机构地区: 广东工业大学自动化学院
出 处: 《组合机床与自动化加工技术》 2010年第12期80-82,共3页
摘 要: 直线伺服系统中,负载扰动、机械惯性及两轴响应速度不匹配会影响轮廓加工精度,如何提高两轴运动控制系统的协调性成为亟待解决的问题。文章在介绍永磁同步电机(PMSM)数学模型的基础上,详细分析了系统轮廓误差定义与变增益交叉耦合控制算法,最后在Matlab/Simulink环境下搭建了两轴变增益交叉耦合控制系统仿真模型,并对结果进行了分析。仿真结果表明,变增益交叉耦合控制算法较传统控制算法有效提高了系统的快速性和鲁棒性,并减小了系统的轮廓误差。 In linear servo system,the mismatch of load disturbance,mechanical inertial and response speed of dual-axis has a large influence on contour error when processing part contour.So how improve the coordination of dual-axis motion control system become a serious problem.In this paper,the mathematical model of the PMSM is analyzed,then the definition of contour error and variable-gain cross-coupled control algorithm are dentally given,and finally set up a simulation model of dual-axis variable-gain cross-coupled control system.The simulation results indicate that variable-gain Cross-coupled Controller effectively improves speediness and robustness of system,and reduce contour error of the system.