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Title: Co-operative control of multi-input single-output processes: On-line strategy for releasing input saturation
Authors: Wang, Q.-G. 
Zhang, Y.
Cai, W.-J.
Bi, Q.
Hang, C.-C. 
Keywords: Co-operative control
Manipulated variable constraint
Multi-input systems
Predictive control
Issue Date: May-2001
Citation: Wang, Q.-G., Zhang, Y., Cai, W.-J., Bi, Q., Hang, C.-C. (2001-05). Co-operative control of multi-input single-output processes: On-line strategy for releasing input saturation. Control Engineering Practice 9 (5) : 491-500. ScholarBank@NUS Repository.
Abstract: A practical problem frequently encountered in industry but not usually addressed by researchers is output unreachability under input saturation: For a large disturbance or set-point change, the process variable may never reach the set-point even when the manipulated variable has been driven to saturation. The process variable can be brought back to the set-point only by activating auxiliary manipulated variables. However, the timing of activation remains an open problem. In this paper, a new strategy based on disturbance estimation and output prediction is presented. It can detect unreachability early on ans activate the auxiliary variables in a timely manner so that the process variable will return to the set-point much faster. Simulation and real-time testing on a pilot mini-HVAC system show the effectiveness of the proposed strategy. © 2001 Elsevier Science Ltd. All rights reserved.
Source Title: Control Engineering Practice
ISSN: 09670661
DOI: 10.1016/S0967-0661(01)00009-0
Appears in Collections:Staff Publications

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