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A reduced-order controller considering high-order modal information of high-rise buildings for AMD control system with time-delay

Li, Z-H, Chen, C-J, Teng, J, Hu, W-H, Xing, H-B and Wang, Ying (2017) A reduced-order controller considering high-order modal information of high-rise buildings for AMD control system with time-delay Shock and Vibration, 2017, 7435060.

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Abstract

Time-delays of control force calculation, data acquisition and actuator response will degrade the performance of Active Mass Damper (AMD) control systems. To reduce the influence, model-reduction method is used to deal with the original controlled structure. However, during the procedure, the related hierarchy information of small eigenvalues will be directly discorded. As a result, the reduced-order model ignores the information of high-order mode, which will reduce the design accuracy of an AMD control system. In this paper, a new reduced-order controller based on the improved Balanced Truncation (BT) method is designed to reduce the calculation time and to retain the abandoned high-order modal information. It includes high-order natural frequency, damping ratio and vibration modal information of the original structure. Then, a control gain design method based on Guaranteed Cost Control (GCC) algorithm is presented to eliminate the adverse effects of data acquisition and actuator response time-delays in the design process of the reduced-order controller. To verify its effectiveness, the proposed methodology is applied to a numerical example of a ten-storey frame and an experiment of a single span four-storey steel frame. Both numerical and experimental results demonstrate that the reduced-order controller with GCC algorithm has an excellent control effect, meanwhile can compensate time-delays effectively

Item Type: Article
Subjects : Civil & Environmental Engineering
Authors :
NameEmailORCID
Li, Z-HUNSPECIFIEDUNSPECIFIED
Chen, C-JUNSPECIFIEDUNSPECIFIED
Teng, JUNSPECIFIEDUNSPECIFIED
Hu, W-HUNSPECIFIEDUNSPECIFIED
Xing, H-BUNSPECIFIEDUNSPECIFIED
Wang, Yingying.wang@surrey.ac.ukUNSPECIFIED
Date : 19 January 2017
Identification Number : 10.1155/2017/7435060
Copyright Disclaimer : Copyright © 2017 Zuo-Hua Li et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Uncontrolled Keywords : Flexible and high-rise building; Active Mass Damper; Balanced truncation method; Model reduction; Guaranteed cost control; Time-delay compensation.
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 16 Dec 2016 15:51
Last Modified : 07 Jul 2017 11:29
URI: http://epubs.surrey.ac.uk/id/eprint/813132

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