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Control Theory and Technology

, Volume 17, Issue 1, pp 99–111 | Cite as

Event-triggered state estimation for T-S fuzzy affine systems based on piecewise Lyapunov-Krasovskii functionals

  • Meng Wang
  • Jianbin Qiu
  • Gang FengEmail author
Article
  • 8 Downloads

Abstract

This paper investigates the problem of event-triggered H state estimation for Takagi-Sugeno (T-S) fuzzy affine systems. The objective is to design an event-triggered scheme and an observer such that the resulting estimation error system is asymptotically stable with a prescribed H performance and at the same time unnecessary output measurement transmission can be reduced. First, an event-triggered scheme is proposed to determine whether the sampled measurements should be transmitted or not. The output measurements, which trigger the condition, are supposed to suffer a network-induced time-varying and bounded delay before arriving at the observer. Then, by adopting the input delay method, the estimation error system can be reformulated as a piecewise delay system. Based on the piecewise Lyapunov-Krasovskii functional and the Finsler’s lemma, the event-triggered H observer design method is developed. Moreover, an algorithm is proposed to co-design the observer gains and the eventtriggering parameters to guarantee that the estimation error system is asymptotically stable with a given disturbance attenuation level and the signal transmission rate is reduced as much as possible. Simulation studies are given to show the effectiveness of the proposed method.

Keywords

Takagi-Sugeno (T-S) fuzzy affine systems event-triggered scheme piecewise Lyapunov-Krasovskii functional state estimation 

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Copyright information

© Editorial Board of Control Theory & Applications, South China University of Technology and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Biomedical EngineeringCity University of Hong Kong, KowloonHong KongChina
  2. 2.State Key Laboratory of Robotics and Systems & Research Institute of Intelligent Control and SystemsHarbin Institute of TechnologyHarbinChina

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