Journal of Institute of Control, Robotics and Systems (제어로봇시스템학회논문지)

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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Sequential Loop Closing Identification of Hammerstein Models for Multiple-Input Multiple-Output Processes

다변수 Hammerstein 공정의 순차 확인법

  • 박호철 (경북대학교 화학공학과) ;
  • 구도균 (현대 엔지니어링 공정안전부) ;
  • 이문용 (영남대학교 응용화학공학부) ;
  • 이지태 (경북대학교 화학공학과)
  • Published : 2004.12.01
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Abstract

A lot of industrial chemical processes contain certain input nonlinearities even though they are controlled by several linear controllers. Here we investigate a sequential loop closing identification method for MIMO Hammerstein nonlinear processes with diagonal nonlinearities. The proposed method separates the identification of the nonlinear static function from that of the linear subsystem by using a relay feedback test and a triangular type signal test. From 2 n activations for n n MIMO nonlinear processes, we sequentially identify the whole range of the nonlinear static function as well as the transfer function matrix of the linear subsystem.

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References

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