Multi-Subnet Wireless Sensing Feedback for Decentralized H2 Control with Information Overlapping

被引：0

作者：

Wang, Yang ^{[1
]}

Law, Kincho H. ^{[2
]}

Loh, Chin-Hsiung ^{[3
]}

Huang, Shieh-Kung ^{[4
]}

Lu, Kung-Chun ^{[3
]}

Lin, Pei-Yang ^{[3
]}

机构：

[1] Georgia Inst Technol, Sch Civil & Environm Engn, Atlanta, GA 30332 USA

[2] Stanford Univ, Dept Civil & Environm Engn, Stanford, CA 94305 USA

[3] Natl Taiwan Univ, Dept Civil Engn, Taipei, Taiwan

[4] Natl Ctr Res Earthquake Engn, Taipei, Taiwan

来源：

2011 AMERICAN CONTROL CONFERENCE | 2011年

关键词：

STRUCTURAL CONTROL; DESIGN;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper studies a time-delayed decentralized structural control strategy that aims to minimize the H 2 norm of the closed-loop system. In a decentralized control system, control decisions are made based on data acquired from sensors located in the vicinity of a control device. Due to the non-convexity nature of the optimization problem caused by a decentralized architecture, controller design for decentralized systems remains a major challenge. In this work, a homotopy method is employed to gradually transform a centralized controller into multiple decentralized controllers. Linear matrix inequality (LMI) constraints are adopted in the homotopic transformation to ensure closed-loop control performance. In addition, multiple decentralized control architectures are implemented with a network of wireless sensing and control nodes. The sensor network allows simultaneous operation of multiple wireless subnets. Both the theoretical development and system implementation support the information overlapping between decentralized subnets. For validation, the wireless sensing and control system is installed on a six-story laboratory steel structure controlled by magnetorheological (MR) dampers. Shake-table experiments are conducted to demonstrate the performance of the wireless decentralized control strategies.

引用

页码：3104 / 3109

页数：6

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