3) synthesizing the rotor geometry to implement the desired rotor MMF function while maintaining the basic machine characteristics unchanged. It will be shown that two-layer rotors, if properly optimized, are significantly more effective than one-layer rotors for the purpose of reducing the harmonic eddy-current losses in IPM machine stator teeth during flux-weakening operation at high speeds. |
| En ligne : | http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5467352&sortType%3Dasc_p_Sequence%26filter%3DAND%28p_IS_Number%3A5467345%29 |
