Coordinated control of multiple liquid levels and furnace composite system

QI Lugang; LÜ Wenxiang; GAO Xiaoyong; LUAN Zhiye; HUANG Dexian

doi:10.11949/j.issn.0438-1157.20151893

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Coordinated control of multiple liquid levels and furnace composite system

更新时间：2025-12-10

- Coordinated control of multiple liquid levels and furnace composite system
- CIESC Journal Issue 3, Pages: 690-694(2016)
- 作者机构：
  
  清华大学自动化系,北京,100084
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20151893
  CLC： Q028.8
- Online First：12 January 2016，
  
  Published：12 January 2016
- 稿件说明：
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QI Lugang, LÜ Wenxiang, GAO Xiaoyong, et al. Coordinated control of multiple liquid levels and furnace composite system[J]. CIESC Journal, 2016, (3): 690-694.
DOI：

QI Lugang, LÜ Wenxiang, GAO Xiaoyong, et al. Coordinated control of multiple liquid levels and furnace composite system[J]. CIESC Journal, 2016, (3): 690-694. DOI： 10.11949/j.issn.0438-1157.20151893.

摘要

多液位与加热炉复合系统是一类具有液位和加热炉支路间的强耦合性及大滞后与非线性等特性的复杂工业过程。针对这类系统的多液位控制与加热炉支路温度平衡控制问题

根据解耦与平衡的思想

提出了一种基于总容量平衡的变周期液位控制的协调控制方法

从结构上实现了多液位控制与支路温度平衡控制的分离

耦合性分析也说明了方法的可行性

最终实现了复合系统的整体协调控制。基于HYSYS流程模拟的仿真实验表明了所提出控制方法的有效性。

Abstract

The composite system of multiple liquid levels and furnace is a kind of complex industrial process with strong coupling

large delay and nonlinear characteristics. For the control of multiple liquid levels and furnace pass temperature in such systems

on the level of decoupling and balance

a variable period prediction control approach based on the total capacity is proposed. So multi-level control and pass temperature balance control is decoupled on the control structure

and coupling analysis shows the feasibility of the method. Then the overall coordination control can be realized. Simulation results on HYSYS Flow sheeting demonstrate the effectiveness of this approach.

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