The analysis of sliding mode control features in variable structure system with saturation

The application of variable structure system with sliding mode and saturation in a task of position control of second order dynamic object is considered in this paper. The features of system behaviour at different values of control law coefficients are analyzed. The new conditions of a sliding mode existence in the given areas of a phase plane are formulated and strictly proved. The control systems parameters ensuring the greatest possible fast-action and high dynamic precision are determined. The received conclusions are confirmed by results of control system numerical simulation.