Nonlinear Contractive Model Predictive Control via Polytopic Robust Controllable Sets

Jian Wan, Josep Vehi, Ningsu Luo

Research output: Contribution to journalArticlepeer-review


A general framework for computing polytopic robust controllable sets of constrained nonlinear uncertain
discrete-time systems as well as controlling such complex systems based on the computed polytopic robust
controllable sets is introduced in this paper. The resulting one-step control approach turns out to be
a robust model predictive control scheme with feasible unit control horizon and contractive constraint.
The solvers of set inversion and constrained minimax optimization via interval analysis are applied to
compute robust controllable sets and one-step control inputs in a reliable way. The computed robust
controllable sets are unions of boxes and polytope geometry is applied to approximate a union of boxes
innerly by one polytope.
Original languageEnglish
Pages (from-to)905-917
JournalJournal of Convex Analysis
Issue number4
Publication statusPublished - 2008


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