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Iterative Learning Control of Stochastic Multi-Agent Systems with Variable Reference Trajectory and Topology
- Authors: Koposov A.S.1, Pakshin P.V.1
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Affiliations:
- Alekseev Arzamas Polytechnic Institute, Nizhny Novgorod State Technical University
- Issue: No 6 (2023)
- Pages: 79-99
- Section: Stochastic systems
- URL: https://bakhtiniada.ru/0005-2310/article/view/144291
- DOI: https://doi.org/10.31857/S0005231023060053
- EDN: https://elibrary.ru/CSGCPH
- ID: 144291
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Abstract
In modern smart manufacturing, robots are often connected via a network, and their task can change according to a predetermined program. Iterative learning control (ILC) is widely used for robots executing high-precision operations. Under network conditions, the efficiency of ILC algorithms may decrease if the program is restructured. In particular, the learning error may temporarily increase to an unacceptable value when changing the reference trajectory. This paper considers a networked system with the following features: the reference trajectory and parameters change between passes according to a known program, agents are subjected to random disturbances, and measurements are carried out with noise. In addition, the network topology changes due to the disconnection of some agents from the network and the connection of new agents to the network according to a given program. A distributed ILC design method is proposed based on vector Lyapunov functions for repetitive processes in combination with Kalman filtering. This method ensures the convergence of the learning error and reduces its increase caused by changes in the reference trajectory and network topology. The effectiveness of the proposed method is confirmed by an example.
About the authors
A. S. Koposov
Alekseev Arzamas Polytechnic Institute, Nizhny Novgorod State Technical University
Email: koposov96@yandex.ru
Arzamas, Nizhny Novgorod oblast, Russia
P. V. Pakshin
Alekseev Arzamas Polytechnic Institute, Nizhny Novgorod State Technical University
Author for correspondence.
Email: pakshinpv@gmail.com
Arzamas, Nizhny Novgorod oblast, Russia
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