基于模糊自整定PID和Smith预估相结合的分子蒸馏真空度控制  

Vacuum degree control of molecular distillation based on fuzzy self-tuning PID and Smith prediction

作　　者：霍德华[1] 尤文[1] 李晓朋[1] 田鑫宇 HUO Dehua;YOU Wen;LI Xiaopeng;TIAN Xinyu(School of Electrical&Electronic Engineering,Changchun University of Technology,Changchun 130012,China)

机构地区：[1]长春工业大学电气与电子工程学院,吉林长春130012

出　　处：《长春工业大学学报》2018年第1期68-72,共5页Journal of Changchun University of Technology

基　　金：吉林省科技发展计划项目(20130206074SF)

摘　　要：由分子蒸馏动态过程特性以及对蒸馏真空度的要求,将真空度视为纯滞后温度控制对象,将模糊自整定PID与Smith预估相结合,实现了PID参数的自调节,解决了分子蒸馏真空度控制系统中的"非线性"和"时滞"问题。Considering the dynamic process of molecular distillation and the required distillation vacuum degree,we take the vacuum parameter as a time-delay control object and combine the fuzzy self-tuning PID with Smith estimation to realize the self-adjustment of PID parameters and solve the problems such as nonlinearity and time-lag.

关 键 词：分子蒸馏 Smith估计 模糊控制 真空度 

分 类 号：TQ028.31[化学工程]