模糊自适应PID对保险粉合成pH值的控制研究
Research on fuzzy adaptive PID control for the pH value of sodium hydroxide synthesis
林志树 1李洪毅 1朱冠华2
作者信息
- 1. 厦门理工学院 机械与汽车工程学院,福建 厦门 361024
- 2. 广东石油化工学院 广东省石化装备故障诊断重点实验室,广东 茂名 525000
- 折叠
摘要
保险粉合成过程pH值控制存在非线性、时滞性、不确定性问题,采用常规PID控制结合人工控制的方式无法实现参数自调整,对pH值的控制很难达到预期效果,为此,提出了模糊自适应PID控制方法.介绍了保险粉合成原理及反应方程式,分析酸碱中和pH值控制并确定系统的传递函数,设计了模糊自适应PID控制器,通过Matlab/Simulink进行仿真分析,并进行了实验验证,结果表明:模糊自适应PID控制与常规PID控制相比,具有超调量小、调节时间短、抗干扰能力强等优点,实现了对pH值的有效控制.
Abstract
Problems like non-linearity,time delays and uncertainties still exist in the pH value control of sodium hydrosulfite synthesis process.The parameter self-adjustment can not be realized by conventional PID control plus artificial control.Thus,the desired effect on pH value control can hardly be achieved.To solve these problems,a fuzzy adaptive PID control method is proposed in this paper.The synthesis principle and reaction equation of sodium hydrosulfite are introduced.The pH value control based on acid-base neutralization is analyzed and the transfer function of the system is confirmed.The fuzzy adaptive PID controller is designed.The simulational analysis is made by using Matlab/Simulink and empirical experiments are also conducted.Our results show the fuzzy adaptive PID control has such advantages as small overshoot,short adjustment time and strong anti-interference ability compared with the conventional PID control,and thus the pH value control is effectively achieved.
关键词
保险粉合成过程/pH值控制/模糊自适应PID/Matlab仿真/实验验证Key words
sodium hydrosulfite synthesis process/pH value control/fuzzy adaptive PID/MATLAB simulation/experimental verification引用本文复制引用
基金项目
福建省自然科学基金项目(2022J011249)
广东省科技创新战略专项("大专项+任务清单")项目(2022DZXHT022)
出版年
2024
国家科技期刊平台
NSTL
万方数据