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Design of Modified dead time compensators for stable processes with integrator and longer time using adaptive controller

Saravanakumar, G and Wahidabanu, R S D and George, V I and Thirunavukkarasu, I (2006) Design of Modified dead time compensators for stable processes with integrator and longer time using adaptive controller. Journal of System Science and Engineering, 14. pp. 65-70.

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Abstract

The Smith predictor is well known as an effective dead time compensator for a stable process with large dead time. The previous modes of smith predictors such as internal model control and predictive control cannot be used for processes having an integral mode and longer dead times. Since a constant load disturbance will result in steady state error. This paper presents two approaches to overcome this problem. In the first approach the smith predictor was able to overcome the set point response and load response. In the second approach an I-PD controller is used and, it is proved that there is no steady state error for a constant load disturbance. An approach to auto tune this I-PD Controller for plant with longer dead time is also attempted by deriving adaptive controller gains.

Item Type: Article
Uncontrolled Keywords: Dead time compensation, Ziegler – Nichol’s tuning, Internal model control, predictive control, Load response, and set point response.
Subjects: Engineering > MIT Manipal > Instrumentation and Control
Depositing User: MIT Library
Date Deposited: 03 Mar 2015 09:37
Last Modified: 03 Mar 2015 09:37
URI: http://eprints.manipal.edu/id/eprint/142076

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