摘要
介绍了60 MN水压机电液伺服系统的组成及工作原理,针对电液位置伺服系统负载变化的复杂性,在分析了负载特性的基础上,提出了自抗扰的控制策略以提高电液伺服系统的可控性和鲁棒性,并对自抗扰控制器进行了结构分析与设计。最后采用MATLAB/Simulink建立了水压机电液伺服控制系统整体仿真模型,对不同负载变化频率下的自抗扰控制效果进行了仿真研究,结果表明:与PID控制器相比,自抗扰控制不仅提高了电液位置伺服系统的响应速度,有效地降低了系统的超调量,而且增强了控制系统的鲁棒性。
It was introduced electro hydraulic servo system composition and working principle of 60 MN hydraulic press. Considering the complexity of load change in the electro hydraulic servo system,based on the analysis of load characteristics,the active disturbance rejection control（ ADRC） strategy was put forward to improve its controllability and robustness. Then active disturbance rejection controller was analyzed and designed. Finally,the whole simulation model of electro hydraulic servo control system was established by MATLAB /Simulink,and the effect of ADRC was studied under different load changing frequencyies. The study shows that compared with the PID controller,not only the response speed of electro-hydraulic servo system is improved and the overshoot of system is effectively reduced,but also robustness of system is enhanced.
出处
《锻压技术》
CAS
CSCD
北大核心
2015年第9期74-79,共6页
Forging & Stamping Technology
基金
国家科技重大专项(2013ZX04003-031)
秦皇岛市科学技术研究与发展计划项目(201502A048)
燕山大学博士基金资助项目(B930)
河北省自然科学基金青年科学基金资助项目(E2014203247)
关键词
60
MN水压机
电液伺服系统
负载特性
自抗扰控制
60 MN hydraulic press
electro hydraulic servo system
load characteristics
active disturbance rejection control
