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A Constraint-Tightening Approach to Nonlinear Stochastic Model Predictive Control under General Bounded Disturbances

, and . Proc. 21th IFAC World Congress, 53, page 7130-7135. Berlin, Germany, (July 2020)
DOI: 10.1016/j.ifacol.2020.12.518

Abstract

This paper presents a nonlinear model predictive control strategy for stochastic systems with state- and input-dependent, finite-support disturbances subject to individual chance constraints. Our approach uses an online computed stochastic tube to ensure stability, constraint satisfaction, and recursive feasibility in the presence of stochastic uncertainties. The shape of the tube and the constraint backoff is based on an offline computed incremental Lyapunov function.

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