Rotor angle stability of a linearized synchronous generator

This manuscript proposes a linearization of a swing equation to achieve a steady state stability of rotor angle with the appearance of small disturbance. The objective is achieved by considering the dynamic behavior of a single-machine system connected to an infinite bus bar. The linearization method considers a damping power coefficient. To validate the effectiveness of this method, a simulation in MATLAB/SIMULINK® is carried out. The result shows that the system is stable for all positive synchronizing power coefficient. However, this method is limited to a very small power impact and deviation from operating state. This phenomenon shows the shortcomings of linearization method and hence open new research awareness on solving this problem.