State feedback predictive control for nonlinear hydro-turbine governing system

Yapeng Yi, Zhiwang Zhang, Diyi Chen, Rui Zhou, Edoardo Patelli, Silvia Tolo

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The present work introduces a novel predictive control strategy for the analysis of the dynamic performance of hydro-turbine governing systems based on fuzzy logic. Firstly, a six-dimensional nonlinear dynamic model of the system is defined. The defined model is applied to a realistic case-study, aiming to investigate the dynamic behavior of the system. In order to deal effectively with the nonlinearity of the system under study, the Takagi–Sugeno fuzzy approach is adopted. The results demonstrated through the use of the discrete Lyapunov function and Schur complements of matrices suggest that the closed-cycle control system can achieve a global asymptotic stability state. The second part focuses on the quantification of the impact of sudden changes in operating conditions on the overall performance. The numerical results indicate that the proposed predictive control method can ensure the performance of the system to be reliable and robust to external inferences. In addition to this, the approach proposed has unquestionable advantages over the traditional proportional–integral–derivative and model predictive controllers with regard to nonlinear systems applications.
Original languageEnglish
Pages (from-to)4945-4959
Number of pages15
JournalJournal of Vibration and Control
Volume24
Issue number21
Early online date19 Nov 2017
DOIs
Publication statusPublished - 1 Nov 2018

Keywords

  • state feedback predictive control
  • Takagi–Sugeno
  • fuzzy model
  • hydro-turbine governing system
  • nonlinear
  • stability

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  • Cite this

    Yi, Y., Zhang, Z., Chen, D., Zhou, R., Patelli, E., & Tolo, S. (2018). State feedback predictive control for nonlinear hydro-turbine governing system. Journal of Vibration and Control, 24(21), 4945-4959. https://doi.org/10.1177/1077546317740013