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作者机构:Texas A&M Univ Dept Chem Engn College Stn TX 77843 USA Univ Houston Dept Chem Engn Houston TX 77204 USA
出 版 物:《AUTOMATICA》 (自动学)
年 卷 期:1998年第34卷第12期
页 面:1521-1530页
核心收录:
学科分类:0711[理学-系统科学] 0808[工学-电气工程] 07[理学] 08[工学] 070105[理学-运筹学与控制论] 081101[工学-控制理论与控制工程] 0811[工学-控制科学与工程] 0701[理学-数学] 071101[理学-系统理论]
主 题:adaptive control predictive control closed-loop identification semidefinite programming
摘 要:In this work, we formulate a new approach to simultaneous constrained model predictive control and identification (MPCI). The proposed approach relies on the development of a persistent excitation (PE) criterion for processes described by DARX models. That PE criterion is used as an additional constraint in the standard on-line optimization of MPC. The resulting on-line optimization problem of MPCI is handled by successively solving a series of semi-definite programming problems. Advantages of MPCI in comparison to other closed-loop identification methods are (a) Constraints on process inputs and outputs are handled explicitly, (b) Deterioration of output regulation is kept to a minimum, while closed-loop identification is performed. The applicability of the method is illustrated by a number of simulation studies. Theoretical and computational issues for further investigation are suggested. (C) 1998 Elsevier Science Ltd. All rights reserved.