摘要:In this paper, a sliding mode based control concept for networked control systems in the presence of variable time delays and external perturbations is proposed. The control concept consists of a buffering mechanism and a discrete time integral sliding mode based control law. This setting offers the possibility to use discrete-time sliding mode control techniques designed for relative degree one systems. As a consequence, networked control algorithms can be developed based on recent results from this active field of research. Using a discretized version of the super twisting algorithm, which is obtained by the so-called matching approach, increases the accuracy due to the absence of discretization chattering. The effectiveness of the proposed control strategy is demonstrated by means of laboratory experiments.
关键词:KeywordsTime-varying delaySliding-mode controlDiscretizationClosed-loop control