Influence of Core Saturation on Suspension Force of Bearingless Doubly Salient Electromagnetic Motor
Wei Chen(Nanjing University of Aeronautics and Astronautics), Li Yu(Nanjing University of Aeronautics and Astronautics), Haonan Zou(Nanjing University of Aeronautics and Astronautics), Qiuyu Xu(Nanjing University of Aeronautics and Astronautics), Yuke Shi(Nanjing University of Aeronautics and Astronautics), Xu Chen(Nanjing University of Aeronautics and Astronautics), Guoqing Wang(Nanjing University of Aeronautics and Astronautics), Zhiyi Wen(Nanjing University of Aeronautics and Astronautics), Zhuoran Zhang(Nanjing University of Aeronautics and Astronautics)
Cited by 1
Abstract
Increase of electromagnetic load is an important way for bearingless doubly salient electromagnetic (BDSEM) motor to improve torque density, but this leads to core saturation, resulting in a non-linear gain between the suspension force and current. This paper proposes a new equivalent magnetic circuit model based on the material characteristics of iron core, and reveals the mechanism of the influence of core saturation on BDSEM motor suspension force. Finally, an experimental platform is developed and the analysis results are preliminarily validated.
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