implementation of autotuning in interacting tanks to emulate a bioreactor
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2012
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Abstract
The set of two interacting tanks in the Chemical Engineering Lab is a prototype process that can be used to test novel and interesting control schemes. For this project a process that can be represented as a form of an either first order plus dead time (FOPDT) or a second order plus dead time (SOPDT) is tuned using a self-tuning algorithm, with Deadtime added to the control scheme to allow the simulation of a bioreactor. The algorithm uses an intelligent form of a PID controller that determines the tuning settings; thereby eliminating the need for the manually setting of the classical PID controller settings. Because there are a myriad of tuning algorithms, we followed the suggestion of Luyben (1) to provide 3 user selectable tuning settings that the user could choose from “on the fly”. These PI settings are calculated using three distinct methods; Ziegler Nichols (ZN), Tyreus Luyben (TL) and IMC methods. The auto-tuning algorithm and deadtime loop were designed, and the PLC and relay feedback tests were conducted to validate that the set up worked properly. An auto-tuning relay feedback algorithm implemented and system parameters values calculated. The algorithm was successfully able to maintain control during upsets.
| Reference Key |
nippert2012internationalimplementation
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|---|---|
| Authors | ;Charles Nippert;Sorelle Veigne;Steven Voelker;Charles Owens |
| Journal | International journal of offender therapy and comparative criminology |
| Year | 2012 |
| DOI |
10.3991/ijoe.v8i3.2160
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| URL | |
| Keywords | Keywords not found |
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