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Research on influencing factors of magnetic property test of permanent magnetic ring

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Abstract

This paper explores the influencing factors of magnetic property test of permanent magnetic ring. Firstly, the finite element simulation method is used to analyze the influence of the size and material of center core and back iron on the magnetic property test results of permanent magnet ring. The results show that the size of center core and back iron has a great influence on the test results, and the material (soft magnetic material) has little influence on the test results. Then, center cores and back irons of different materials and sizes are processed for experiments, and the experimental results are consistent with the simulation results. Finally, the formula for critical size of back iron is deduced. This paper has certain reference significance for the selection of permanent magnet ring in motor and the standardization of magnetic property test of permanent magnet ring.

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Acknowledgements

This work was supported by the Beijing Youth Top-notch Team Support Project of China (Grant No. 2018000021223TD10), the Hebei Province Fund for Transformation of Major Science and Technology Achievements of China (Grant No. 19041029Z), the Hebei Province International Science and Technology Cooperation Base Construction Project of China (Grant No. 20591002D).

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Authors and Affiliations

  1. National Engineering Research Center for Rare Earth, GRINM Group Co., Ltd., Beijing, 100088, China

    Ze Zhang, Yang Luo, Zilong Wang, Dunbo Yu, Yuanfei Yang, Wenlong Yan, Haijun Peng, Kaiwen Wu & Wenjian Yan

  2. GRIREM Advanced Materials Co., Ltd., Beijing, 100088, China

    Ze Zhang, Yang Luo, Zilong Wang, Dunbo Yu, Yuanfei Yang, Wenlong Yan, Haijun Peng, Kaiwen Wu & Wenjian Yan

  3. General Research Institute for Nonferrous Metals, Beijing, 100088, China

    Ze Zhang, Yang Luo, Dunbo Yu, Wenlong Yan & Haijun Peng

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  1. Ze Zhang
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Correspondence to Dunbo Yu.

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Zhang, Z., Luo, Y., Wang, Z. et al. Research on influencing factors of magnetic property test of permanent magnetic ring. Electr Eng 104, 4071–4080 (2022). https://doi.org/10.1007/s00202-022-01591-8

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