A constrained receding horizon control for industrial boiler systems

作     者：Young Sam Lee Wook Hyun Кwon Oh Kyu Kwon 

作者机构：Engineering Research Center for Advanced Control and Instrumentation School of Electrical Engr. Seoul National Univ. Seoul 151-742 Korea School of Electrical and Computer Engr. Inha Univ. Inchon 402-751 Korea 

出 版 物：《IFAC Proceedings Volumes》 

年 卷 期：2000年第33卷第20期

页      面：411-416页

主　　题：Receding horizon control (RHC) Boiler systems Actuator constraint Semi-definite programming Gain-scheduling 

摘      要：In this paper, the control problem of nonlinear boiler systems with actuator constraints is considered. Main difficulties in controlling boiler systems are largely due to the constraints imposed on the actuating valves and nonlinear dynamics. In order to overcome these difficulties, combined approaches are taken. First, the receding horizon control based on semi-definite programming is used to handle the actuator constraints and to enhance the closed-loop stability. Second, gain-scheduling strategy is combined with the RHC to consider the nonlinear dynamics efficiently, hence making the satisfactory global control available. Finally, the performances of the proposed controller are illustrated via the simulations.