[1]苏成利,施惠元,李 平,等.增量式多变量预测函数控制及其在气体 分馏装置中的应用[J].南京理工大学学报(自然科学版),2015,39(05):625.
 Su Chengli,Shi Huiyuan,Li Ping,et al.Incremental multivariable predictive functional control and its application in gas fractionation unit[J].Journal of Nanjing University of Science and Technology,2015,39(05):625.
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增量式多变量预测函数控制及其在气体 分馏装置中的应用
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
39卷
期数:
2015年05期
页码:
625
栏目:
出版日期:
2015-10-31

文章信息/Info

Title:
Incremental multivariable predictive functional control and its application in gas fractionation unit
作者:
苏成利1施惠元1李 平1王 倩1许 娜2
1.辽宁石油化工大学 信息与控制工程学院,辽宁 抚顺 113001;
2.济南大学 自动化与电气工程学院,山东 济南 250022
Author(s):
Su Chengli1Shi Huiyuan1Li Ping1Wang Qian1Xu Na2
1.School of Information and Control Engineering,Liaoning Shihua University,Fushun 113001,China;
2.School of Electrical Engineering,University of Jinan,Jinan 250022,China
关键词:
多变量预测函数控制 增量式模型 气体分馏装置
Keywords:
multivariable predictive functional control incremental model gas fractionation units
分类号:
TP13
摘要:
针对传统的比例-积分-微分(PID)控制应用于多变量、大滞后的复杂过程时无法获得满意控制效果的问题,该文提出一种增量式多变量预测函数控制(IMPFC)算法。该算法利用过程阶跃响应数据建立增量式传递函数矩阵模型,采用单点线性化方法直接递推出过程预测输出,并对控制增量进行优化求解,解决了位置式预测函数控制算法对控制量约束的不足,使控制量变化更加平缓。通过对预测输出误差和未来的设定值进行多项式拟合,克服了模型失配问题,使预测输出更接近于参考轨迹。在气体分馏装置中的应用表明,该文方法具有良好的跟踪性、鲁棒性和抑制
Abstract:
In view of that the effect of the traditional proportion-integration-differentiation(PID)control is not satisfying when it is used for the complicated process with multivariable characteristics and large time delay,an incremental multivariable predictive functional control(IMPFC)algorithm is proposed here.An incremental transfer function matrix model is set up through the step-response dates and predictive outputs are deduced with the theory of single point linear method.The incremental control variable is optimized,the constraint of the incremental control variable with the positional predictive functional control algorithm is rejected,and the control variable is made smoother.The predictive output error and future set-point are approximated by a polynomial to overcome the model mismatch and make the predictive outputs tracking the reference trajectory.The application in the gas fractionation unit shows that the proposed control strategy has good effect in tracking,robustness and disturbance rejection,and its control performance is superior to that of the PID control.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2014-08-24 修回日期:2014-11-26
基金项目:国家自然科学基金(61203021); 辽宁省科技攻关项目(2011216011); 辽宁省自然科学基金(2013020024)
作者简介:苏成利(1977-),男,博士,教授,主要研究方向:智能控制、模型预测控制、工业过程的先进控制与优化等,E-mail:sclwind@sina.com。
引文格式:苏成利,施惠元,李平,等.增量式多变量预测函数控制及其在气体分馏装置中的应用[J].南京理工大学学报,2015,39(5):625-631.
投稿网址:http://zrxuebao.njust.edu.cn
DOI:10.14177/j.cnki.32-1397n.2015.39.05.019
更新日期/Last Update: 2015-10-31