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A modified smith predictor with an approximate inverse of dead time

✍ Scribed by Hsiao-Ping Huang; Cheng-Liang Chen; Yung-Cheng Chao; Pei-Lin Chen

Publisher
American Institute of Chemical Engineers
Year
1990
Tongue
English
Weight
482 KB
Volume
36
Category
Article
ISSN
0001-1541

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✦ Synopsis

A compensator that approximates the inverse of dead time at low frequencies in a modified Smith predictor (MSP) control system is proposed, and the design of an MSP control system for it is given. The performance of the MSP with compensator, using a first-order element as a low-pass filter, is described. Analysis and simulation results show that the compensator improves performance in the disturbance rejection of the original Smith predictor.

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