Comparative Investigation of Feed-Forward Control Algorithms
AbstractThe paper presents investigation results of four different structures of feed-forward control algorithms applied for controlling processes, in which the time delay in the disturbance path is less than that in process path. The control algorithms were investigated via computer simulation of feed-back / feed-forward control system performance at various type disturbances and dynamical parameters of controlled process. The performance index for comparison of the transient responses in the control systems was the integral of absolute error. The investigation results show statistically significant improvement of the control system performance by using the dynamic (lead-lag) algorithm connected in series with PD control algorithm in a feed-forward controller as compared to the steady-state, the ordinary dynamic and the modified dynamic feed-forward control algorithms. Ill. 3, bibl. 6, tabl. 3 (in English; abstracts in English and Lithuanian).
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