Comparative Analysis of Mechanical Characteristics of Different Rotor Structures of High-Speed Permanent Magnet Synchronous Motor for Hydrogen Recirculation Pumps

2022 IEEE 20th Biennial Conference on Electromagnetic Field Computation-Long papers (CEFC-LONG) Pub Date : 2022-10-01 DOI:10.1109/CEFC-LONG57069.2022.10107524

Ye Liu, Kang Ma, Zhuoran Zhang, Ziqiang Wei

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Abstract

In this paper, a high-speed permanent magnet synchronous motor (PMSM) is designed and manufactured for hydrogen recirculation pumps (HRPs). The motor rotor is exposed to a high-pressure mixture of steam and hydrogen, which makes hydrogen embrittlement occur in permanent magnets (PMs). A protective coating process is necessary for the PMs in high-pressure hydrogen. However, in the process of sleeve interference installation, the protective coating of the PMs is easily damaged. This paper aims at the high-strength rotor optimization of high-speed PMSM for HRPs in terms of electromagnetic and mechanical performance. A new sleeve structure is proposed to strengthen the motor rotor considering the manufacturing process. The electromagnetic performance is optimized by adjusting the ratio of PMs with different magnetization directions with the different sleeve structures. A 25000r/min, 800W prototype has been manufactured and the effectiveness of analysis methods has been validated by the experimental results.

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氢再循环泵用高速永磁同步电机不同转子结构的力学特性比较分析

本文设计并制造了一种用于氢气再循环泵的高速永磁同步电动机。电机转子暴露在高压蒸汽和氢气混合物中，使永磁体(pm)发生氢脆。高压氢气环境下的粉末冶金必须进行防护涂层处理。然而，在套筒干涉安装过程中，pm的保护涂层容易损坏。本文旨在从电磁性能和力学性能两方面对高速永磁同步电机的高强度转子进行优化。考虑到电机转子的制造工艺，提出了一种新的套筒结构。通过调整不同磁化方向的永磁元件在不同套筒结构下的比例，优化了电磁性能。制作了一台25000r/min、800W的样机，实验结果验证了分析方法的有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2022 IEEE 20th Biennial Conference on Electromagnetic Field Computation-Long papers (CEFC-LONG)

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