A method to coordination for decentralized multi-MPC controllers in integrated plant

doi:10.1109/ICAL.2009.5262873

	A method to coordination for decentralized multi-MPC controllers in integrated plant
	An, Aimin 2; Hao, Xiaohong 2; Su, Hongye 3; Yang, Guangtao 1; Ma, Yongwei 2
	2009
会议日期	August 5, 2009 - August 7, 2009
会议地点	Shenyang, China
关键词	Large scale systems Optimal systems Predictive control systems Probability density function Stochastic systems Closed loop stability Controlled variables Decentralized models Economic performance Global optimal solutions Hierarchical control structure Local optimal solution Probability density functions (PDFs)
DOI	10.1109/ICAL.2009.5262873
页码	480-485
英文摘要	In this paper, a method to coordinate multi-decentralized model predictive controllers(DMMPC), which is used as a strategy to control the integrated plant through decomposing the total system model into different functional sub-models, is proposed. Usually, an integrated plant is also called a large scale systems. The main aim is to relieve the expensive computation load and for improving the flexibility and reliability for operation. How to control and coordinate the possible dynamic coupling and constraints among subsystems has already become an important problem. In order to accomplish the overall objective, coordinating the relationship between optimizer located in upper layer and multi-decentralized MPC controllers located in down layer is a challenging work. A stochastic probability density functions(PDFs) coordination rule is applied to coordinate optimizer with decentralized MPC controllers in the hierarchical control structure. This approach provides the guarantee that local optimal solutions for dominant controlled variables approximate their global optimal solutions under considering uncertainties and interactions among subunits on closed-loop stability condition. As a study case, an integrated plant which consists of two subunits connected via other process and some intermediate tanks under severe constraints while considering maximization economic performance is used to demonstrate feasibility and efficiency of this framework. © 2009 IEEE.
会议录	Proceedings of the 2009 IEEE International Conference on Automation and Logistics, ICAL 2009
会议录出版者	IEEE Computer Society
语种	英语
内容类型	会议论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/117167]
专题	电气工程与信息工程学院
作者单位	1.Department of Electric Control, Company of Engineering, Lanzhou Petroleum Chemical Engineering Company, China 2.Institute of Electrical Engineering and Information Engineering, Lanzhou University of Technology, China; 3.Institute of Cyber-Systems and Control, Zhejiang University, China;
推荐引用方式 GB/T 7714	An, Aimin,Hao, Xiaohong,Su, Hongye,et al. A method to coordination for decentralized multi-MPC controllers in integrated plant[C]. 见:. Shenyang, China. August 5, 2009 - August 7, 2009.