大功率永磁盘式电机转子结构强度研究  

Research on Structural Strength of Rotor of High Power Permanent Magnet Disk Motor

作　　者：黄漪帅 梁志宏 李飞 王海波 苏森 HUANG Yishuai;LIANG Zhihong;LI Fei;WANG Haibo;SU Sen(Ningxia Power Co.,LTD.,National Energy Group,Yinchuan 750011,China;Guizhou Power Co.,LTD.,National Energy Group,Guiyang 550081,China;Guoneng Ningxia Lingwu Power Generation Co.,LTD.,National Energy Group,Lingwu Ningxia 751400,China;Huachi Kinetic Energy Beijing Technology Co.,LTD.,Beijing 101111,China)

机构地区：[1]国家能源集团宁夏电力有限公司,宁夏银川750011 [2]国家能源集团贵州电力有限公司,贵州贵阳550081 [3]国家能源集团国能宁夏灵武发电有限公司,宁夏灵武751400 [4]华驰动能(北京)科技有限公司,北京101111

出　　处：《微电机》2024年第3期14-18,34,共6页Micromotors

基　　金：华电宁夏灵武发电有限公司“基于光火储耦合热电联产系统的煤电机组灵活性提升技术的研究与示范应用”22MW4.5MWh飞轮储能及光火储耦合控制系统项目(Q/GW 3ZD-FDISC06-2021-BY04)。

摘　　要：本研究针对盘式电机转子在高速旋转时受到离心力破坏的问题,设计了一种基于储能飞轮转子结构的盘式电机转子结构。通过对比分析传统盘式电机转子结构强度,提出了利用储能飞轮转子材料高强度的特性来抵消电机盘与磁钢产生的离心力的方法,从而提高了盘式电机转子能够承受的最大转速上限。通过对不同转速下新式盘式电机转子结构的强度分析,得出转速与电机盘和转子的最大应力曲线图。结果表明,新式盘式电机转子结构理论最高转速分别是表贴式结构的4.3倍和内嵌式结构的2.7倍。为了进一步提高新式盘式电机转子结构的性能和可靠性,本文提出了一种新式盘式电机转子结构求解最优过盈量的计算方法。通过对比不同过盈量下静态与额定转速时电机盘与转子的安全系数,求出了过盈量最优值。本研究设计的新式盘式电机转子结构具有较大的实际应用价值,可以为储能飞轮等领域提供一种高性能、高转速的盘式电机转子解决方案。In order to solve the problem that the rotor of disk motor is damaged by centrifugal force when rotating at high speed,a disk motor rotor structure based on the flywheel rotor structure of energy storage was designed in this paper.By comparing and analyzing the structural strength of the rotor of the traditional disc motor,a method of using the high strength of the flywheel rotor material to offset the centrifugal force generated by the motor disc and magnetic steel was proposed,so as to increase the maximum speed limit of the disc motor rotor.By analyzing the strength of the rotor structure of the new type disk motor under different speed,the maximum stress curves of the rotor and disk were obtained.The results show that the theoretical maximum speed of the new disc motor rotor structure is 4.3 times that of the surface mounted structure and 2.7 times that of the embedded structure,respectively.In order to further improve the performance and reliability of the rotor structure of the new type disk motor,a calculation method for the optimal interference of the rotor structure of the new type disk motor was presented.By comparing the safety factor of motor disc and rotor at static and rated speed under different interference,the optimal interference value was obtained.The new disc motor rotor structure designed in this study has great practical application value,and can provide a high performance and high speed disc motor rotor solution for energy storage flywheel and other fields.

关 键 词：盘式电机转子 结构强度 仿真分析 最大应力 

分 类 号：TM351[电气工程—电机]