Scenario and adaptive model predictive control of uncertain systems
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Date
2015-10
Publication Type
Conference Paper
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yes
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Abstract
Two recent predictive control approaches for constrained systems subject to uncertainty are reviewed. The first one, named scenario MPC, is best suited for stochastic systems where a certain share of constraint violations is tolerated and rewarded. The approach is able to control precisely the share of violations that occur during closed loop operation, under quite general assumptions on the involved stochastic variables. The second technique, named adaptive MPC, is cast in a different framework, where the aim is to enforce robustly the system cnstraints and a stochastic characterization of the uncertainty is not required. The algorithm embeds a real-time set membership identification strategy that yields a refined set of unfalsified models at each time step, hence reducing the size of the model uncertainty and improving the closed loop performance over time. After recalling the main results pertaining to each approach, their applicability, strengths and weaknesses are discussed, as well as open issues that can be subject of future research.
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published
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Book title
5th IFAC Conference on Nonlinear Model Predictive Control, NMPC 2015. Proceedings
Journal / series
Volume
48 (23)
Pages / Article No.
352 - 359
Publisher
Elsevier
Event
5th IFAC Conference on Nonlinear Model Predictive Control (NMPC 2015)
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Software
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Subject
Adaptive MPC; Chance Constraints; Model Predictive Control; Robust MPC; Scenario MPC; Scenario Optimization; Set Membership Identification; Soft Constraints; Stochastic MPC; Stochastic Systems