Identification of small scale turbojet engine with variable exhaust nozzle

The main goal of the present paper is to identify the coefficients of the linear state space representation of a small scale turbojet engine with variable area convergent exhaust nozzle through measurements on a real gas turbine. The thermodynamics based mathematical model has been established previously; the further steps are to conduct measurements on the laboratory equipment at the authors' Department and realize MATLAB based simulation in order to create the basis for a linear quadratic robust controller system. The results of this research can be implemented in both industrial and educational fields; it can be used for an extended diagnostic system that increases reliability of the controlled plant as well as it can serve as a good test bench for universities.