摘要
通过对阀控缸电液伺服控制系统的理论分析,并根据实际操作经验,确定出系统位置模糊控制器的结构、输入输出变量、量化因子和比例因子,以及模糊推理法则,然后使用Matlab的Fuzzy工具箱,对系统进行建模和仿真计算,并可根据仿真结果在线调整量化因子参数,对系统进行优化,使系统性能达到最佳状态。由仿真分析结果得出,模糊控制相比于常规的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。
The theoretic analysis of the electro-hydraulic servo system was introduced, and the structure of the position fuzzy controller, input or output variable, the quantitative variable, the proportional variable and fuzzy reasoning theorem were determined based on the manipulative experiment. The model and simulation of the system were established with Fuzzy toolbox in Matlab. With the results of the simulation of the position and velocity, the quantitative variable parameters can be adjusted on-line, the system can be corrected, and the performance of the system can reach the optimization state. By comparing the experimental data obtained by conventional PID control, it is shown that this fuzzy control theory can improve the stability and dynamic characteristics of the controlled process, increases system control precision and anti-disturbance ability. It can also improve the adaptive ability to parameter＇s timevariability, finally achieves the development of high effective system.
出处
《机床与液压》
北大核心
2007年第11期68-70,共3页
Machine Tool & Hydraulics
基金
上海市教育委员会重点科研基金项目(编号05ZZ16)
