基于混合逻辑的非线性系统多模型预测控制  

Multi-Model Predictive Control for Nonlinear Systems Based on Mixed Logic

作　　者：邹涛[1] 王昕[2] 李少远[1] 

机构地区：[1]上海交通大学自动化研究所,上海200240 [2]上海交通大学电工与电子技术中心,上海200240

出　　处：《自动化学报》2007年第2期188-192,共5页Acta Automatica Sinica

基　　金：国家自然科学基金(60474051;60504010;60604017);上海市科委重大技术攻关项目(04DZ11008);教育部新世纪优秀人才计划项目资助~~

摘　　要：针对已有的多模型预测控制算法在模型预测过程中采用局部线性模型进行预测向产生的预测误差较大这一问题,本文将非线性过程的多模型描述与输出预测之间的因果关系以约束条件的形式引入到模型预测控制的设计中,将非线性过程描述成为一个混合逻辑动态系统模型,模型切换规则以先验知识的形式引入到多模型预测过程中,该模型可以全局地表征非线性过程的特性,从而解决了多模型约束非线性预测控制的模型预测与模型切换问题．Big prediction errors are brought into being as the local linear model is used to predict the future output m the model prediction process for the existent multi-model predictive control algorithms. To solve this problem, this paper introduces causality relationship between multi-model of nonlinear process and output prediction into model predictive control framework in the term of constraint conditions, so that the nonlinear process can be described by a mixed-logic dynamic model. This paper also introduces switch rules into the multi-model predictive controller as a kind of pre- experiential knowledge. This new mixed logic dynamic model can characterize the nonlinear process entirely, thus solving the problem of model prediction and model switch for multi-model constrained nonlinear predictive control.

关 键 词：非线性预测控制 多模型 混合逻辑 混合整数二次规划(MIQP) 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]