APPARATUS FOR DETERMINING STABILITY MARGIN OF ONLINE GENERATOR SPECIAL PROTECTION SYSTEM AND METHOD THEREOF

摘要

Disclosed are an apparatus and method for estimating the stability margin of an online generator failure propagation system according to the present invention. An apparatus for estimating a stability margin according to the present invention includes: a data acquisition unit for acquiring a plurality of system data including entire power system information; a stability analysis unit that performs transient stability analysis by applying a pre-applied failure scenario to a failure propagation prevention system of a generator in the region of interest based on the obtained system data; a power generation power processing unit that increases or decreases power generation power according to a result of performing the transient stability analysis; And it includes a stability calculation unit that calculates the power generation power of the linked generator excluding the increased power generation power of the dropped generator as the stability margin of the failure propagation prevention system in the region of interest.