基于模糊PID的飞机液压助力器系统动态仿真  

Dynamic Simulation for Airplane Hydraulic Booster System by Fuzzy + PID Control

作　　者：熊宽[1] 王平军[1] 李昌范[1] 李彦波[1] 

机构地区：[1]空军工程大学航空航天工程学院,西安710038

出　　处：《组合机床与自动化加工技术》2013年第5期84-86,90,共4页Modular Machine Tool & Automatic Manufacturing Technique

摘　　要：基于控制理论建立了飞机液压助力器的数学模型,针对被控对象非线性和时变性的特点,运用模糊控制理论,设计了模糊+PID控制器,并将其与常规PID控制、P控制进行比较论证,在单位阶跃信号的作用下,运用Simulink对系统模型进行仿真。结果表明,模糊+PID控制与常规PID控制、P控制相比,具有实时性较好、响应速度较快和抗干扰能力较强等特点,具有模糊控制和PID控制的双重优点,提高了系统的综合性能,获得了良好的控制效果。The model of Airplane Hydraulic booster is established based on control theories. Considering its nonlinear and intermittence, a Fuzzy ＋ PID controller is designed, then it is compared with conven- tional PID control and P control, at last system simulation is conducted with Simulink under the effect of unit step signal. The result shows that Fuzzy ＋ PID control has better capability in speediness, quick re- sponse and anti -jamming than conventional PID control and P control, it has dual advantages of fuzzy control and PID control, which raises the combination property of the system and gets a good control re- sult.

关 键 词：液压助力器 模糊比例-积分-微分控制器 系统仿真 

分 类 号：TH165[机械工程—机械制造及自动化] TG65[金属学及工艺—金属切削加工及机床]