The position control of robot manipulators with joint flexibility is studied in this work. Two approaches are considered: one based on the property of Passivity and the Variable Structure Control, and another one based on the Backstepping technique and Passivity. The control strategies were tested in a robot prototype, specially built for this purpose. This work presents the experimental results which illustrates the applicability of the control methodologies.
Robot control; passivity; joint flexibility; cascade control; backstepping
