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|Title:||Robust on-line relay automatic tuning of PID control systems||Authors:||Tan, K.K.
|Issue Date:||2000||Citation:||Tan, K.K.,Lee, T.H.,Jiang, X. (2000). Robust on-line relay automatic tuning of PID control systems. ISA Transactions 39 (2) : 219-232. ScholarBank@NUS Repository.||Abstract:||In this paper, a robust on-line relay automatic tuning method for PID control systems is developed which expand on the application domain of Astrom's renowned relay autotuning method. In the proposed configuration, a relay is applied to an inner loop of a controller-stabilised process in the usual manner. Using the induced limit cycle oscillations from the closed-loop system, the controller settings may be re-tuned non-iteratively to achieve enhanced performance without disrupting closed-loop control. Two control tuning methodologies are developed - a direct and an indirect method based on an explicit process model. Simulation examples and a real-time experiment are provided to illustrate the practical appeal and potential advantages of the proposed method over the basic one. © 2000 Elsevier Science Ltd. All rights reserved.||Source Title:||ISA Transactions||URI:||http://scholarbank.nus.edu.sg/handle/10635/81118||ISSN:||00190578|
|Appears in Collections:||Staff Publications|
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