Published Online: Dec 29, 2023
Page range: 17 - 21
DOI: https://doi.org/10.2478/ecce-2023-0003
Keywords
© 2023 Maaz Tahir Malik et al., published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.
This paper presents the idea of implementing various techniques related to sampled-data control for magnetic levitation systems. The control laws are designed to track time-varying signals and employ the feedback linearization technique based on the approximate discrete-time model. State feedback control is introduced with the gains adjusted via the pole placement method. A positional form proportional-integral-derivative (PID) control uses the trapezoidal summation for the integral term and the backward difference method for the derivative term. An input-output linearization feedback control is the most promising one, which incorporates the integrator in addition to the position error and velocity error. The integral action involves the manipulation of regulation error and reduces it with time to improve performance. Finally, controllers were tested in real time for practical demonstration along with a comparison for comprehensive analysis.