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|Title:||Online relay automatic tuning of multi-loop PI controllers|
|Authors:||Tan, K.K. |
|Citation:||Tan, K.K.,Lee, T.H.,Ferdous, R. (2003). Online relay automatic tuning of multi-loop PI controllers. Intelligent Automation and Soft Computing 9 (3) : 155-167. ScholarBank@NUS Repository.|
|Abstract:||In this paper, an approach for online relay automatic tuning of multi-loop PI controllers is described for multivariable processes. In the absence of significant inter-loop cross-coupling, only one closed-loop experiment may be necessary to tune the controllers to achieve specified closed-loop characteristics. When the inter-loop interaction is significant, multiple relay experiments can be conducted to derive a process model, based on which both the decoupler and the multi-loop controllers can be designed. Simulation examples (on two-inputs-two-outputs (TITO) processes) and a real-time experiment are provided to illustrate the practical appeal of the proposed method. The performance is compared to multi-loop control design based on the Biggest Log Modulus (BLT) method.|
|Source Title:||Intelligent Automation and Soft Computing|
|Appears in Collections:||Staff Publications|
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