Reduced rate adaptive sliding mode control based robust position tracking for rotatory electro hydraulic servo system

This paper proposes a reduced rate adaptive sliding mode controller for an Electro-hydraulic servo system which considered as highly nonlinear and parametric uncertain system. To achieve asymptotic precision performance, the proposed scheme alleviates high frequency switching problem occurred in conventional sliding mode control it also relaxes the requirement of bounds of uncertainty. The proposed scheme mitigates the effect of uncertainty disturbances of large class. The stability of overall system is proved. Performance of the proposed scheme is validated by the Simulation.