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In ship design, there are strict vibration-proof requirements for precision instruments. The vibration can cause structural fatigue of important equipment, which affects the service life. A magnetic levitation damping device is proposed to achieve vibration reduction. The uncertainties of the parameters in complex interference degrade the control performance of a magnetic levitation damping system. To deal with this problem, this paper proposes an adaptive predictive control based on the recursive least square adaptive law. First, a mathematical model based on the physical structure of the magnetic levitation damping device is established. Based on the mathematical model, a predictive controller is designed. It then combines the adaptive theory with the recursive least square adaptive law to address the problem of model uncertainties. Finally, it establishes the adaptive law to control the magnetic levitation damping device. Simulations show that this design has a fast response speed, strong robustness, and anti-interference ability.

Adaptive predictive control based on ship magnetic levitation damping device