常压塔模型预测控制功能设计分析

在实施模型预测控制技术的过程中，一个良好的控制系统不但要保证系统的稳定性和生产的安全性，还要带来一定的经济效益。然而由于工业过程的不确定性和非线性、变量间的关联性、信息的不完全性等，要获得精确的数学模型十分困难。寻找从实际过程出发、对模型精度要求不高和在线计算简单的控制策略和方法，是模型预测控制技术应用设计的关键。以常减压装置中的常压塔为例，根据模型预测控制技术的特点，结合工艺过程和正常的生产操作，具体分析如何合理地选择常压塔模型预测控制器中的变量，并构成控制器的动态模型。

Design and Analysis of Atmosphere Column Model Predictive Control Functions

A good control system should not only ensure stability of system and safety of production,but also can bring economic benefit when a model predictive control technique is taken into effect.But it is very difficult to find a precise mathematical model from industrial process because there is uncertainty and nonlinearity in industrial process,association between variables and completeness of information etc.The key to apply and design model predictive control technique is to seek the control strategy and the way,which shall start with practice process,make less request for model precision and easily calculate online.Based on specialty of model predictive control technique,process and normal operation,it is analyzed how to choose variables in model predictive controller of atmosphere column which is in atmospheric distillation.