基于扩张状态观测器的换热器动态面控制

doi:10.11949/j.issn.0438-1157.20180539

化工学报 ›› 2018, Vol. 69 ›› Issue (12): 5139-5145.DOI: 10.11949/j.issn.0438-1157.20180539

基于扩张状态观测器的换热器动态面控制

王素珍, 刘庆龙, 孙国法

青岛理工大学信息与控制工程学院, 山东青岛 266520

收稿日期:2018-05-22 修回日期:2018-08-09 出版日期:2018-12-05 发布日期:2018-12-05
通讯作者: 孙国法
基金资助:
国家自然科学基金项目（61640302，61703224）；青岛建设事业科技发展专项（JK2015-20）；国家级大学生创新项目（201610429006，201710429043）。

Dynamic surface control of heat exchanger based on extended state observer

WANG Suzhen, LIU Qinglong, SUN Guofa

School of Information and Control Engineering, Qingdao University of Technology, Qingdao 266520, Shandong, China

Received:2018-05-22 Revised:2018-08-09 Online:2018-12-05 Published:2018-12-05
Supported by:
supported by the National Natural Science Foundation of China (61640302, 61703224), the Special Science and Technology Development of Qingdao Construction Project (JK2015-20) and the National College Students' Innovation Project (201610429006, 201710429043).

摘要/Abstract

摘要：

针对带有延时、大惯性换热器温度控制问题，设计基于扩张状态观测器（ESO）动态面控制器。换热器温度控制是非线性的、时变的和不确定的动态过程，采用扩张状态观测器不仅可以获取系统不可测状态还能实时估计系统动态；采用动态面控制律，实现对温度的精确快速跟踪。利用Lyapunov函数证明控制系统的稳定性。通过对经典PID控制方法、动态矩阵控制方法和基于扩张状态观测器的动态面控制方法进行比较，仿真结果表明基于扩张状态观测器的动态面控制方法具有更优越的控制效果和鲁棒性能，且在被控系统设定值和扰动发生变化时具有更好的动态响应性能。

关键词: 换热器, 扩张状态观测器, 动态面控制, 过程控制, 模型预测控制, 动态仿真, 鲁棒性

Abstract:

For the temperature control problem with time delay and large inertia heat exchanger, the design is based on the extended state observer (ESO) dynamic surface controller. The heat exchanger temperature control is a nonlinear, time-varying and uncertain dynamic process. Firstly, an extended state observer is designed to obtain the immeasurable state and dynamics of the system in real time. Secondly, dynamic surface control is used to achieve accurate and fast tracking of temperature. Then Lyapunov function was used to prove the stability of the control system. Finally, the simulation results show that the dynamic surface control method based on ESO has superior control effect and robust performance by compared the classical PID control method and the dynamic matrix control method. The proposed method has better dynamic response performance when the controlled system set point and disturbances change.

Key words: heat exchanger, extended state observer, dynamic surface control, process control, model-predictive control, dynamic simulation, robustness

中图分类号:

TP273

王素珍, 刘庆龙, 孙国法. 基于扩张状态观测器的换热器动态面控制[J]. 化工学报, 2018, 69(12): 5139-5145.

WANG Suzhen, LIU Qinglong, SUN Guofa. Dynamic surface control of heat exchanger based on extended state observer[J]. CIESC Journal, 2018, 69(12): 5139-5145.

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基于扩张状态观测器的换热器动态面控制

Dynamic surface control of heat exchanger based on extended state observer

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