Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Motion Analysis and LQG/LTR Control of a Proportional Solenoid Valve

비례 솔레노이드 밸브의 운동해석 및 LQG/LTR 제어

  • Kim, Ki-Bum (Dept. of Mechatronics, Kumoh Nat'l Institute of Technology) ;
  • Kim, In-Soo (Dept. of Mechatronics, Kumoh Nat'l Institute of Technology) ;
  • Kim, Yeung-Shik (Dept. of Mechatronics, Kumoh Nat'l Institute of Technology) ;
  • Kim, Jun-Sik (Dept. of Intelligent Mechanical Engineering, Kumoh Nat'l Institute of Technology)
  • 김기범 (금오공과대학교 기전공학과) ;
  • 김인수 (금오공과대학교 기전공학과) ;
  • 김영식 (금오공과대학교 기전공학과) ;
  • 김준식 (금오공과대학교 지능기계공학과)
  • Received : 2011.05.26
  • Accepted : 2011.10.10
  • Published : 2011.12.01
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Abstract

In this study, dynamic analysis of a proportional solenoid valve is performed, and an LQG/LTR controller with an integrator is designed to control the proportional solenoid valve. The dynamic characteristic of a valve is identified using experimental data by employing the frequency-domain modeling technique. The purpose of LQG/LTR control with an integrator is to enhance the system response and to improve the tracking accuracy for a complex input signal. Experimental tests are performed to verify the performance of the controller, and the results prove the high performance of the controller.

본 논문에서는 솔레노이드 밸브의 동특성 분석 후, 적분기가 추가된 LQG/LTR 제어기를 설계한다. 솔레노이드 밸브의 동특성은 백색잡음 입력 신호에 대한 출력응답을 측정하여 얻은 주파수 응답과 커브피팅을 통해 규명된다. 본 논문에서 적분기가 추가된 LQG/LTR 제어의 목적은 시스템의 응답성을 향상시킬 뿐만 아니라 복잡한 입력신호에 대한 추종 능력도 향상시키는 것이다. 마지막으로 실험을 통해 제어기의 성능이 검증되며, 성능이 향상되었음을 확인할 수 있다.

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References

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