摘要
pH值是苯酚丙酮装置中最重要的质量变量之一,但由于pH值检测过程存在高度的非线性和大纯滞后特性,很难有效地对pH值进行自动控制。介绍了苯酚丙酮装置的工艺特点,无模型自适应(MFA)控制技术、苯酚丙酮装置pH值MFA控制系统的设计、实现和控制效果。采用MFA控制技术成功地解决了这一控制难题,获得了满意结果。
The pH value is one of the most important quality variables of phenol-acetone unit. However,it is hard to achieve good pH control performance as the pH process has serious nonlinear characteristic and long time delay. It depicts the process characteristic of phenol-acetone unit, Model-Free Adaptive （MFA） control technology and the design,implementation and control performance of the MFA pH control system for phenol-acetone unit. This pH control problem is solved successfully with satisfactory results by utilizing the MFA control technology.
出处
《石油化工自动化》
CAS
2006年第3期31-33,38,共4页
Automation in Petro-chemical Industry
关键词
苯酚丙酮
PH值控制
无模型自适应控制
非线性
大纯滞后
phenol-acetone ； pH control ； model-free adaptive （MFA） control ； nonlinear ； large time delay
