Constrained nonlinear MPC for accelerated tracking piece-wise references and its applications to thermal systems  

作　　者：Defeng He Qingsong Wang Ping Han Haiping Du 

机构地区：[1]College of Information Engineering,Zhejiang University of Technology,Hangzhou,310023,Zhejiang,China [2]School of Electrical,Computer and Telecommunications Engineering,University of Wollongong,Wollongong,NSW,2522,Australia

出　　处：《Control Theory and Technology》2022年第1期69-79,共11页控制理论与技术（英文版）

基　　金：the National Natural Science Foundation of China(61773345);the Zhejiang Provincial Major Projects Foundation of China(2020C03056).

摘　　要：In this paper,we propose a model predictive control(MPC)strategy for accelerated offset-free tracking piece-wise constant reference signals of nonlinear systems subject to state and control constraints.Some special contractive constraints on tracking errors and terminal constraints are embedded into the tracking nonlinear MPC formulation.Then,recursive feasibility and closed-loop convergence of the tracking MPC are guaranteed in the presence of piece-wise references and constraints by deriving some sufficient conditions.Moreover,the local optimality of the tracking MPC is achieved for unreachable output reference signals.By comparing to traditional tracking MPC,the simulation experiment of a thermal system is used to demonstrate the acceleration ability and the effectiveness of the tracking MPC scheme proposed here.

关 键 词：Model predictive control Nonlinear systems Constrained control Tracking control Thermal systems 

分 类 号：TP27[自动化与计算机技术—检测技术与自动化装置]