预测控制的哲学思想分析及其新架构的提出

doi:10.16085/j.issn.1000-6613.2017.03.003

化工进展 ›› 2017, Vol. 36 ›› Issue (03): 783-790.DOI: 10.16085/j.issn.1000-6613.2017.03.003

预测控制的哲学思想分析及其新架构的提出

罗雄麟, 周衍彤

中国石油大学(北京)自动化系, 北京 102249

收稿日期:2016-08-17 修回日期:2016-10-19 出版日期:2017-03-05 发布日期:2017-03-05
通讯作者: 罗雄麟(1963-),男,博士,教授,研究方向为控制理论与过程控制工程、化工系统工程、模式识别与智能系统。
作者简介:罗雄麟(1963-),男,博士,教授,研究方向为控制理论与过程控制工程、化工系统工程、模式识别与智能系统。E-mail:luoxl@cup.edu.cn。
基金资助:
国家自然科学基金项目（21676295）。

Philosophy analysis of model predictive control and proposal of a new framework

LUO Xionglin, ZHOU Yantong

Department of Automation, China University of Petroleum Beijing, Beijing 102249, China

Received:2016-08-17 Revised:2016-10-19 Online:2017-03-05 Published:2017-03-05

摘要/Abstract

摘要：

预测控制属于控制科学，从“过去-现在-将来”的哲学视角看其产生与发展存在必然性。预测控制的性能指标是优化求解预测控制的核心，其结构决定预测控制系统的功能。由于系统优化要求，常规预测控制系统的性能指标由被控变量跟踪项与控制能量变化项组成，但仍不全面。本文从马克思主义唯物辩证法出发，由事物普遍联系的规律提出了理应在性能指标结构中引入表征操作变量与约束边界之间距离的函数，来规避由于预测控制系统与外界联系的约束性对控制造成不利的影响；从全局与局部的角度出发，提出了预测控制的多变量控制与区间控制的特性可以为预测控制的结构改进提供前提；从绝对与相对的辨证范畴进一步探讨了性能指标结构的改进结果。基于上述分析，从马克思主义认识论出发，将预测控制性能指标的改进方案与化工过程中裕量的概念相结合，提出了考虑裕量损失函数的预测控制新架构。最后，将理论结合实践，通过仿真实例验证了预测控制新架构的效果。

关键词: 过程系统, 过程控制, 模型预测控制, 哲学, 性能指标, 裕量

Abstract:

Model predictive control belongs to control science. Its generation and development have inevitability from the philosophical perspective of "past-present-future". The performance index is the core of optimizing the solution of model predictive control,and its structure specifies the function of predictive control system. As the demand of system optimization,the conventional performance index of model predictive control consists of controlled variable tracker and manipulated variable energy consumption,but it is still not comprehensive. From the perspective of Marxist materialist dialectics, a function,which indicated the distance between the operating variables and the constraint boundary to avoid the adverse effects caused by the constraints due to the connection between model predictive control and the outside world,was put forward by using the universal connection law. From the global and local perspectives,the character of multivariable control and interval control in model predictive control was illustrated,which can provide premise for the improvement of the structure of model predictive control. From the perspective of absolute and relative theory,the improved results of the structure of performance index were further discussed. Furthermore,Marxist epistemology combined the improvement scheme of performance index in model predictive control with the concept of margin in the chemical engineering process. Then,a new framework of model predictive control was proposed,which took margin loss function into consideration. Finally,as combination of the theory with practice,the effect of the new architecture of model predictive control was verified by a control simulation example.

Key words: process systems, process control, model predictive control, philosophy, performance index, margin

中图分类号:

TP273

罗雄麟, 周衍彤. 预测控制的哲学思想分析及其新架构的提出[J]. 化工进展, 2017, 36(03): 783-790.

LUO Xionglin, ZHOU Yantong. Philosophy analysis of model predictive control and proposal of a new framework[J]. Chemical Industry and Engineering Progress, 2017, 36(03): 783-790.

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预测控制的哲学思想分析及其新架构的提出

Philosophy analysis of model predictive control and proposal of a new framework

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