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Two system identification approaches are discussed to approximate the nonlinear dynamics of a turbofan engine by constructing linear parameter varying (LPV) models in this paper. The state variables in several steady points from the idle to maximum condition are determined based on the thermodynamic characteristics of engine chambers. The small perturbation method is given out and utilized to obtain...
Starting is a process which an gas turbine has to experience before it operating between the idle and maximum power points, and the problem how to ensure an gas turbine succeed to rapidly and safely start is necessary to be taken seriously. Most control laws only address the operating range between the idle and maximum power points because of the lack of models which can simulate a sub-idle engine...
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