华南理工大学学报(自然科学版) ›› 2006, Vol. 34 ›› Issue (1): 52-56.

• 电子、通信与自动控制 • 上一篇    下一篇

炼铜转炉粗铜成分混沌时问序列的软测量模型及应用

鄂加强 王耀南 龚金科 李春生 梅炽   

  1. 1.湖南大学 电气与信息工程学院,湖南 长沙 410082;2.湖南大学 机械与汽车工程学院,湖南 长沙 410082;3.中南大学 能源与动力工程学院,湖南 长沙 410083
  • 收稿日期:2005-04-06 出版日期:2006-01-25 发布日期:2006-01-25
  • 通信作者: 鄂加强(1972-),男,博士后,主要从事智能信息融合处理方法及其应用方面的研究 E-mail:ejiaqiang@126.com
  • 作者简介:鄂加强(1972-),男,博士后,主要从事智能信息融合处理方法及其应用方面的研究
  • 基金资助:

    国家自然科学基金资助项目(60375001)

Soft-Sensing Model of Chaos Time Series of Crude Copper Composition in Copper Convertor and Its Application

E Jia-qiang  Wang Yao-nan Gong Jin-ke  Li Chun-sheng  Mei Chi   

  1. 1.College of Electrical and Informational Engineering,Hunan Univ.,Changsha 410082,Hunan,China;2.College of Mechanical and Automotive Engineering,Hunan Univ.,Changsha 410082,Hunan,China;3.School of Energy and Power Engineering.Central South Univ.,Changsha 410083,Hunan,China
  • Received:2005-04-06 Online:2006-01-25 Published:2006-01-25
  • Contact: 鄂加强(1972-),男,博士后,主要从事智能信息融合处理方法及其应用方面的研究 E-mail:ejiaqiang@126.com
  • About author:鄂加强(1972-),男,博士后,主要从事智能信息融合处理方法及其应用方面的研究
  • Supported by:

    国家自然科学基金资助项目(60375001)

摘要: 将转炉产粗铜成分的以往化验数据作为二次变量,化验数据严重滞后的当前炉次粗铜成分作为主导变量,并以延迟时间τ=2(炉次)将转炉粗铜成分时间序列分成两个子时间序列,采用重构相空间理论、最大Lyapunov指数方法和样本及时更新的办法,建立了一种仅对当前炉次的炼铜转炉粗铜成分进行软测量的混沌时间序列软测量模型.实验结果表明,该软测量模型能快速得出转炉当前炉次的粗铜成分数据,具有很高的精度.

关键词: 炼铜转炉, 成分测量, 混沌时间序列, Lyapunov指数, 软测量, 重构相空间理论

Abstract:

A new soft-sensing model of current crude copper composition based on the chaos time series of foregone crude copper composition was established by using the phase-space reconstruction theory and the method of maxi-mum Lyapunov exponent and by updating samples in time.In this soft-sensing model,foregoing assay data of crude copper composition were regarded as the secondary variables,the assay data of crude copper composition in curent copper convertor were taken as the primary variables because of its great delay,and the chaos time series of fore-gone crude copper composition was divided into two sub-series via the time lag τ=2 furnace orders.Experimental results indicate that the crude copper composition in curent copper convertor can be quickly and precisely deter-mined by the proposed soft-sensing model.

Key words: copper convertor, composition measurement, chaos time series, Lyapunov exponent, soft sensing, phase-reconstruction theory