134 / 2021-06-18 14:22:12
Research on Resonant Frequency Tracking Control Technology of Linear Oscillation Motor Based on SMO
resonant frequency, sliding-mode observer, second order general integrator, linear oscillation motor,
终稿
wei Xu / Huazhong University of Science and Technology
Due to the low operating efficiency and the complicated control of the traditional linear compressor, a resonant frequency tracking control method based on sliding-mode observer (SMO) is proposed in this paper. In order to obtain a better observation result of the piston stroke, a second order general integrator (SOGI) is used to filter the back electromotive force (EMF) signal obtained by sliding mode observer. According to the characteristic that the phase shift between the piston stroke and motor current is 90° when the linear oscillation motor (LOM) works at the resonance frequency, the average value of stroke-current product (ASCP) method is used to obtain the resonant frequency. The experimental result shows that the proposed SMO using SOGI filter can obtain a better steady-state accuracy compared with the traditional SMO using low pass filter and the resonant frequency can be well tracked by ASCP method.
重要日期
  • 会议日期

    07月01日

    2021

    07月04日

    2021

  • 07月03日 2021

    报告提交截止日期

  • 11月03日 2021

    注册截止日期

主办单位
Huazhong University of Science and Technology, China
协办单位
University of Sydney, Australia
Southwest Jiaotong University, China
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