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A new control principle to increase the bandwidth of feed drives with large inertia ratio

  • Zheng Sun
  • Peter Zahn
  • Alexander Verl
  • Armin Lechler
ORIGINAL ARTICLE
  • 129 Downloads

Abstract

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.

Keywords

Control Feed drives Dynamics 

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Copyright information

© Springer-Verlag London 2016

Authors and Affiliations

  • Zheng Sun
    • 1
  • Peter Zahn
    • 1
  • Alexander Verl
    • 1
  • Armin Lechler
    • 1
  1. 1.Institute for Control Engineering of Machine Tools and Manufacturing Units (ISW)University of StuttgartStuttgartGermany

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