直线电机进给系统轮廓误差预测控制方法及仿真研究  

Contour Error Predictive Control Methodology and Simulation of Linear Motor Feeding System

作　　者：杨泽青[1,2] 刘奇 薄敬东 刘丽冰 魏强[1,2] YANG Zeqing;LIU Qi;BO Jingdong;LIU Libing;WEI Qiang(School of Mechanical Engineering,Hebei University of Technology,Tianjin 300130,China;National Engineering Research Center for Technological Innovation Method and Tool,Tianjin 300401,China;School of Electrical Engineering,North China University of Science and Technology,Tangshan 063210,Hebei,China)

机构地区：[1]河北工业大学机械工程学院,天津300130 [2]国家技术创新方法与实施工具工程技术研究中心,天津300401 [3]华北理工大学电气工程学院,河北唐山063210

出　　处：《机械科学与技术》2023年第3期415-425,共11页Mechanical Science and Technology for Aerospace Engineering

基　　金：国家自然科学基金项目(52175461);天津市智能制造专项(20201199);河北省自然科学基金和重点基础研究专项项目(E2017202294);天津市自然科学基金项目(16JCYBJC19100)。

摘　　要：为提高永磁同步直线电机驱动的进给系统轮廓轨迹跟踪精度和系统的动态性能,提出了一种显式模型预测交叉耦合控制方法(Explicit model predictive cross-coupled control, EMPCCC)。该方法结合显式预测控制原理与交叉耦合控制思想,对单轴电流和速度信号进行多步预测,将轮廓误差作为反馈量来修正预测控制的给定轨迹,达到轮廓误差预测控制的目的。基于MATLAB/Simulink搭建仿真模型,结果表明,所提EMPCCC方法能快速实现不同转速波形的无超调跟踪控制,且可以实时估计并补偿轮廓误差,提升不同轨迹的轮廓精度。An explicit model predictive cross-coupled control(EMPCCC)method is proposed to improve the contour trajectory tracking accuracy and the dynamic performance of the system driven by a permanent magnet synchronous linear motor.The method combines the explicit predictive control with cross-coupling control to perform multi-step prediction of single-axis current and velocity signals,and use the contour error as a feedback quantity to correct the given trajectory of the predictive control to achieve the purpose of contour error predictive control.Finally,the simulation model is built based on MATLAB/Simulink,and the simulation results show that the EMPCCC method can quickly achieve overshoot-free tracking control of different speed waveforms,and it can estimate and compensate the contour error to improve the contour accuracy of different trajectories.

关 键 词：永磁同步直线电机 轮廓误差 模型预测控制 交叉耦合控制 

分 类 号：TG502.1[金属学及工艺—金属切削加工及机床]