POWER SYSTEM STABILIZATION DEVICE AND METHOD

摘要

PROBLEM TO BE SOLVED: To provide a technology capable of maintaining stability of a power system by stabilization control even in the case where tidal current fluctuation of the power system is increased more than the assumption in previous calculation.SOLUTION: A power system stabilization device is configured to implement stabilization control of a power system and comprises: an index calculation part which uses generator output that is output of a generator for supplying power to the power system and a generator phase difference indicating a change in a phase angle of the generator output relative to a time to calculate an acceleration index that is an index representing acceleration of the generator; a threshold determination part for determining whether the acceleration index exceeds a preset threshold; and a control command part for issuing a control command of control contents, that are preset for the threshold, for correcting the stabilization control if the acceleration index exceeds the threshold.SELECTED DRAWING: Figure 1