Journal of the Korean Institute of Intelligent Systems (한국지능시스템학회논문지)

Korean Institute of Intelligent Systems (한국지능시스템학회)
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Weighing control of alloy metal for electric arc furnace by fuzzy system

퍼지 시스템을 사용한 전기로 합금철 계량 제어

  • 이기범 (포항산업과학연구원 부품자동화연구실) ;
  • 허정헌 (포항산업과학연구원 부품자동화연구실) ;
  • 주문갑 (부경대학교 전자컴퓨터정보통신공학부)
  • Published : 2008.12.25
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Abstract

A fuzzy control algorithm is used to weigh alloy metal into electric arc furnace and implemented by using ladder program for programmable logic controller, where weight error and its derivative are used for input variables and vibration amplitude of alloy bin is used for output variable. Proposed fuzzy control algorithm is applied to the plant and results in higher measuring accuracy as well as faster measuring term than conventional on-off control system.

본 논문에서는 전기로에 투입되는 합금철의 중량을 보다 정밀하게 제어하기 위하여 Mamdani 타입의 퍼지 알고리듬을 적용하였다. 고안된 퍼지 시스템은 중량 오차 및 변화를 입력으로 하고 합금철 투입 바이브레이터의 진동의 크기를 출력으로 하며, programmable logic controller의 래더 프로그램으로 구현하여 현장에 적용하였다. 현장에 적용된 퍼지 제어 알고리듬은 기존의 온-오프 제어기에 비하여 전기로에 투입되는 합금철의 계량 정밀도를 높였을 뿐 아니라, 합금철 투입 시간도 크게 단축시켰다.

Keywords

References

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