基于MATLAB的电液伺服系统自适应模糊PID仿真

Self-adapting Fuzzy-PID simulation of the electro-hydraulic servo system based on Matlab

将自适应模糊PID的控制方法应用于电液伺服控制系统中,通过使用MATLAB的FUZZY工具箱对系统建模和仿真计算,并可根据仿真结果在线调整PID参数,对系统进行校正．这种自适应模糊PID控制相比于常规的PID控制,可以改善被控过程的稳态和动态性能,提高系统控制精度、抗干扰能力,以及对参数时变的适应能力,最终实现高效的系统开发．

An adaptive Fuzzy-PID control is applied in electro-hydraulic servo system. The model and simulation of the system are established with FUZZY TOOLBOX in Matlab. With the results of the simulation, the PID parameters are adjusted on-line and then the system is corrected. Compared with conventional PID control, this adaptive FUZZY-PID control can improve the stability and dynamic characteristics of the controlled process, increase system control precision and anti-disturbance ability. It may also improve the adaptivity ability to parameter＇s time-variability and finally achieve the high effective development of system.