期刊
MATHEMATICAL CONTROL AND RELATED FIELDS
卷 11, 期 4, 页码 771-796出版社
AMER INST MATHEMATICAL SCIENCES-AIMS
DOI: 10.3934/mcrf.2020046
关键词
Dissipativity; optimal control; discounting
资金
- Australian Research Council [DP160102138, DP180103026]
- Deutsche Forschungsgemeinschaft [Gr1569/13-2]
This paper investigates results related to discounted optimal control, introduces the concept of discounted strict dissipativity, and demonstrates its importance for system stability. For discount factors close to one, strict dissipativity implies discounted strict dissipativity, leading to practically asymptotically stable equilibria in optimally controlled systems.
(Communicated by Trelat) ABSTRACT. The paradigm of discounting future costs is a common feature of economic applications of optimal control. In this paper, we provide several results for such discounted optimal control aimed at replicating the now wellknown results in the standard, undiscounted, setting whereby (strict) dissipativity, turnpike properties, and near-optimality of closed-loop systems using model predictive control are essentially equivalent. To that end, we introduce a notion of discounted strict dissipativity and show that this implies various properties including the existence of available storage functions, required supply functions, and robustness of optimal equilibria. Additionally, for discount factors sufficiently close to one we demonstrate that strict dissipativity implies discounted strict dissipativity and that optimally controlled systems, derived from a discounted cost function, yield practically asymptotically stable equilibria. Several examples are provided throughout.
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