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To cater to the uncertainties in system dynamic parameters and disturbances, the sliding mode control (SMC) law is often used. The terminal SMC uses a nonlinear sliding surface (SS) to reduce the vibration caused by rotor movement over a specific time. A 1-degree-of-freedom (DOF) model is selected for a rotor and active magnetic bearing (AMB) system to observe the control action. It is found that the nonlinear term in the SS makes the control law effective in vibration reduction. Also, the control law performed better with system uncertainties and can be applied to low-speed motors and turbines.

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A Terminal Nonlinear Sliding Mode Control-Based Rotor and Active Magnetic Bearing System

  • 会议论文

  • 发表日期：

    2025年

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  • Shivani Raj,
  • Rajiv Tiwari

摘要

To cater to the uncertainties in system dynamic parameters and disturbances, the sliding mode control (SMC) law is often used. The terminal SMC uses a nonlinear sliding surface (SS) to reduce the vibration caused by rotor movement over a specific time. A 1-degree-of-freedom (DOF) model is selected for a rotor and active magnetic bearing (AMB) system to observe the control action. It is found that the nonlinear term in the SS makes the control law effective in vibration reduction. Also, the control law performed better with system uncertainties and can be applied to low-speed motors and turbines.