Journal of Petrochemical Universities

Journal of Petrochemical Universities ›› 2012, Vol. 25 ›› Issue (3): 79-82.DOI: 10.3969/j.issn.1006-396X.2012.03.018

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The Application of an Improved Difference Control Method in  Temperatures Control of Ethylene Cracking Furnace

  

  1. School of Information and Control Engineering, Liaoning Shihua University,Fushun Liaoning 113001, P.R.China
  • Received:2012-03-30 Revised:1900-01-01 Published:2012-06-25 Online:2012-06-25

改进的差动算法在乙烯裂解炉支管温度控制中的应用

王宗宁,李奇安,李悦,单海欧   

  1. (辽宁石油化工大学信息与控制工程学院,辽宁抚顺113001)
  • 作者简介:王宗宁(1987―),男,宁夏吴忠市,在读硕士
  • 基金资助:
    辽宁省教育厅资助项目(2007T103)

Abstract: Passes temperature balance system of ethylene cracking furnace is a multivariable, nonlinear, strong coupling complicated process. Under the circumstances of multi-passes, the complexity and uncertainty of system could be increased by using difference control method. In view of the above problems, an improved difference control scheme was proposed, which processes all the passes as a whole. This scheme avoided employing the difference control technique reiteratively. The controller structure is simple and easy to be implemented. Simulation experiment shows that the improved difference control method is reasonable and has good tracking performance.

Key words: Difference control method, Temperature control, Passes balance, Ethylene cracking furnace

摘要: 乙烯裂解炉支管温度平衡系统是一个多变量、非线性、强耦合的复杂过程,在多支路的情况下,运用差动法会增加系统的复杂性和不确定性。针对上述问题提出一种改进的差动控制方案,通过把多个支管作为一个整体来处理,不仅避免了重复运用差动法,而且控制器结构简单,容易实现。仿真实验表明了控制方案合理、有着较好的跟踪性能。

关键词: 差动法 , 温度控制 , 支路平衡 , 乙烯裂解炉

Cite this article

WANG Zong-ning,LI Qi-an,LI Yue,SHAN Hai-ou. The Application of an Improved Difference Control Method in  Temperatures Control of Ethylene Cracking Furnace[J]. Journal of Petrochemical Universities, 2012, 25(3): 79-82.

王宗宁,李奇安,李悦,单海欧. 改进的差动算法在乙烯裂解炉支管温度控制中的应用[J]. 石油化工高等学校学报, 2012, 25(3): 79-82.