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

The Korean Society of Mechanical Engineers (대한기계학회)
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Controller Parameters Design of Direct Drive Servo Valve Using Genetic Algorithm and Complex Method

유전자 알고리즘과 콤플렉스법에 의한 직접구동형 서보밸브의 제어기 상수값 설계

  • 이성래 (건양대학교 기계공학과)
  • Received : 2012.07.24
  • Accepted : 2013.01.23
  • Published : 2013.04.01
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Abstract

The control system of a direct drive servo valve is a nonlinear system, and the flow force effect on the spool motion is significant and dependent on the load pressure. To satisfy the control system design requirements, the optimal parameters of the lead-lag controller and the derivative feedback controller are searched for using a genetic algorithm and a complex constrained direct search type method. The obtained controller parameters successfully perform their role to satisfy the control system design requirements.

직접구동형 서보밸브의 제어시스템은 비선형적이며 밸브스풀에 미치는 유체력의 영향은 매우 크고 부하압력의 크기에 좌우된다. 제어시스템의 설계요구조건을 만족시키기 위해, 제약직접탐색방법인 유전자 알고리즘과 콤플렉스법을 적절히 활용하여 진상-지상제어기 및 미분피드백제어기의 최적 상수값을 탐색하였다. 최적 제어기 상수값을 대입하여 제어시스템을 시뮬레이션한 결과 설계요구조건을 만족하였다.

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References

  1. Lee, S. R., Choi, H. Y. and Moon, E. J., 2002, "Classical Controller Design of Direct Drive Servo Valve Using Analytical Bode Method," Trans. Korean Soc. Mech. Eng. A, Vol. 26, No. 4, pp. 754-763. https://doi.org/10.3795/KSME-A.2002.26.4.754
  2. Lee, S. R., 2004, "Lead-Lag Controller Design of Direct Drive Servo Valve Using Complex Method," Trans. Korean Soc. Mech. Eng. A, Vol. 28, No. 11, pp. 1719-1726. https://doi.org/10.3795/KSME-A.2004.28.11.1719
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