自动化学报2017，Vol.43Issue(6)：1080-1088,9.DOI:10.16383/j.aas.2017.c170137
多变量逆解耦自抗扰控制及其在精馏塔过程中的应用
Multivariable Inverted Decoupling Active Disturbance Rejection Control and Its Application to a Distillation Column Process
摘要
Abstract
Chemical industry is a class of typical multivariable process plants,and has the characteristics of time-varying,coupling,and time delay.It is difficult to achieve good control effect in such systems by using traditional single variable control methods.In this paper,aiming at time-varying behavior,it is assumed that the model of the plant is unknown.By using step response data,an identification method for first-order and second-order delay systems is studied based on least squares method.For the coupling of multivariable systems,the inverted decoupling method is used to decouple the plant.And then an active disturbance rejection controller is designed for the decoupled delay subsystem.In the simulation experiment,the effectiveness of the algorithm is verified by the Wood-Berry model and the Ogunnaike-Ray model of the distillation column.关键词
化工过程控制/大时滞系统/最小二乘辨识/逆解耦技术/自抗扰控制Key words
Chemical process control/long time-delay system/least squares identification/inverted decoupling technology, active disturbance rejection control引用本文复制引用
程赟,陈增强,孙明玮,孙青林..多变量逆解耦自抗扰控制及其在精馏塔过程中的应用[J].自动化学报,2017,43(6):1080-1088,9.基金项目
国家自然科学基金(61573199,61573197),天津市自然科学基金(14JCYBJC18700)资助 Supported by National Natural Science Foundation of China (61573199,61573197),the Natural Science Foundation of Tianjin (14JCYBJC18700) （61573199,61573197）
