Reliable control of discrete - Time systems via LEQG performance criteria

Der-Cherng Liaw*, Chun Hone Chen

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

Abstract

In this study, results obtained by Veillette (1995) for continuous systems are extended to the study of Linear-Exponential-Quadratic-Gaussian (LEQG) type reliable control for discrete-time systems which can tolerate abnormal operation within some pre-specified set of actuators. This is achieved by suitable modification of the Algebraic Riccati Equation (ARE) for the design of the controller. Using the LEQG controller's Kalman gain, we show that, the stability of the overall system is preserved despite the abnormal operation of actuators within a pre-specified subset. The gain margin of the feedback gain for reliable stabilization is also derived, which is shown to agree with the one obtained by Veillette in 1995 for the continuous case when the sampling time is sufficiently small.

Original languageEnglish
Pages1306-1309
Number of pages4
StatePublished - 1 Dec 2002
Event2002 IEEE Region 10 Conference on Computers, Communications, Control and Power Engineering - Beijing, China
Duration: 28 Oct 200231 Oct 2002

Conference

Conference2002 IEEE Region 10 Conference on Computers, Communications, Control and Power Engineering
CountryChina
CityBeijing
Period28/10/0231/10/02

Keywords

  • Kalman filter
  • LEQG
  • Reliable control

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