基于动态信息的过渡过程辨识方法

摘要/Abstract

摘要： 提出了一种基于动态信息的过渡过程识别方法.给出了过渡过程的具体定义，描述了过渡过程相对于稳态过程的独特性质.考虑到多工况过程存在较强的动态特性，引入动态交互信息概念，运用动态交互信息的方法，可以较好地反映过渡过程与稳态工况之间的差异.通过算例和TE(Tennessee Eastman)过程仿真平台对算法进行验证的结果表明，所提出的方法相对于传统方法在过渡过程识别和监控中取得了更好的效果.

关键词: , 过渡过程, 多工况过程识别, 交互信息, 动态交互信息

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

中图分类号:

TP 274

何雨辰,葛志强,宋执环 . 基于动态信息的过渡过程辨识方法[J]. 上海交通大学学报（自然版）, 2017, 51(6): 686-692.

HE Yuchen,GE Zhiqiang,SONG Zhihuan. A New Method for Transition Identification by
Using Dynamic Information[J]. Journal of Shanghai Jiaotong University, 2017, 51(6): 686-692.

参考文献

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