基于指数趋近率的液压机泵控伺服系统滑模控制
Sliding mode control of hydraulic pump control servo system based on exponential reaching rate
张新文 1和豪涛1
作者信息
- 1. 河南交通职业技术学院 汽车学院,河南 郑州 450005
- 折叠
摘要
滑模控制方法具备较强鲁棒性,控制器结构也较简单,被广泛应用于泵控电液伺服液压系统上.在分析泵控系统原理的基础上,为克服传统PID控制很难抵抗较强外部干扰力的缺点,泵控伺服系统建立指数趋近律滑模控制器,建立泵控伺服系统MATLAB/Simulink仿真.研究结果表明:正弦信号跟踪下,滑模控制最大稳态跟踪误差与PID相比降低83.4％,同时控制器IMSE指标相对PID控制器发生了显著降低.该研究有助于提高液压机运行效率,对提高产品质量具有一定的指导意义.
Abstract
The sliding mode control method has the advantages of strong robustness and simple controller structure,and is widely used in pump-controlled electro-hydraulic servo hydraulic system. On the basis of analyzing the control principle of the pump control system,in order to improve the traditional PID control is difficult to resist the strong external interference force,the exponential reaching law sliding mode controller is established in the pump control servo system. Establish MATLAB/Simulink simulation of pump control servo system. The co-simulation results show that the maximum steady-state tracking error of sliding mode control is reduced by 83.4％ compared with PID under sinusoidal signal tracking,and the IMSE index phase of controller is significantly reduced. The research is helpful to improve the operation efficiency of hydraulic press and has a certain theoretical support significance for ensuring the quality of forging.
关键词
液压机/泵控伺服系统/滑模控制/指数趋近率/信号跟踪Key words
Hydraulic press/Pump control servo system/Sliding mode control/Index reaching rate/Signal tracking引用本文复制引用
基金项目
河南省高等职业学校青年骨干教师培养计划(2019GZGG035)
出版年
2024
NETL
NSTL
万方数据