数控机床伺服驱动系统的多电机同步控制策略

Multi-Motor Synchronization Control Strategy for Servo Drive System of CNC Machine Tools

以数控机床伺服驱动系统的多电机同步控制为研究对象,提出了一种基于多交流伺服电机的同步控制策略。此策略将虚拟主轴和偏差耦合的同步控制方式相结合,并加入反向传播神经网络比例积分微分控制以及自适应鲁棒控制。通过搭建Matlab/Simulink仿真平台模拟了系统的运行状态。结果表明,所提同步控制策略具有良好的同步性能和伺服效果,在提高多电机联动系统的控制精度和响应速度、减少摩擦和齿隙的影响以及增强系统鲁棒性方面表现出优越性。

Taking the multi-motor synchronization control of computer numerical control machine tool servo drive system as the research object,a synchronization control strategy based on multi alternating current servo motors is proposed.This strategy combines a virtual spindle and a deviation-coupled synchronous control approach with back propagation neural network proportional integral derivative control as well as adaptive robust control.The system operation state is simulated by building a Matlab/Simulink simulation platform.The simulation results show that the proposed synchronous control strategy has good synchronous performance and servo effect,and shows superiority in improving the control accuracy and response speed of the multi-motor linkage system,reducing the influence of friction and backlash,and enhancing the robustness of the system.