CS3000系统PID非线性增益的应用效果  

Application Effect of PID Nonlinear Gain in CS3000 Control System

作　　者：郭猛 丛龙海 

机构地区：[1]中国石油大连石化公司

出　　处：《化工自动化及仪表》2017年第2期125-128,共4页Control and Instruments in Chemical Industry

摘　　要：某重整装置分馏部分的3个分馏塔在流程上关联性较强,一直以来3个塔的塔底液位控制无法全部投自动、波动较大,造成塔顶温度和压力也随之波动,影响装置的产品质量。将液位控制改为均匀控制后效果仍然不理想。因此,在均匀控制的基础上,通过引用CS3000系统的PID控制块的非线性增益功能并合理设置相关参数等手段,使得3个塔的液位控制全部都投入了自动控制,塔的液位、温度及压力等控制指标全部达到了生产要求,产品质量明显提高。In the reforming unit, three fractionating towers have strong correlation in the process. The obvious fluctuation in level control of the tower bottom incurs undulation of tower＇ s top temperature and pressure which influencing product quality much. Making use of CS3000 control system＇ s PID nonlinear gain function and reasonably setting parameters concerned to automatically control the liquid level of tower bottom was carried out, including the control over both temperature and pressure there.

关 键 词：PID非线性增益 分馏 CS3000 参数设置 

分 类 号：TH862[机械工程—仪器科学与技术]