反舰导弹的模糊变结构控制设计

Fuzzy Variable Structure Control Design for Anti-Ship Missiles

为了削弱变结构控制中的颤振现象,采用了模糊变结构控制方法,并将该方法应用于反舰导弹的过载控制系统的设计中。首先,利用变结构控制方法设计了导弹的控制律。由于变结构控制中的切换控制项会引起颤振现象,因此采用模糊控制器对其进行调整,从而构建了一种模糊变结构控制器。然后,举例进行仿真,仿真中分别采用了传统变结构控制方法和模糊变结构控制方法设计过载控制系统。仿真结果的对比显示了模糊变结构控制方法的优越性。

In order to reduce chattering phenomenon of variable structure control, a fuzzy variable structure control method is adopted and applied in the overload control system design of anti-ship missiles. Firstly, the missiles' control law is designed by the variable structure control method. Because the switching control term of variable structure control can cause the chattering phenomenon, a fuzzy controller is adopted to adjust it; thus a fuzzy variable structure controller is constructed. Then simulations to design the overload control system are conducted, in which the conventional variable structure control method and the fuzzy variable structure control method are applied respectively. The comparing of simulation results shows the superiority of the latter.