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.
Sampled-Data Nonlinear control of ECP-730 Magnetic Levitation System
2024-03-17
The Scientific Journal of Riga Technical University - Electrical, Control and Communication Engineering; Vol 19, No 1 (2023): Electrical, Control and Communication Engineering; 017-021 ; 2255-9159 ; 2255-9140
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
DDC: | 629 |
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