Maximising the guaranteed feasible set for stochastic MPC with chance constraints

This paper proposes a method of approximating positively invariant sets and n-step controllable sets of uncertain linear systems that are subject to chance constraints. The computed sets are robustly invariant and are guaranteed to satisfy the probabilistic constraints of the control problem. In con...

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Main Authors: Schaich, R, Cannon, M
Format: Journal article
Published: Elsevier 2017
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author Schaich, R
Cannon, M
author_facet Schaich, R
Cannon, M
author_sort Schaich, R
collection OXFORD
description This paper proposes a method of approximating positively invariant sets and n-step controllable sets of uncertain linear systems that are subject to chance constraints. The computed sets are robustly invariant and are guaranteed to satisfy the probabilistic constraints of the control problem. In contrast, existing methods based on random sampling are only able to satisfy such constraints with a fixed level of confidence. The proposed approach uses explicitly parametrised auxiliary disturbance sets, which are optimised subject to a constraint on their probability measure so as to maximise the relevant positively invariant or n-step controllable set. The results are illustrated by numerical examples.
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spelling oxford-uuid:729bcb2e-9303-4d72-84c0-ea01a61b122c2022-03-26T19:51:13ZMaximising the guaranteed feasible set for stochastic MPC with chance constraintsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:729bcb2e-9303-4d72-84c0-ea01a61b122cSymplectic Elements at OxfordElsevier2017Schaich, RCannon, MThis paper proposes a method of approximating positively invariant sets and n-step controllable sets of uncertain linear systems that are subject to chance constraints. The computed sets are robustly invariant and are guaranteed to satisfy the probabilistic constraints of the control problem. In contrast, existing methods based on random sampling are only able to satisfy such constraints with a fixed level of confidence. The proposed approach uses explicitly parametrised auxiliary disturbance sets, which are optimised subject to a constraint on their probability measure so as to maximise the relevant positively invariant or n-step controllable set. The results are illustrated by numerical examples.
spellingShingle Schaich, R
Cannon, M
Maximising the guaranteed feasible set for stochastic MPC with chance constraints
title Maximising the guaranteed feasible set for stochastic MPC with chance constraints
title_full Maximising the guaranteed feasible set for stochastic MPC with chance constraints
title_fullStr Maximising the guaranteed feasible set for stochastic MPC with chance constraints
title_full_unstemmed Maximising the guaranteed feasible set for stochastic MPC with chance constraints
title_short Maximising the guaranteed feasible set for stochastic MPC with chance constraints
title_sort maximising the guaranteed feasible set for stochastic mpc with chance constraints
work_keys_str_mv AT schaichr maximisingtheguaranteedfeasiblesetforstochasticmpcwithchanceconstraints
AT cannonm maximisingtheguaranteedfeasiblesetforstochasticmpcwithchanceconstraints