Abstract
A discrete output sliding control is studied for the discrete-time systems in this paper. This method carries insensitivity of the plant parameter variations and external disturbances. The switching surface design utilizes only the output and its delayed signals. And the closed-loop poles can be effectively assigned. A transformation method is given to convert the control system into a form of system with time-delayed inputs if necessary in certain cases. This method is applied to the position contact control of a high-speed rail system. Computer simulation is carried out to show the effectiveness of the proposed method.
