Abstract
In this article a comprehensive dynamic bifurcation analysis of the Variable Speed Constant Frequency (VSCF) Advanced Aircraft Electric Power System (AAEPS) corresponding to Boeing 767 is performed. A complete set of state space differential equations are developed to verify the aircraft electric power system stabilities under various loading configurations. In order to investigate the system's sustainability to any foreigner chaos, different loading scenarios, as well as variation in control parameters are considered. Furthermore, change in the operating frequency due to variation in the Synchronous Generator (SG) engine speed is studied. For changes in the loading profile, it is shown that the equilibrium point undergoes different bifurcation behaviors. Finally, the developed equations are implemented in Matlab, and the accuracy of obtained results is verified by exact time-domain simulations of a study model in the PSIM9 SW environment. Also, bifurcation diagrams which can assist engineers in identifying preferred/undesired regions of operations are presented for each case study.
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