| Power system stability broadly defined as the property of power system that enables
it to remain in a state of operating equilibrium under normal operating conditions and to regain an
acceptable state of equilibrium after being subjected to a disturbances. Instability in Power
system manifested in many different ways depending on the system configuration and operating
mode. The problem of defining and classifying Power system stability has been addressed by
several previous CIGRE and IEEE Task Force reports. These earlier efforts, however do not
completely reflect current industry needs, experiences and understanding. In particular, the
definations are not precise and the classifications do not encompass all practical instability
scenario. This report aims to define the issue of stability definition and classification in power
systems from fundamental view point and discuss linkages to related issues such as power
system reliability and secuirity. |
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