Synthesis of controllers based on linear matrix inequalities for a magnetic levitation system

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Authors

  • Dao Van Ba Institute of Weapons, General Department of Defence Industry
  • Nguyen Viet Phuong (Corresponding Author) Institute of Missile, Academy of Military Science and Technology

DOI:

https://doi.org/10.54939/1859-1043.j.mst.98.2024.61-68

Keywords:

Magnetic levitation system; Linear Matrix Inequalities (LMIs); Integral-state feedback control; Sliding mode control; Nonlinear mathematical model.

Abstract

This paper presents the results of synthesizing controllers based on Linear Matrix Inequalities (LMIs) for a magnetic levitation system with a strongly nonlinear mathematical model: integral-state feedback control and sliding mode control. Comparative simulation results and evaluations of the controllers in MATLAB/Simulink software have demonstrated that the controllers perform well and are robust to changes in the mass of the object, with the object's position closely following the setpoint signal. However, in cases where system parameters change significantly, the control system with the integral-state feedback controller may operate inaccurately or even become unstable, whereas the sliding mode controller still ensures stability and robustness against changes in system parameters

References

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Published

25-10-2024

How to Cite

Dao Van Ba, and V. P. Nguyễn. “Synthesis of Controllers Based on Linear Matrix Inequalities for a Magnetic Levitation System”. Journal of Military Science and Technology, vol. 98, no. 98, Oct. 2024, pp. 61-68, doi:10.54939/1859-1043.j.mst.98.2024.61-68.

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Electronics & Automation

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