Journal
IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS
Volume 51, Issue 7, Pages 4389-4399Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TSMC.2019.2933005
Keywords
Graph theory; Heuristic algorithms; Multi-agent systems; Nonlinear systems; Autonomous systems; Adaptive algorithms; Optimization; Adaptive technique; distributed optimization; internal model (IM) principle; nonfragile controller; nonlinear systems; robust consensus
Funding
- National Natural Science Foundation of China [61473055, 61773089]
- Fundamental Research Funds for the Central Universities [DUT17ZD227]
- Youth Star of Dalian Science and Technology [2015R052, 2016RQ014]
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This article addresses the distributed optimal consensus problem for a class of minimum-phase uncertain nonlinear systems with unity-relative degree and external disturbances. Two edge-based distributed adaptive algorithms are proposed and shown to converge accurately to the optimal solution of the problem using graph theory, nonsmooth analysis, convex analysis, and Lyapunov theory. An example involving the dynamics of a Lorenz-type system is provided to demonstrate the effectiveness of the obtained results.
In this article, we consider the distributed optimal consensus problem under nominal and nonfragile cases for a class of minimum-phase uncertain nonlinear systems with unity-relative degree and disturbances generated by an external autonomous system. The involved cost function is the sum of all local cost functions associated with each individual agent. Two different edge-based distributed adaptive algorithms utilizing the internal model principle are designed to solve the problem in a fully distributed manner. Graph theory, nonsmooth analysis, convex analysis, and the Lyapunov theory are employed to show that the proposed algorithms converge accurately to the optimal solution of the considered problem. Finally, an example involving the dynamics of a Lorenz-type system is provided to demonstrate the effectiveness of the obtained results.
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