Energy control of distributed parameter systems via speed-gradient method: case study of string and sine-Gordon benchmark models

Research output

13 Citations (Scopus)

Abstract

Energy control problems are analysed for infinite dimensional systems. Benchmark linear wave equation and nonlinear sine-Gordon equation are chosen for exposition. The relatively simple case of distributed yet uniform over the space control is considered. The speed-gradient method for energy control of Hamiltonian systems proposed by A. Fradkov in 1996, has already successfully been applied to numerous nonlinear and adaptive control problems is presently developed and justified for the above partial differential equations (PDEs). An infinite dimensional version of the Krasovskii–LaSalle principle is validated for the resulting closed-loop systems. By applying this principle, the closed-loop trajectories are shown to either approach the desired energy level set or converge to a system equilibrium. The numerical study of the underlying closed-loop systems reveals reasonably fast transient processes and the feasibility of a desired energy level if initialised with a lower energy level.

Original languageEnglish
Pages (from-to)2554-2566
Number of pages13
JournalInternational Journal of Control
Volume90
Issue number11
DOIs
Publication statusPublished - 2 Nov 2017

Scopus subject areas

  • Control and Systems Engineering
  • Computer Science Applications

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