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高速感应电机的实心转子径向膨胀位移研究
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中央高校基本科研业务费(DUT18ZD221)


Research on Radial Expansion of Solid Rotor of HighSpeed Induction Motor
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    摘要:

    对于高速感应电机来说,普通的鼠笼式转子结构难以承受其巨大离心力,这就需要实心转子来满足电机在高速运行时需要的结构强度。但即使是实心转子,在高速状态下也难以保证其工作时稳定的结构强度,由于巨大离心力的影响,实心转子在工作时会发生轻微径向膨胀位移,这会导致感应电机的气隙大小发生变化,从而引起电机的电磁性能降低。为避免该设计缺陷,运用Workbench对4种实心转子的结构强度进行仿真分析,并探究开槽实心转子的槽宽、槽深、槽数、转速和外径等因素在转子运行时对径向位移的影响。研究结果将为高速电机气隙设计提供参考,以提高电机的工作性能。

    Abstract:

    For highspeed induction motors,the common squirrel cage rotor structure is difficult to withstand its huge centrifugal force,which requires solid rotor to meet the structural strength required by the motor in highspeed operation.But even the solid rotor can not guarantee its stable structure strength at high speed.Due to the influence of huge centrifugal force,the solid rotor will produce slight radial expansion displacement when it works,which will lead to the change of airgaps size of induction motor,thus the electromagnetic performance of the motor is reduced.In order to avoid this design defect,the structural strengths of four solid rotors were simulated and analyzed by using Workbench.The influences of the slot width,slot depth,slot number,rotational speed,external diameter and other factors on the radial expansion displacement of solid rotors during operation were explored.The research results will provides reference for air gap design of highspeed motors to improve the performance of motors.

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宋树家,孙建忠,王跃方.高速感应电机的实心转子径向膨胀位移研究[J].机床与液压,2020,48(22):125-128.
SONG Shujia, SUN Jianzhong, WANG Yuefang. Research on Radial Expansion of Solid Rotor of HighSpeed Induction Motor[J]. Machine Tool & Hydraulics,2020,48(22):125-128

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  • 在线发布日期: 2021-04-22
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