Scholarlink

<p>To address the thrust ripple problem of Permanent Magnet Linear Synchronous Motors used in direct-drive Computer Numerically Controlled machines, an Adaptive Disturbance Observer based on Quasi Proportional Resonant (QPR-ADO) is proposed. Firstly, the thrust ripple of PMLSM is modeled, dividing it into positioning force disturbance and non-periodic disturbance. Secondly, the propagation path of the double-frequency component in the positioning force disturbance is analyzed, and an inductance parameter identification method is used to block the accumulation of double-frequency errors. Combining the QPR controller, an adaptive control law is designed, and the identified inductance parameters are input into the ADO to achieve precise suppression of non-periodic disturbance components. A delay compensation module is added to the ADO to offset the inherent phase lag of the low-pass filter. Finally, the experimental results demonstrate that, when the PMLSM is operating at both rated speed and high-speed conditions, the thrust ripple suppression method based on QPR-ADO provides significant advantages over current mainstream control strategies.</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

Adaptive disturbance observer based on quasi proportional resonant for PMLSM thrust ripple suppression

  • 期刊论文

  • 发表日期：

    2025年6月5日

查看全文
  • Mingbo Xu,
  • Degang Lv,
  • Shenggung Yue

摘要

To address the thrust ripple problem of Permanent Magnet Linear Synchronous Motors used in direct-drive Computer Numerically Controlled machines, an Adaptive Disturbance Observer based on Quasi Proportional Resonant (QPR-ADO) is proposed. Firstly, the thrust ripple of PMLSM is modeled, dividing it into positioning force disturbance and non-periodic disturbance. Secondly, the propagation path of the double-frequency component in the positioning force disturbance is analyzed, and an inductance parameter identification method is used to block the accumulation of double-frequency errors. Combining the QPR controller, an adaptive control law is designed, and the identified inductance parameters are input into the ADO to achieve precise suppression of non-periodic disturbance components. A delay compensation module is added to the ADO to offset the inherent phase lag of the low-pass filter. Finally, the experimental results demonstrate that, when the PMLSM is operating at both rated speed and high-speed conditions, the thrust ripple suppression method based on QPR-ADO provides significant advantages over current mainstream control strategies.