드라이브 ㆍ 컨트롤 (Journal of Drive and Control)

  • 제10권4호
  • /
  • Pages.22-28
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  • 2013
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  • 2671-7972(pISSN)
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  • 2671-7980(eISSN)
유공압건설기계학회 (The Korean Society for Fluid Power and Construction Equipment)
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전기 피드백 직동형 서보 밸브에 관한 역 분석

Reverse Analysis on a Direct Dive Servo Valve with Electric Feedback

  • Kim, S.D. (Department of Intelligent Mechanical Engineering, Kumoh National Institute of Technology) ;
  • Ahn, H.W (School of Electronic Engineering, Kumoh National Institute of Technology)
  • 투고 : 2013.10.30
  • 심사 : 2013.11.29
  • 발행 : 2013.12.01
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초록

Mechanical and electrical properties of a DDV(Direct Drive servo Valve) with electric feedback are analysed via reverse analysis technique in this work. The DDV is disassembled and mechanical parameters, such as spool mass, spring stiffness and port size are identified. The servo amplifier, which is built in the valve, is reversely analysed and the control scheme and gains for several control actions are also identified. The electrical feedback for spool displacement improves much better the valve performance, such as hysteresis and dynamic bandwidth frequency, than an ordinary mechanical feedback valve. Integrating control action with very large gain was adopted in the valve amplifier, and it seemed to give high performance.

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참고문헌

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