Experiments of Sliding Mode Control of Time-Delayed Dynamical Systems With Model Uncertainty

This paper presents simulation and experimental results of sliding mode control of nonlinear mechanical systems with time delay in the control loop. A flexible link oscillator made by Quanser is used as the target system. Geometric nonlinearity of the spring is included in the model, and the system is assumed to have parameter uncertainties. A sliding mode control with time delay is designed with the method of continuous time approximation. Both computer simulations and experiments show that the sliding mode control gives quite robust performance in the presence of model uncertainty.