Output feedback disturbance rejection control for building structure systems subject seismic excitations

• Published in: Measurement and control (London) Vol. 53; no. 9-10; pp. 1616 - 1624
• Main Authors: Lan, Qixun, Zhang, Xiaoguo, Li, Yajie, Mu, Jingjing, Zhu, Weiping, Xu, Huafeng
• Format: Journal Article
• Language: English
• Published: London, England SAGE Publications 01.11.2020; Sage Publications Ltd; SAGE Publishing
• Subjects: Attenuation; Control systems; Control theory; Earthquake loads; Excitation; Feedback; Linear transformations; Output feedback; Proportional integral; Rejection; seismic excitation; active disturbance rejection control; generalized-proportional-integral observer; output feedback control; Building structure
• ISSN: 0020-2940; 2051-8730
• DOI: 10.1177/0020294020959743

In this paper, the output feedback disturbance rejection control (OFDRC) problem is considered for buildings structures subject seismic excitations. First, based on a mild assumption and a linear transformation, the addressed problem of building structure system is translated into the output feedback disturbance rejection control problem large-scale system with disturbances. Then, by utilizing generalized-proportional-integral observer (GPIO) technique and output feedback domination approach, an output feedback decentralized disturbance rejection control law is derived via a systematic design manner. The multi-overlapping output feedback disturbance rejection controller is obtained according to the inverse transformation of a linear transformation. Strict theory analysis demonstrates that the states of the structure system will be stabilized to a small bounded region. Finally, an 8-story structure system is employed to evaluate the effectiveness of the proposed control strategy. Simulation results demonstrate that the proposed OFDRC exhibits better seismic loads attenuation ability and strong robustness against model uncertainties.