Print Email Facebook Twitter General Analytical Modeling for Magnet Demagnetization in Surface Mounted Permanent Magnet Machines Title General Analytical Modeling for Magnet Demagnetization in Surface Mounted Permanent Magnet Machines Author Guo, Baocheng (Southeast University) Huang, Yunkai (Southeast University) Peng, Fei (Southeast University) Dong, J. (TU Delft DC systems, Energy conversion & Storage) Date 2019 Abstract This paper proposes an analytical model for the prediction of airgap magnetic field distribution for axial flux permanent magnet (AFPM) machine with partial magnet demagnetization. The AFPM machine geometry is first converted to a polar representation. Consequently, the subdomain model based on current sheet technique is developed. Then current sheet representation of PM is derived to consider the partial demagnetization using superposition principle. The back electromagnetic forces and cogging torque are obtained accordingly based on Maxwell's equations. The results show that the results of proposed approach agrees with that of finite-element method. The model is further validated by experiments under both healthy and demagnetized conditions, which can validate the proposed approach. Main contribution of the work is to consider the partial irreversible demagnetization. Moreover, the proposed method is applicable for both AFPM and radial flux permanent magnet machine. Subject Axial flux permanent magnet (AFPM) machinecurrent sheet modeldemagnetizationmagnetic field To reference this document use: http://resolver.tudelft.nl/uuid:5a1c795a-790f-4242-9d73-2c6978ed5335 DOI https://doi.org/10.1109/TIE.2018.2873099 Embargo date 2020-03-01 ISSN 0278-0046 Source IEEE Transactions on Industrial Electronics, 66 (8), 5830-5838 Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2019 Baocheng Guo, Yunkai Huang, Fei Peng, J. Dong Files PDF General_Analytical_Modeli ... chines.pdf 4.29 MB Close viewer /islandora/object/uuid:5a1c795a-790f-4242-9d73-2c6978ed5335/datastream/OBJ/view