基于速度模式的数控系统高速高精度控制研究

Research on NC System High Speed and High Precision Based on Speed Mode

利用PCL-726和PCL-833卡实现伺服电机速度控制方式下的电压输出和反馈脉冲采集。采用基于积分分离的数字PID控制方法,以滞留脉冲为控制对象调整电机转速,保证伺服电机在高速运行时具有良好的跟踪性能。实验结果表明该方法可以有效地降低伺服电机的滞留脉冲数。

PCL-726 and PCL-833 card was used to provide voltage and count feedback pulses in the velocity servo control mode. The system employs integration separation control arithmetic of digital PID to control the speed of servo motor with tracking error pulses as the control object, in order to ensure good tracking performance in the process with high speed. According to practical test, the result indicates that this method can limit the tracking error pulses of servo motor effectively.