AN OPTIMAL VARIABLE STRUCTURE CONTROL WITH INTEGRAL COMPENSATION FOR ELECTROHYDRAULIC POSITION SERVO CONTROL-SYSTEMS

Abstract

An approach employing variable structure control with integral compensation is presented for an electrohydraulic position servo control system to achieve accurate servo tracking in the presence of load disturbance and plant parameter variation. Simulations show that the proposed approach may give a rather accurate servo-tracking result and is fairly robust to plant parameter variation and load disturbance.