Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5005186 | ISA Transactions | 2011 | 6 Pages |
Abstract
An on-line identification procedure is presented for cascade control systems in which both inner and outer loop process dynamics are modelled simultaneously by performing a single experiment. Departing from the conventional relay autotuning method where the controller is replaced by a relay, the proposed method is carried out on-line without breaking the closed-loop control. Exact analytical expressions are derived for process model parameters in terms of a few critical parameters of half period data of limit cycle output. Simulation examples are included to demonstrate the effectiveness of the proposed method.
Related Topics
Physical Sciences and Engineering
Engineering
Control and Systems Engineering
Authors
Utkal Mehta, Somanath Majhi,