LIU Ye-chao1, NI Feng-lei1, JIANG Li1, et al. Control strategy for robot with flexible joints based on joint torque[J]. 2008, 27(11): 117-120. DOI: 10.13873/j.1000-97872008.11.039.
The system’s bandwidth and stability are badly effected owing to the joint flexibility
so a strategy based on joint torque negative feedback is adopted for the robot control
which actually improves the system’s bandwidth and stability by decreasing the motor’s effective inertia.A composite control structure based on full state feedback is developed and the system’s stability is proved.Experiments for position and impedance control are made in our robot arm
which verifies the validity and feasibility of the proposed strategy.