Scholarlink

<p>This paper investigates the frequency distribution of electromagnetic force carrier harmonics introduced by the inverter and examines the relationship between sideband electromagnetic forces and the forced deformation of the stator can in canned permanent magnet synchronous motors (CPMSMs). A frequency avoidance and vibration suppression control method is proposed based on the equivalent hollow cylinder model, which adjusts the inverter carrier frequency to minimize the deformation of the can sleeve. Secondly, the finite element method, combined with the frequency avoidance control method, is utilized to analyze the magnitude of forced deformation in the can sleeve, resulting from the coupling of electromagnetic force carrier harmonics and fluctuating temperatures. It was found that the non-magnetic can sleeve exhibits greater sensitivity to temperature and harmonic electromagnetic forces, making deformation more likely to occur at the notches of the can sleeve. Finally, experimental testing of the prototype under frequency avoidance control validated the effectiveness of the finite element method. This provides theoretical support and guidance for enhancing the safety and reliability of canned permanent magnet motors.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Analysis of Forced Vibration in the Stator Can of a Canned Permanent Magnet Synchronous Motor Under Inverter Power Supply

  • 期刊论文

  • 发表日期：

    2026年2月26日

查看全文
  • Ming Li,
  • Shuhao Zhou,
  • Rong Wang,
  • Shuxian Lun

摘要

This paper investigates the frequency distribution of electromagnetic force carrier harmonics introduced by the inverter and examines the relationship between sideband electromagnetic forces and the forced deformation of the stator can in canned permanent magnet synchronous motors (CPMSMs). A frequency avoidance and vibration suppression control method is proposed based on the equivalent hollow cylinder model, which adjusts the inverter carrier frequency to minimize the deformation of the can sleeve. Secondly, the finite element method, combined with the frequency avoidance control method, is utilized to analyze the magnitude of forced deformation in the can sleeve, resulting from the coupling of electromagnetic force carrier harmonics and fluctuating temperatures. It was found that the non-magnetic can sleeve exhibits greater sensitivity to temperature and harmonic electromagnetic forces, making deformation more likely to occur at the notches of the can sleeve. Finally, experimental testing of the prototype under frequency avoidance control validated the effectiveness of the finite element method. This provides theoretical support and guidance for enhancing the safety and reliability of canned permanent magnet motors.