Fiche individuelle
Zhenxin LI | ![]() | |
Titre | Doctorant | |
Equipe | Outils et Méthodes Numériques | |
Téléphone | +33 (0)3-XX-XX-XX-XX | |
zhenxin.li.edu@univ-lille.fr | ||
Observation / Thématique de recherche | Multi-Physical Modelling of the Grain Oriented Electrical Steels for their Implementation in Electromagnetic Computation Codes | |
Publications |
ACLI Revue internationale avec comité de lecture |
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[1] Optimal selection of angular input data for the ODF based model applied to B-H magnetization curves of Grain-Oriented Electrical Steels IEEE Transactions on Magnetics, 11/2023, URL, Abstract LI Zhenxin, TANG Zuqi, MESSAL Oualid, BENABOU Abdelkader, WANG Shuhong |
Grain-Oriented Electrical Steels (GOES) are widely used in transformers to increase energy efficiency while reducing the volume and weight of such transformers. These GOES are characterized by their strong anisotropy, which leads to different magnetic properties (behavior law and iron losses) depending on the strength and the direction of the applied magnetic field to the rolling direction (RD). To describe the anisotropy of the GOES behavior law, the Orientation Distribution Function (ODF) based approach shows interesting features regarding ease of identification and implementation. However, a significant oscillation issue in this model at low magnetic field exits. It is recently reported that a high-order ODF based method can improve the accuracy of the original model. But the high-order ODF based model implies an important number of experimental data according to different directions of the applied field to RD (different magnetization angles) to build a model with sufficient accuracy. In addition, the accuracy also depends on how the input magnetization angles are selected between the RD and the transverse direction (TD). In this article, an optimal algorithm for input magnetization angle selection is proposed for the high-order ODF based method. To validate the proposed algorithm, 13 magnetization angles have been measured. A comparative study has been conducted based on the original and the high-order ODF based models built with the proposed selected magnetization angles. It is shown that the proposed algorithm can reduce the number of experimental data needed for the ODF based model while providing an acceptable global error. |
ACT Conférence internationale avec acte |
[1] Improved ODF approach to model magnetic properties of Grain Oriented Electrical Steels taking into account mechanical stress 26th Soft Magnetic Materials Conference, Prague, Czech Republic, 09/2023 LI Zhenxin, TANG Zuqi, MESSAL Oualid, BENABOU Abdelkader, WANG Shuhong |
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