Transient stability of power systems and energy functions

Abstract:

A power system is continually experiencing disturbances. Event disturbances include generator outages, short-circuits caused by lightning or other fault conditions, sudden large load changes, or a combination of such events. Load disturbances, on the other hand, are the small random fluctuations in load demands. Transient stability analysis is concerned with a power system's ability to reach an acceptable steady-state following an event disturbance. Stability analysis is the study of whether the postfault trajectory will converge to an acceptable steady-state as time passes. Time-domain approach examines the behavior of the generators, one determines whether stability has been maintained or lost. In contrast to the time-domain approach, direct methods determine system stability based on energy functions.

Año de publicación:

1999

Keywords:

• System stability
• Energy function theory
• Nonlinear systems

Fuente:

scopus