Journal of Shanghai Jiaotong University ›› 2017, Vol. 51 ›› Issue (6): 686-692.

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 A New Method for Transition Identification by
 Using Dynamic Information

 HE Yuchen,GE Zhiqiang,SONG Zhihuan   

  1.  College of Control Science and Engineering, Zhejiang University, Hangzhou 310027, China
  • Online:2017-06-30 Published:2017-06-30
  • Supported by:
     

Abstract:  An identification method is proposed for transitional processes by using  dynamic information. A definition for the transitional process is presented here to make a brief description of the characteristics of transition. Because of the existence of dynamic behavior in industrial processes, a dynamic mutual information (DMI) method is proposed in this paper. The differences in statistical characteristics between transition and stable modes can then be well revealed through the DMI algorithm. Extensive tests are carried out both on a numerical example and Tennessee Eastman (TE) benchmark process to validate the effectiveness of the proposed method. The simulation results show the superiority of the proposed method in transition identification and fault detection.

Key words:  transition process, multimode transition identification, mutual information, dynamic mutual information

CLC Number: