Nonlinear reference tracking control of a gas turbine with load torque estimation

B. Pongrácz, P. Ailer, K. Hangos, G. Szederkényi

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Input-output linearization-based adaptive reference tracking control of a low-power gas turbine model is presented in this paper. The gas turbine is described by a third-order nonlinear input-affine state-space model, where the manipulable input is the fuel mass flowrate and the controlled output is the rotational speed. The stability of the one-dimensional zero dynamics of the controlled plant is investigated via phase diagrams. The input-output linearizing feedback is extended with a load torque estimator algorithm resulting in an adaptive feedback scheme. The tuning of controller parameters is performed considering three main design goals: appropriate settling time, robustness against environmental disturbances and model parameter uncertainties, and avoiding the saturation of the actuator. Simulations show that the closed-loop system is robust with respect to the variations in uncertain model and environmental parameters and its performance satisfies the defined requirements.

Original languageEnglish
Pages (from-to)757-773
Number of pages17
JournalInternational Journal of Adaptive Control and Signal Processing
Volume22
Issue number8
DOIs
Publication statusPublished - Oct 2008

Fingerprint

Gas turbines
Loads (forces)
Torque
Feedback
Linearization
Closed loop systems
Phase diagrams
Actuators
Tuning
Controllers

Keywords

  • Adaptive control
  • Gas turbine
  • Input-output linearization
  • Reference tracking

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Signal Processing

Cite this

Nonlinear reference tracking control of a gas turbine with load torque estimation. / Pongrácz, B.; Ailer, P.; Hangos, K.; Szederkényi, G.

In: International Journal of Adaptive Control and Signal Processing, Vol. 22, No. 8, 10.2008, p. 757-773.

Research output: Contribution to journalArticle

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