On the basis of PD control with feedforward compensation for robot s trajectory tracking, a friction compensation for two main joints of the special-purpose robot for hydraulic turbine repair is applied.

Thetrackingerrors of PD control with feedforward compensation exponentially converge to zero and the tracking errors of PD control and modified PD with feedforward compensation exponentially converge to a closed ball.

Based on the PD feedback control, the tracking control approach is used to actualize the robot tracking control.

Flatness feed-forward control based on measured values of incoming strip profile

In this paper,we have discussed the problem of u- sing multisection NC code first gazes optimized processing to implement the feed-forward control of CNC machine based on control theory,thus it can constantly adjust the feeding speed based on different curvature radius in the shortes.

Automatic adding flocculent is effected through feed-back control and feed-forward control of automatic adding flocculent solving liquid.

A study on the relationship between the Feedforward Control and the blind spot of nursing safety;

Self-tuning feedforward control of slurry concentration in a dredging system;

Improved feedforward control of three-phase voltage source PWM rectifier;