Title :
Robust dynamic programming for min-max model predictive control of constrained uncertain systems
Author_Institution :
Interdisciplinary Center for Sci. Comput., Univ. of Heidelberg, Germany
Abstract :
We address min-max model predictive control (MPC) for uncertain discrete-time systems by a robust dynamic programming approach, and develop an algorithm that is suitable for linearly constrained polytopic systems with piecewise affine cost functions. The method uses polyhedral representations of the cost-to-go functions and feasible sets, and performs multiparametric programming by a duality based approach in each recursion step. We show how to apply the method to robust MPC, and give conditions guaranteeing closed loop stability. Finally, we apply the method to a tutorial example, a parking car with uncertain mass.
Keywords :
closed loop systems; discrete time systems; dynamic programming; minimax techniques; predictive control; stability; uncertain systems; closed loop stability; constrained uncertain discrete-time systems; linearly constrained polytopic systems; min-max model predictive control; multiparametric programming; piecewise affine cost functions; polyhedral representations; robust dynamic programming; Cost function; Dynamic programming; Feedback; Open loop systems; Predictive control; Predictive models; Robust control; Robust stability; Robustness; Uncertain systems;
Journal_Title :
Automatic Control, IEEE Transactions on
DOI :
10.1109/TAC.2004.838489