Journal
IFAC PAPERSONLINE
Volume 55, Issue 13, Pages 7-12Publisher
ELSEVIER
DOI: 10.1016/j.ifacol.2022.07.227
Keywords
Distributed optimization; Decentralized Control and Large-Scale Systems; Robotics and multi-agent systems
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Funding
- Ministero degli Affari Esteri e della Cooperazione Internazionale [PGR10067]
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In this paper, the authors propose a novel distributed feedback optimization law called Aggregative Tracking Feedback, which guides network systems to an optimal steady state by reconstructing information in the network. The effectiveness of the method is demonstrated through system theoretical analysis and numerical simulations.
In this paper we propose Aggregative Tracking Feedback, i.e., a novel distributed feedback optimization law that steers network systems to a steady state, which is optimal according to an aggregative optimization problem. Aggregative optimization is a recently emerged distributed optimization framework in which the agents of a network minimize the sum of local objective functions. These functions depend both on local and aggregate decision variables (e.g., the barycenter). Motivated by this problem setup, we design a distributed feedback optimization law in which each agent reconstructs information not locally available while concurrently steering the network to an optimal steady state. We perform a system theoretical analysis based on a singular perturbation approach to show that Aggregative Tracking Feedback, in case of strongly convex objective functions, steers the network with a linear convergence rate to the problem minimum. Finally, we show some numerical simulations on a multi-robot surveillance scenario to validate the effectiveness of the proposed method. Copyright (C) 2022 The Authors.
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