Relative Dynamic Stability Regions of Power Systems

In this paper, making use of the well-established linearized equations of the synchronous machine and its control equipment, the characteristic equation of the system is developed. Using this characteristic equation, relative dynamic stability regions are mapped in the regulator parameter plane. The mapping gives a qualitative idea of the transient response of the system for small disturbances. The use of the Chebyshev functions greatly facilitates the procedure, especially when a digital computer is used.