Recursive model free controller: Application to friction compensation and trajectory tracking

In this paper friction compensation and trajectory tracking scheme is proposed for an X-Y robot using a Recursive Model Free Controller (RMFC). This controller is based on the theory of piecewise continuous systems which are a particular class of hybrid systems with autonomous switchings and controlled impulses. RMFC uses only the robot position measurements and does not require knowledge of electromechanical system parameters. The proposed control scheme is validated on a real time X-Y robot system.

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