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|Title:||Stabilization and control of general unstable processes with large dead time|
|Keywords:||Internal model control (IMC)|
Unstable dead time processes
|Source:||Lee, S.C., Wang, Q.-G., Zheng, W.X., Sivakumaran, N. (2010-06). Stabilization and control of general unstable processes with large dead time. Transactions of the Institute of Measurement and Control 32 (3) : 286-306. ScholarBank@NUS Repository. https://doi.org/10.1177/0142331209347151|
|Abstract:||A control scheme is presented to achieve stabilization, satisfactory dynamic and steady-state control performance for a general unstable process with dead time, where the rational function part of the process could be of non-first order and the dead time of it larger than the upper bound for stabilization by PID control. The idea is to remove the stable lag part of the process by an internal model control-like compensation with intended preservation of internal stabilizability so that the compensated plant becomes a minimal order one with unstable poles only (the first order in most realistic cases) and its internal stabilization and effective control can be carried out much easier than that for the original process. The proposed scheme can thus overcome the limitations due to presence of stable lag terms inherent in almost any process on its stabilization and effective control. The design details of the proposed scheme are given, and its performance and robustness demonstrated through examples in comparison with the domain work. © 2010 The Institute of Measurement and Control.|
|Source Title:||Transactions of the Institute of Measurement and Control|
|Appears in Collections:||Staff Publications|
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