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.
作者
刘克毅
李渊
王飞
陈革新
王梦
刘银萍
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)
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)。
关键词
电液伺服泵控
PID
前馈
遗传算法
仿真分析
electro-hydraulic servo pump control
PID
feedforward
genetic algorithm
simulation analysis
