A new control principle to increase the bandwidth of feed drives with large inertia ratio
A new control principle to increase the bandwidth of feed drives with large inertia ratio
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DOI：
10.1007/s00170-016-9895-3
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发表时间：
2017-07
期刊：
影响因子：
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通讯作者：
Zheng Sun;P. Zahn;A. Verl;A. Lechler
中科院分区：
文献类型：
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作者：
Zheng Sun;P. Zahn;A. Verl;A. Lechler
本文提出了一种新的控制原理，以提高带宽的进给驱动器没有任何额外的传感器或执行器。电机与工作台之间的速度差被视为机械振动并反馈到控制器。该原理适用于大惯量比的进给传动，可采用大螺距滚珠丝杠和小惯量高动态电机实现。通过李雅普诺夫判据得到了系统的稳定性条件。实验结果验证了该方法的有效性和鲁棒性。
This paper presents a new control principle to improve the bandwidth of feed drives without any additional sensor or actuator. The speed difference between the motor and the table is regarded as the mechanical vibration and fed back to the controller. The presented principle is feasible for feed drives with large inertia ratio, which can be achieved by utilizing a ball screw with high pitch and a high dynamic motor with small inertia. The stability condition is found through the Lyapunov criteria. The experimental results verify its effectiveness and robustness.