Consensus tracking via iterative learning control for singular nonlinear fractional-order MASs
The present work aims at the study of the closed-loop Dα-type iterative learning consensus tracking problem under differ-ent communication topology protocols of a class of singular nonlinear fractional-order multi-agent systems with disturbances.Firstly,a sufficient condition for the convergence of consensus error of nonlinear generalized fractional-order multi-agent systems under fixed communication topology was given based on the characteristics of fractional calculus and generalized Gronwall inequality.Subsequently,the obtained theoretical results were extended to the case where the communication topology changed with the itera-tion axis,and the convergence characteristics of the consensus tracking error of the controlled multi-agent system were analyzed.Finally,the effectiveness of the proposed closed-loop Dα-type iterative learning consensus control protocol was verified by two numerical simulation examples.