Abstract

Abstract The linear model of the aero gas turbine is effective in a small application range. According to this problem, the identification method for parameter uncertain linear model of aero gas turbine proposed. The identification problem is solved by calculating nonlinear programming. Considering the parameter uncertainty of the model is the critical point of this research during the optimization process. A parameter uncertain model of an aero gas turbine can be obtained, which has large use-range. This method is used for DGEN380 aero gas turbine. The two parameters, VDD and VE, are defined for describing error range. Compared with experimental data, the uncertain model of DGEN380 can simulate the real state of DGEN380 within 1% error range when ΔPLA

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