Linear Motor Current Control for a Force Generator

운동용 힘 발생기를 위한 리니어 모터의 전류제어

  • Lee, Se-Han (School of Mechanical Engineering, Kyungnam University)
  • Received : 2014.12.22
  • Accepted : 2015.01.23
  • Published : 2015.02.28


This research dealt with a two-degree-of-freedom controller which was used for 2-dimensional force generator based on an linear motor. The gain margin of the controller may be reduced when the time constant is near to the sampling time of a discrete controller. In case of low gain controller, it cannot satisfy the control performance. A two-degree-of-freedom controller based on PI-control was proposed. It can manage performance and stability respectively. It also had a kind of a feed-forward control. This scheme can not only lessen gain of conventional PI controller in order to stability but also obtain high tracking performance.



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