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Licensed Unlicensed Requires Authentication Published by De Gruyter January 19, 2019

Control of Integrating Process with Time Delay

Ashraf Raza and Nishat Anwar


This paper addresses the control of integrating processes with time delay. Two different control structures, namely single feedback loop (SFBL) and double feedback loop (DFBL) have been considered. In the SFBL, the controller has been designed using direct synthesis approach for the desired regulatory performance. In the DFBL, the inner loop controller is the proportional only controller which stabilizes the inner loop. The outer loop controller of DFBL has been designed through direct synthesis approach to achieve desired servo performance. Both the proposed control scheme works satisfactorily for low order as well as high order integrating process which may have a time delay and inverse response dynamics. Simulation of various examples shows improved performance when compared with the recently reported method.


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Received: 2018-07-24
Revised: 2018-11-15
Accepted: 2018-12-08
Published Online: 2019-01-19

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