LPV-modeling of a low-power gas turbine

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1 Citation (Scopus)

Abstract

The nonlinear dynamic model of gas turbines is derived from first engineering principles, which consists of differential conservation balances completed by algebraic constitutive relations. This nonlinear dynamic model can then be transformed into input-affine form. The coordinate-functions of the state equation f(x) have very complicated algebraic structures, while the functions gi,(x) are constants. Because of this fact, the nonlinear dynamic analysis of the model, such as investigation of controllability and stability, can only be performed with difficulty or in some cases it can not be done. To solve this problem and to investigate the controllability and stability of the model in a more effective way the nonlinear dynamic model has to be transformed into LPV (Linear Parameter-Varying) model. This LPV-model can then be effectively used to develop some types of controllers to improve the dynamic response of the engine. In this paper we show the possible ways and steps of the transformation being neither obvious nor unique and the final form of the LPV-model of a pilot-plant gas turbine, which is installed in the Budapest University of Technology and Economics. Department of Aircraft and Ships on a test stand.

Original languageEnglish
Pages511-519
Number of pages9
Publication statusPublished - Dec 1 2002
Event8th Mini Conference on Vehicle System Dynamics, Identification and Anomalies, VSDIA 2002 - Budapest, Hungary
Duration: Nov 11 2002Nov 13 2002

Other

Other8th Mini Conference on Vehicle System Dynamics, Identification and Anomalies, VSDIA 2002
CountryHungary
CityBudapest
Period11/11/0211/13/02

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Keywords

  • Dynamic analysis of nonlinear models
  • LPV-model
  • Modelling of gas turbines

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Ailer, P., Szederkényi, G., & Hangos, K. M. (2002). LPV-modeling of a low-power gas turbine. 511-519. Paper presented at 8th Mini Conference on Vehicle System Dynamics, Identification and Anomalies, VSDIA 2002, Budapest, Hungary.