A stochastic MPC scheme for distributed systems with multiplicative uncertainty. (June 2022)

• Record Type: Journal Article
• Authors: Mark, Christoph; Liu, Steven
• Is Part Of: Automatica. Volume 140(2022)
• Publication Date: 2022-06
• Subjects: Distributed Model Predictive Control -- Stochastic control -- Distributed control -- Predictive control; Automatic control -- Periodicals; Automation -- Periodicals; 629.805
• DOI: 10.1016/j.automatica.2022.110208
• Languages: English
• ISSNs: 0005-1098

Abstract

Abstract: This paper presents a Distributed Stochastic Model Predictive Control algorithm for networks of linear systems with multiplicative uncertainties and local chance constraints on the states and control inputs. The chance constraints are approximated via Cantelli's inequality by means of expected value and covariance. The cooperative control algorithm is based on the distributed Alternating Direction Method of Multipliers, which renders the controller fully distributedly implementable, recursively feasible and ensures point-wise convergence of the states. The aforementioned properties are guaranteed through a properly selected distributed invariant set and distributed terminal constraints for the mean and covariance. The paper closes with an example highlighting the chance constraint satisfaction, numerical properties and scalability of our approach.