To weaken the influences of load disturbances,mechanical time delay,and the velocity mismatch between X axis and Y axis to the contour precision of XY table linear servo system,a compound control scheme based on combining IP control,speed feed-forward and variable gain cross-coupled control is presented in this paper.

The basic features of strip width control including automatic width control (AWC), progressive width control (PWC), short stroke control (SSC) of Baosteel 2050 mm rough rolling are analyzed in details.

In this paper,a tree-shaped network of strings equipped with velocity feedback controllers is considered,and the exponential stability of the closed-loop system is obtained.

Cubic nonlinear velocity feedback control law was proposed to suppress the primary parametric resonance of a beam with simple surported ends and subjected to thermal shock load.

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.