Adaptive soft variable structure synchronization control for complex networks
SUN Yan-qin
WU Huai-yu
Abstract：This article studies the outer synchronization problem of two complex networks with external time-varying disturbances.To enhance the anti-interference ability of the network and ensure accurate suppression of external distur-bances,a novel strategy called disturbance observer-based adaptive soft variable structure control(DO-ASVSC)is pro-posed.Firstly,a disturbance observer(DO)is designed to equate external interference from the input control channel.This approach is applicable to any complex network with disturbances and can also handle the case of two networks simulta-neously affected by disturbances,thereby expanding its applicability.Secondly,by combining adaptive control ideas and improving the ASVSC strategy,relevant outer synchronization theorem conditions have been obtained based on Lyapunov stability theory and linear inequality techniques.Moreover,the designed robust controller without sign functions minimizes chattering effects and prevents potential damage to actuators caused by high-frequency switching control signals.Finally,the effectiveness and superiority of the proposed control scheme are verified through numerical examples.
Keywords：complex networkssynchronizationdisturbance observerchatteringadaptive soft variable structure con-trol
Publication Date：2025-05-30
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：9( 1048-1056 )