A New Control Algorithm for the Direct Digital Control Loops of Sintering Processes

소결공장의 계산기 제어를 위한 새로운 제어 앨고리

  • 권욱현 (서울대 공대 제어계측공학과) ;
  • 고명삼 (서울대 공대 제어계측공학과) ;
  • 이상정 (서울대 대학원 제어계측공학과) ;
  • 김점근 (서울대 대학원 제어계측공학과) ;
  • 백기남 (포항제철연구소) ;
  • 김대원 (포항제철연구소)
  • Published : 1987.01.01

Abstract

In this paper, a state-space model of the burnthrough point control system of an industrial sintering process is derived. The model is then used in designing a self-tuning controller which consists of the receding horizon control law and a least-squares prediction algorithm with covariance resetting. By applying this controller to POSCO IV sintering process, satisfactory experimental results have been obtained. This paper presents some of these real-time experimental results and analyzes the control performance through productivity, operation indices, quality, sintered material composition, etc. From these experimental results and simulation results, the validity of the model can be observed. Moreover, the properties of the controller, e.g. stability, steady-state error, are shown based on the model.

Keywords