苯烯比控制系统控制器性能评估方法

兰州理工大学学报 ›› 2026, Vol. 52 ›› Issue (1): 76-84.

• 自动化技术与计算机技术 • 上一篇下一篇

苯烯比控制系统控制器性能评估方法

曹慧超^1,2,3, 王生钰¹, 李炜^*1,2,3, 杨建峰⁴

1.兰州理工大学自动化与电气工程学院, 甘肃兰州 730050;
2.兰州理工大学甘肃省工业过程先进控制重点实验室, 甘肃兰州 730050;
3.兰州理工大学电气与控制工程国家级实验教学示范中心, 甘肃兰州 730050;
4.中国石化兰州石化分公司, 甘肃兰州 730000

收稿日期:2023-09-18 出版日期:2026-02-28 发布日期:2026-03-05
通讯作者: 曹慧超(1986-),女,甘肃平凉人,博士,副教授.Email:caohc@lut.edu.cn
基金资助:
国家自然科学基金(62263020)

Research on the controller performance assessment method for benzene-ethylene ratio control system

CAO Hui-chao^1,2,3, WANG Sheng-yu¹, LI Wei^1,2,3, YANG Jian-feng⁴

1. School of Automation and Electrical Engineering, Lanzhou University of Technology, Lanzhou 730050, China;
2. Key Laboratory of Gansu Advanced Control for Industrial Processes, Lanzhou University of Technology, Lanzhou 730050, China;
3. National Demonstration Center for Experimental Electrical and Control Engineering Education, Lanzhou University of Technology, Lanzhou 730050, China;
4. PetroChina Lanzhou Petrochemical Company, Lanzhou 730000, China

Received:2023-09-18 Online:2026-02-28 Published:2026-03-05

摘要/Abstract

摘要： 针对流程工业控制系统回路众多,伴随长效运行存在控制器性能下降、精准高效维护欠缺的问题,基于某企业苯乙烯烃化单元中的苯烯比控制系统,提出一种复杂比值控制系统控制器性能评估方法.首先通过工艺机理解析,构建一主四副苯烯比系统控制架构;然后,采用滑动数据窗法,基于改进广义最小熵评估基准,分别对系统五个单回路控制器进行动态性能评估;接着设计随动性能指标评估系统各回路间耦合协同控制性能,综合各回路独立调控与回路间协同控制性能,制定系统控制器联合性能评估指标,借助斯皮尔曼相关系数统计分析法确定指标融合权重,实现了系统控制器整体性能评估;最后,通过实验表明了该控制器性能评估方法有效可行,能够及时发现系统的亚健康状态.

关键词: 控制器, 性能评估, 苯烯比控制, 广义最小熵

Abstract: Aiming at the problems of the controller performance degradation and the lack of accurate and efficient maintenance due to long-term and efficient operation for process industrial control systems with numerous loops, a controller performance assessment method of complex ratio control system is proposed for the benzene-ethylene ratio control system of the hydrocarbonization unit in a styrene plant. Firstly, a control structure of the benzene-ethylene ratio system with 1 main-4 pairs is constructed by analyzing the process mechanism. Secondly, the dynamic performance assessment for controllers of five single-loop systems is implemented based on the improved generalized minimum entropy benchmark using the sliding data window method. Then the following performance index is designed to assess the cooperative control performance between each loop of the system. After that, the combined performance index of the system is formulated. The weights of the combined performance index are determined by the Spearman correlation coefficient method, and the overall assessment of the controller performance for the benzene-ethylene ratio control system is realized. Finally, experimental studies demonstrate the effectiveness and feasibility of the proposed controller performance evaluation method, which can promptly detect suboptimal system states.

Key words: controller, performance assessment, benzene and ethylene ratio control, generalized minimum entropy

中图分类号:

TP273

曹慧超, 王生钰, 李炜, 杨建峰. 苯烯比控制系统控制器性能评估方法[J]. 兰州理工大学学报, 2026, 52(1): 76-84.

CAO Hui-chao, WANG Sheng-yu, LI Wei, YANG Jian-feng. Research on the controller performance assessment method for benzene-ethylene ratio control system[J]. Journal of Lanzhou University of Technology, 2026, 52(1): 76-84.

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苯烯比控制系统控制器性能评估方法

Research on the controller performance assessment method for benzene-ethylene ratio control system

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