导弹电液伺服机构的变论域自适应模糊滑模控制

为减弱导弹电液伺服机构位置跟踪滑模控制(SMC)的抖振,提出了一种基于变论域自适应模糊滑模控制(AFSMC)方法。通过在线调节输入变量论域和规则后件隶属度函数,可在不影响滑模变结构控制鲁棒性的情况下有效削弱滑模切换控制产生的抖振。给出了相应的控制律。设计的控制系统具有良好的跟踪性能,提高了电液伺服机构的跟踪控制精度。仿真实验结果验证了该控制方案的有效性。

Variable Universe Adaptive Fuzzy Sliding Mode Control for Missile Electro-Hydraulic Servo Mechanism

To reduce the chattering in the position tracking control of a missile electro-hydraulic servo mechanism,a variable universe adaptive fuzzy sliding mode control was put forward in this paper.The high frequency chattering in the control input caused by sliding mode switch control were effectively minimized by adjusting the universes of input variables and the membership fuzzy controller of conclusion part in rules on-line while the strong robustness of sliding variable control was not affected.The control law designed was presented,which was simple.The control system had characteristics of good ability to trace and improved tracking precision of missile electro-hydraulic servo mechanism.The simulation results showed that this method was effective.