Title | ||
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Nonlinear control of a magnetic levitation shaft by numerical inversion of its behavioral model |
Abstract | ||
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This paper deals with the stabilization of a magnetically-levitating shaft using a simple, fast, nonlinear discrete time control approach. The proposed control approach uses an approximate numerical one-step time discretization of the nonlinear plant model behavior obtained from offline simulations. Using that discretization, a control minimizing the distance between the plant output and a reference linear system is computed, leading the system to adopt its dynamical behavior. Since the prediction horizon is limited to one time-step, the execution time of the algorithm can be completely bounded. It can thus easily be implemented and used to control fast electromechanical systems. Experimental results obtained from a laboratory device show the performance and robustness of the proposed controller. |
Year | DOI | Venue |
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2014 | 10.1109/ECC.2014.6862426 | ECC |
Keywords | Field | DocType |
approximation theory,discrete time systems,magnetic levitation,nonlinear control systems,predictive control,shafts,stability,approximate numerical one-step time discretization,behavioral model,dynamical behavior,fast electromechanical systems,laboratory device,magnetic levitation shaft,nonlinear discrete time control approach,nonlinear plant model behavior,numerical inversion,offline simulations,plant output,prediction horizon,reference linear system,stabilization | Discretization,Control theory,Nonlinear system,Linear system,Nonlinear control,Control theory,Behavioral modeling,Robustness (computer science),Magnetic bearing,Engineering | Conference |
Citations | PageRank | References |
1 | 0.39 | 8 |
Authors | ||
2 |
Name | Order | Citations | PageRank |
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Stephane Bonnet | 1 | 5 | 1.95 |
De Miras, J. | 2 | 29 | 6.09 |