基于遗传算法前馈PID控制的电液伺服泵控系统性能研究  

Research on Performance of Electro-hydraulic Servo Pump Control System Based on Genetic Algorithm Feedforward PID Control

作　　者：刘克毅 李渊 王飞 陈革新[1,3] 王梦 刘银萍[1] 代丹丹 Liu Keyi;Li Yuan;Wang Fei;Chen Gexin;Wang Meng;Liu Yinping;Dai Dandan(School of Mechanical and Electrical Engineering,Xinjiang Institute of Engineering,Urumqi 830023,China;School of Mechanical and Aerospace Engineering,Jilin University,Changchun 130022,China;School of Mechanical Engineering,Yanshan University,Qinhuangdao 066004,China)

机构地区：[1]新疆工程学院机电工程学院,乌鲁木齐830023 [2]吉林大学机械与航空航天工程学院,长春130022 [3]燕山大学机械工程学院,河北秦皇岛066004

出　　处：《煤矿机械》2024年第2期37-41,共5页Coal Mine Machinery

基　　金：新疆维吾尔自治区自然科学基金资助项目(2022D01A51,2022D01B135,2022D01A244)。

摘　　要：电液伺服泵控技术在液压支架、采煤机、掘进机、挖掘机等煤矿装备中得到了广泛应用,但在复杂工况下,其动作响应性和准确性受到较大影响,需进一步提高。在数学模型的基础上建立了关键部件仿真模型和系统模型,提出了基于遗传算法的前馈PID控制策略。利用MATLAB软件进行仿真,结果显示,阶跃压力信号响应曲线的稳态误差为0.1 MPa、响应时间为0.5 s,正弦压力信号跟随曲线的最大误差为0.02 MPa,较经典PID控制缩短了响应时间,降低了误差,整体性能得到提升。The electro-hydraulic servo pump control technology has been widely used in coal mining equipment such as hydraulic support,shearer,roadheader,excavator,etc.However,in complex working conditions,its response and accuracy are greatly affected,and further improvement is needed.Based on the mathematical model,a simulation model and system model of key components were established,and a feedforward PID control strategy based on genetic algorithm was proposed.Simulation were conducted by using MATLAB software.The results show that the steady-state error of the step pressure signal response curve is 0.1 MPa with a corresponding time of 0.5 s,and the maximum error of the sine pressure signal following curve is 0.02 MPa.Compared with classical PID control,it shortens the corresponding time,reduces errors,and improves overall performance.

关 键 词：电液伺服泵控 PID 前馈 遗传算法 仿真分析 

分 类 号：TH137[机械工程—机械制造及自动化]