Predictive Control Algorithm of Melt Index for Polypropylene Reactor

doi:10.3969/j.issn.1006396X.2013.03.018

Journal of Petrochemical Universities ›› 2013, Vol. 26 ›› Issue (3): 79-82.DOI: 10.3969/j.issn.1006396X.2013.03.018

(Liaoning Shihua University, Fushun Liaoning 113001, China)

Received:2012-12-04 Published:2013-06-25 Online:2013-06-25

聚丙烯反应器熔融指数预测控制算法

王天培,翟春艳,刘慧哲,李书臣,苏成利

(辽宁石油化工大学,辽宁抚顺113001)

作者简介:王天培(1986灢),男,辽宁锦州市,在读硕士。
基金资助:
辽宁省科技攻关项目(2011216011)。

Abstract

Abstract: The melt index of soft model was established based on mechanism modeling method because melt index of polypropylene dualloop reactors is difficult to be measured online. The soft sensing model was turned into Hammerstein model as a prediction model in order to realize the prediction model. It is achieved the predictive control of polymerization reaction process based on this prediction model. Finally, the results of simulation illustrate the effectiveness of this method.

Key words: Melt index, , Soft sensing, , Hammerstein model, , Predictive control

摘要： 针对双环管聚丙烯反应器中的熔融指数难以在线测量的问题,采用机理建模方法建立熔融指数软测量模型。为了实现预测控制,将软测量模型转化为Hammerstein模型形式作为预测模型。并基于这个预测模型设计预测控制器,实现了聚合反应过程的熔融指数预测控制,仿真结果验证了该方法的有效性。

关键词: 熔融指数 , 软测量 , Hammerstein模型 , 预测控制

WANG Tianpei, ZHAI Chunyan, LIU Huizhe, LI Shuchen, SU Chengli. Predictive Control Algorithm of Melt Index for Polypropylene Reactor[J]. Journal of Petrochemical Universities, 2013, 26(3): 79-82.

王天培,翟春艳,刘慧哲,李书臣,苏成利. 聚丙烯反应器熔融指数预测控制算法[J]. 石油化工高等学校学报, 2013, 26(3): 79-82.

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