标题：Distributed LQR control for scalar discrete-time uncoupled identical systems
作者：Han, Chunyan ;Wang, Wei ;Zhang, Fangfang
作者机构：[Han, Chunyan ] School of Electrical Engineering, University of Jinan, Jinan, Shandong Province, China;[Wang, Wei ;Zhang, Fangfang ] School of Control 更多
会议名称：2014 11th World Congress on Intelligent Control and Automation, WCICA 2014
会议日期：29 June 2014 through 4 July 2014
来源：Proceedings of the World Congress on Intelligent Control and Automation (WCICA)
关键词：Discrete-time system; Distributed LQR control; Riccati equation decomposition
摘要：This paper investigates the distributed LQR problem for the scalar identical discrete-time multiple systems. Based on the optimal centralized control, the existence condition for the distributed optimal control is first proposed. It reveals that the globally optimal distributed controller is dependent on the structure of the penalty matrix related to the state. When the proposed condition cannot holds, an suboptimal design method with the aid of the decomposition of the discrete algebraic Riccati equations and robustness of the local controllers is also proposed by using the Riccati equation decomposition approach. © 2014 IEEE.