摘要
压铸机是一种大滞后、非线性的复杂系统,很难通过固定PID参数达到良好的控制效果。为此,在系统中引入适应性更好、鲁棒性更强的模糊PID。分析了传统PID和模糊PID的区别,建立了压铸机压射系统的物理和数学模型,通过MATLAB/simulink进行了验证。结果表明:模糊PID控制效果较常规PID控制效果更好。
As the large-lag,non-linear and complex system,it is difficult for die-casting machine to achieve good control effect by fixing the PID parameters.Accordingly,a fuzzy PID with better adaptability and stronger robustness is introduced into the system.The differences between traditional PID and fuzzy PID are analyzed.The physical model and mathematical model of the die casting machine injection system are established.Verification is performed by MATLAB/Simulink with the results indicating that the effect of fuzzy PID control is better than that of conventional one.
作者
孔令成
陈若愚
KONG Lingcheng;CHEN Ruoyu(School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China)
出处
《机械制造与自动化》
2021年第4期14-16,共3页
Machine Building & Automation
基金
国家科技重大专项(2019ZX04029-001)。
