Three-step Nonlinear Control Method for Servo Motion System
In order to improve the transient performance of the servo motion system,speed up the response speed of the system,and obtain better trajectory tracking effects,this paper proposes a three-step nonlinear control method for the servo motion system.First,mathematically model the servo motion system,and then assume that the servo motion system reaches a stable state to obtain a quasi-steady-state control law;secondly,consider the dynamic changes of the reference target and design a feedforward control law;then use the relationship between the reference target and the actual output The difference design error feedback control law.Then Lyapunov's theorem is used to analyze the stability of the three-step nonlinear control system.Finally,the effectiveness of the proposed method was verified through simulation.