Strictly negative imaginary state feedback control with a prescribed degree of stability

James Dannatt, Ian Petersen, Alexander Lanzon

Research output: Contribution to journalArticlepeer-review

Abstract

This paper presents conditions for the synthesis of a strictly negative imaginary closed-loop system with a prescribed degree of stability under the assumption of full state feedback. A perturbation method is used to ensure the closed-loop system has both the strict negative imaginary property and a prescribed degree of stability. This approach involves the real Schur decomposition of a matrix followed by the solution to two Lyapunov equations. Also, we present and clarify the perturbation properties of strictly negative imaginary systems.
Original languageEnglish
JournalAutomatica
Publication statusAccepted/In press - 7 May 2020

Keywords

  • Negative imaginary systems
  • State feedback control
  • Robust control
  • Algebraic Riccati equations
  • Uncertain dynamic systems

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