Wind disturbance resistance strategy for servo system based on backstepping robust control
A backstepping robust control strategy was proposed for the large antenna directional ener-gy launching weapon system which is easily affected by wind disturbances leading to control perfor-mance degradation.Firstly,the composition of wind disturbance was analyzed,and the dominant gust moment was modeled.Secondly,the backstepping controller was improved,and a new type of robust control term based on the sign function was added,which applied to the step response and effectively suppresses the influence of nonlinear random moments.Finally,the simulation experiments and the analysis of the results proved that the backstepping robust control strategy has a better rapidity and stability than the backstepping control strategy.
backstepping controlrobust controlwind disturbance resistanceservo system