快速增量约束预测控制及在GLCC液位控制中的应用

doi:10.3969/j.issn.0438-1157.2013.03.029

化工学报 ›› 2013, Vol. 64 ›› Issue (3): 993-999.DOI: 10.3969/j.issn.0438-1157.2013.03.029

快速增量约束预测控制及在GLCC液位控制中的应用

何德峰, 鲍荣, 郑凯华, 俞立

浙江工业大学信息工程学院,浙江杭州 310023

收稿日期:2012-07-04 修回日期:2012-10-21 出版日期:2013-03-05 发布日期:2013-03-05
通讯作者: 何德峰(1979—),男,博士,副教授。
作者简介:何德峰(1979—),男,博士,副教授。
基金资助:
国家自然科学基金项目(60904040);高等学校博士点专项科研基金项目(20093317120002);浙江省重大科技专项(2011C16040)。

Fast incremental predictive control with constraints and its application to control of GLCC liquid-level

HE Defeng, BAO Rong, ZHENG Kaihua, YU Li

School of Information Engineering, Zhejiang University of Technology, Hangzhou 310023, Zhejiang, China

Received:2012-07-04 Revised:2012-10-21 Online:2013-03-05 Published:2013-03-05
Supported by:
supported by the National Natural Science Foundation of China(60904040),the Specialized Research Fund for Doctoral Program of Higher Education of China(20093317120002)and the Major Specialized Research Projects of Science & Technology of Zhejiang Province(2011C16040).

摘要/Abstract

摘要： 针对气-液柱状旋流式(GLCC)多相流量计的液位控制问题,提出一种增量多变量模型预测控制(MPC)算法。采用控制增量状态空间模型和阶梯式控制策略,建立约束多变量MPC优化控制问题。为在线计算约束优化问题,引入坐标轮换法和黄金分割法,在线计算控制变量增量值,进而得到预测控制量。最后,以GLCC多相流量计的两输入单输出液位控制模型为例,仿真验证本文算法的有效性。

关键词: 模型预测控制, 约束控制, GLCC多相流量计, 液位控制, 坐标轮换法

Abstract: For liquid-level control problem of gas-liquid cylindrical cyclone(GLCC) multi-phase flow device,an incremental multi-variables model predictive control(MPC) algorithm was proposed.By using state-space models with incremental control and the stair-like strategy,constrained multi-variables MPC was formulated as an optimized control problem.In order to solve the constrained optimization problem,the methods of coordinate alternation and golden section were introduced to calculate online the value of incremental control variables.This led to predictive control actions.Finally,the liquid-level control model with double-inputs and single-output of the GLCC multi-phase flow device was used to illustrate the effectiveness of the algorithm obtained.

Key words: model predictive control, constrained control, GLCC multi-phase flow device, liquid-level control, coordinate alternation method

中图分类号:

TP273

何德峰, 鲍荣, 郑凯华, 俞立. 快速增量约束预测控制及在GLCC液位控制中的应用[J]. 化工学报, 2013, 64(3): 993-999.

HE Defeng, BAO Rong, ZHENG Kaihua, YU Li. Fast incremental predictive control with constraints and its application to control of GLCC liquid-level[J]. CIESC Journal, 2013, 64(3): 993-999.

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快速增量约束预测控制及在GLCC液位控制中的应用

Fast incremental predictive control with constraints and its application to control of GLCC liquid-level

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