Optimal Robust Control of DC Servo Drive:a Comparative Study

In this paper elimination of the severe load disturbance exerted on a DC servo drive using Optimal Integral Sliding Mode Control (OISMC) method is addressed. The performance of the proposed algorithm is compared with Optimal Integral Tracking Control (OITC) and Lyapunovbased Model Reference Adaptive Control (LMRAC). Simulation results demonstrate the superior performance of the OISMC algorithm fulfilling the aim of this research among the studied control strategies. According to the achievements of this study the ability of the proposed method as an effective control strategy for the precise servo drive speed or position control purposes, imposed to harsh load disturbances is obvious.