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Verifying stability of approximate explicit MPC

Hovd, M and Scibilia, F and Maciejowski, J and Olaru, S (2009) Verifying stability of approximate explicit MPC. Proceedings of the IEEE Conference on Decision and Control. pp. 6345-6350. ISSN 0191-2216

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Abstract

Several authors have proposed algorithms for approximate explicit MPC [1],[2],[3]. These algorithms have in common that they develop a stability criterion for approximate explicit MPC that require the approximate cost function to be within a certain distance from the optimal cost function. In this paper, stability is instead ascertained by considering only the cost function of the approximate MPC. If a region of the state space is found where the cost function is not decreasing, this indicates that an improved approximation (to the optimal control) is required in that region. If the approximate cost function is decreasing everywhere, no further refinement of the approximate MPC is necessary, since stability is guaranteed. ©2009 IEEE.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div F > Control
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 12:20
Last Modified: 08 Dec 2014 02:29
DOI: 10.1109/CDC.2009.5400788