Reset PID Design for Motion Systems With Stribeck Friction

Ruud Beerens, Andrea Bisoffi, Luca Zaccarian, Henk Nijmeijer, Maurice Heemels, Nathan van de Wouw

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We present a reset control approach to achieve setpoint regulation of a motion system with a proportional-integral-derivative (PID)-based controller, subject to Coulomb friction and a velocity-weakening (Stribeck) contribution. While classical PID control results in persistent oscillations (hunting), the proposed reset mechanism induces asymptotic stability of the setpoint and significant overshoot reduction. Moreover, robustness to an unknown static friction level and an unknown Stribeck contribution is guaranteed. The closed-loop dynamics are formulated in a hybrid systems framework, using a novel hybrid description of the static friction element, and the asymptotic stability of the setpoint is proven accordingly. The working principle of the controller is demonstrated experimentally on a motion stage of an electron microscope, showing superior performance over classical PID control.
Original languageEnglish
Pages (from-to)294-310
Number of pages17
JournalIEEE Transactions on Control Systems Technology
Issue number1
Early online date26-Mar-2021
Publication statusPublished - 1-Jan-2022

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