基于模糊PID电液伺服控制系统的设计和仿真

Design and Simulation of Electro-hydraulic Servo System Based on Fuzzy-PID Control

传统PID控制在受到外界干扰时,容易产生过大超调,使得系统的动静态性能变差。采用PID控制和模糊控制相结合的模糊PID控制方法,在线调整PID参数。通过MATLAB/Simulink进行仿真,结果表明与传统的PID控制相比,该方法改善了系统的动静态性能,同时也提高了控制系统的抗干扰能力。

The traditional PID control will easily show inferior dynamic and static state performance with oversize adjustment in a disturbed condition. Using the fuzzy-PID control method which is combined the PID control and fuzzy control can adjust the parameters of the PID controller on-line. The result of simulation by the MATLAB/Simulink software shows that the fuzzy-PID control has a better dynamic and static state performance than traditional PID controller with higher anti-disturbtive capacity of the control system.