Nonlinear control of a linear motion system

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It is well-known that Bode's gain/phase relation imposes limitations on the performance of a linear system. Tocircumvent these limitations, two examples from literature on nonlinear controllers, more precisely, a PID withnonlinear gain and a SPAN (split-path nonlinear) filter, are implemented on a motion system in order to improve thestep response in comparison with a conventional linear PID controller. Simulations and experiments are presented and itis shown that these nonlinear control strategies can outperform a linear PID controller.
Original languageEnglish
Title of host publicationProceedings of the 16th IFAC World Congress, July 4-8, 2005, Prague, Czech Republic
EditorsP. Piztek
ISBN (Print)0-08-045108-X
Publication statusPublished - 2005


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