Design of a Sliding Mode Control with a Nonlinear Continuous Time-Varying Switching Surface
A new sliding mode controller design approach for second-order systems is proposed that varies the switching surface in a nonlinear continuous time-varying fashion. The sliding mode control system, which the slope and intercept of switching surface changes continuously, can improve the system performance in terms of a eliminating in the reaching time process, robustness to parameters uncertainties and disturbance. The computer simulation results show the validity of the method.
G. Li and L. H. Liu, "Design of a Sliding Mode Control with a Nonlinear Continuous Time-Varying Switching Surface", Applied Mechanics and Materials, Vols. 128-129, pp. 1399-1404, 2012