Voltage/frequency proportional control of stick-slip micropositioning systems.

Micky Rakotondrabe (1) , Yassine Haddab (1) , Philippe Lutz (1)

1 FEMTO-ST - Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174)

A new control type for stick-slip micropositioning system is proposed in this paper : the voltage/frequency (U/f) proportional control. It gives more precise results relatively to the classical control algorithm. It is also an assembly of two classical controllers : the sign and the classical proportional controllers. A high stroke model of a stick-slip micropositioning system is first given. Then, we will theoretically analyse the performances of the closed loop process with the U/f controller. Finally, we will give some experimental results obtained with different values of the proportional gains.

Mots clés: Lyapunov stability; Stick-slip; micropositioning system; control; U/f proportional control; Lyapunov stability.

Domaines: Micro et nanotechnologies/Microélectronique

Micky Rakotondrabe, Yassine Haddab, Philippe Lutz. Voltage/frequency proportional control of stick-slip micropositioning systems.. IEEE Transactions on Control Systems Technology, 2008, 16 (6), pp.1316-1322. ⟨10.1109/TCST.2008.917232⟩. ⟨hal-00340191⟩