Mathematical model and controller design of a turbojet engine

In this thesis, non-linear mathematical model of a small-scale turbojet aeroengine is formed and then controller design is conducted for the constructed mathematical model operation of idle to maksimum speed envelope. The model is constructed on MATLAB/Simulink environment. Non-linear mathematical model includes thermodynamic equations (energy, mass, momentum conservation laws) and some algebraic functions. In calculation of performance parameters of compressor and turbine components, ANFIS (Adaptive Neuro Fuzzy Inference System) method is preferred. Controller is designed by using modified PID. Proposed controller structures are simulated and tested at various operating points of the engine and for different transient conditions.