Steady-State Stability Limits of a Regulated Synchronous Machine Connected to an Infinite System

The Routh-Hurwitz criterion and the D-partition method are used in the steady-state stability study of a synchronous machine connected to an infinite bus bar. The machine has a continuously acting voltage regulator and a speed governor. The effects of the saliency and the short-circuit ratio of the synchronous machine, and that of the tie-line resistance and reactance on the stability of the system, are investigated.