Power extraction method of designing starting control law for turbofan engine

Power extraction method(PEM)of designing starting control law for turbofan engine was presented,and the computer program was developed.The PEM of designing starting control law is based on the principle of PEM of designing acceleration control law for turbofan engine,combined with the method of extrapolation of component maps.The starting control law for turbofan engine at single flight state and in whole starting envelope was designed by using the program.Computing results were analyzed.It shows that PEM is accurate and effective for designing starting control law for turbofan engine.