化工学报 ›› 2022, Vol. 73 ›› Issue (7): 3166-3173.doi: 10.11949/0438-1157.20211842

• 过程系统工程 • 上一篇    下一篇

区间二型模糊免疫PID在环己烷无催化氧化温度控制系统中的应用

赵涛岩1(),曹江涛1,李平2,冯琳1,商瑀3   

  1. 1.辽宁石油化工大学信息与控制工程学院，辽宁 抚顺 113001
    2.辽宁科技大学电子与信息工程学院，辽宁 鞍山 114051
    3.中国石油天然气股份有限公司抚顺石化分公司烯烃厂，辽宁 抚顺 113001
  • 收稿日期:2021-12-28 修回日期:2022-03-20 出版日期:2022-07-05 发布日期:2022-08-01
  • 通讯作者: 赵涛岩 E-mail:zhaotaoyan1986@126.com
  • 作者简介:赵涛岩（1986—），男，博士，讲师，zhaotaoyan1986@126.com
  • 基金资助:
    国家自然科学基金项目(61673199);辽宁省教育厅科学研究经费项目(L2019042);辽宁石油化工大学博士科研启动基金项目(2019XJJL-017)

Application of interval type-2 fuzzy immune PID controller to temperature control system for uncatalysed oxidation of cyclohexane

Taoyan ZHAO1(),Jiangtao CAO1,Ping LI2,Lin FENG1,Yu SHANG3   

  1. 1.School of Information and Control Engineering, Liaoning Petrochemical University, Fushun 113001, Liaoning, China
    2.School of Electronic and Information Engineering, University of Science and Technology Liaoning, Anshan 114051, Liaoning, China
    3.Olefin Plant of Fushun Petrochemical Branch of CNPC, Fushun 113001, Liaoning, China
  • Received:2021-12-28 Revised:2022-03-20 Published:2022-07-05 Online:2022-08-01
  • Contact: Taoyan ZHAO E-mail:zhaotaoyan1986@126.com

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摘要：

环己烷无催化氧化过程具有非线性、多变量耦合、大时滞等特点，使用常规比例积分微分(PID)控制方案无法达到理想的控制性能。提出了一种区间二型模糊免疫PID控制器，其本质上是一种基于免疫PID的非线性控制器，利用区间二型模糊逻辑系统来逼近免疫反馈律中的非线性函数，以提升控制器处理和逼近复杂不确定非线性系统的能力。将所提出的控制器应用于环己烷无催化氧化温度控制系统，仿真结果表明该方法是有效的。

关键词: 免疫反馈, 区间二型模糊逻辑系统, PID算法, 过程控制, 优化设计, 环己烷无催化氧化

Abstract:

The non-catalytic oxidation of cyclohexane has the characteristics of nonlinearity, multi-variable coupling, large time delay, etc., and the ideal control performance cannot be achieved by using the conventional PID control scheme. In this paper, an interval type-2 fuzzy immune PID controller is proposed, which is essentially a nonlinear controller based on immune PID. The interval type-2 fuzzy logic system (IT2FLS) is used to approximate the nonlinear function in the immune feedback law, so as to improve the ability of the controller to deal with and approach complex uncertain nonlinear systems. Finally, the proposed controller is applied to temperature control system for uncatalysed oxidation of cyclohexane, and the simulation results show that the method is effective.

Key words: immune feedback, interval type-2 fuzzy logic system, PID algorithm, process control, optimal design, uncatalysed oxidation of cyclohexane

中图分类号: 

  • TP 173

图1

环己烷无催化氧化工艺流程图"

图2

IT2FIPID控制系统框图"

图3

区间二型模糊系统的结构框图"

图4

控制变量的隶属函数"

图5

控制变量变化的隶属函数"

图6

非线性函数的隶属函数"

图7

温度控制系统仿真结果"

图8

控制误差曲线"

图9

Kp的自整定结果"

表1

三种控制器的性能指标值"

控制器模糊规则数超调量σ/%IAE值ISE值
PID-37.451.9953×1044.4336×106
IT2FPID4912.308.2471×1032.3575×106
IT2FIPID403.7477×1041.1214×107
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