Power system stability analysis device, stabilization device and method

摘要

An object of the present invention is to provide a power system stability analysis device, a stabilization device, and a method capable of preventing excessive and insufficient power source restriction of a power system stabilization device. It is a power system stability analysis device that obtains measurement data from each of existing measuring instruments and high-precision measuring devices installed in the power system and analyzes the stability of the power system. A system state estimation unit that estimates the system state of the power system using the measurement data from the measuring instrument, a synchronization stability analysis unit that analyzes the synchronization stability in a contingency using the estimation result of the system state, and the system state Is provided with a synchronization stability analysis correction unit that corrects the synchronization stability according to the difference between the estimation result and the measurement data of the high-precision measurement device, and improves the accuracy of the synchronization stability analysis of the power system.