飞机防滑刹车系统控制器的设计及仿真

Design and Simulation Research of Aircraft Anti-skid Braking System Controller

摘要:

飞机防滑刹车系统具有复杂性、非线性以及不确定性的特点,难以建立其精确数学模型；模糊控制具有不依赖被控对象模型的特点,PID控制具有控制精度高的特点,将模糊控制和PID控制结合,提出了一种模糊PI+模糊ID控制律的设计方法,利用MATLAB软件中的SIMULINK仿真工具,对飞机防滑刹车系统的智能控制算法进行了仿真,然后将仿真结果与一般的模糊控制的仿真结果进行了比较分析,结果表明模糊PI+模糊ID比一般模糊控制刹车时间缩短了1.7 s,距离缩短了80 m,能较好地改善刹车系统的性能,提高防滑刹车系统的效率。

Abstract:

Aircraft anti-skid braking system is complicated, nonlinear and uncertain.It is difficult to build the exact mathematics model.Fuzzy control does not depend on the object model.PID control has the characteristics of high control precision.A fuzzy PI and fuzzy ID algorithm has been proposed. This algorithm combine the merits of fuzzy control and PID control.improve the precision and robustness of fuzzy control, improve the performance of braking system.Intelligent control algorithm for aircraft anti-skid braking system are simulated in MATLAB software.Then the simulation results have been analysis.The results show that Fuzzy PI and fuzzy ID algorithm use less time by 1.7 seconds and less distance by 80 meters to stop the aircraft than fuzzy control ,it can improve the performance and efficiency of braking system.