New IMC Tuning Rules to Improve Performance and Stability

Thirunavukkarasu , I and George, V I and Shanmugapriya, S (2010) New IMC Tuning Rules to Improve Performance and Stability. Hindustan Journal , 3. pp. 45-54.

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The derivative mode is often omitted in PID controller tuning as it proves difficult to arrive by trial and error at a set constants which meets plant requirements. In this paper we are evaluating several model based PID tuning methods. For lag dominant processes , SIMC algorithm should be employed first and if the response is not satisfactory, derivative action can be introduced using Ds-d technique. For delay dominant systems, IMC tuning method should be preferred. It was observed that when configured with the same derivative filter factor, the series form of a PID controller produces smoother valve adjustments that the parallel version, at the expense of slight decrease in achievable performance increasing this parameter improves the control effort but limits achievable performance.

Item Type: Article
Subjects: Engineering > MIT Manipal > Chemical
Engineering > MIT Manipal > Instrumentation and Control
Depositing User: MIT Library
Date Deposited: 10 Jan 2012 10:49
Last Modified: 13 Sep 2014 04:28

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