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AssigneeHitachi, Ltd.
InventorsEisuke Kuroda, Yasuo Sato, Osamu Tomobe, Jun Yamazaki, Masahiro Yatsu, Kouichi Hara, Haruki Miyoshi
Estimating the term…
A voltage stability monitoring device, which monitors voltage stability of a power system, produces a plurality of assumed change scenarios indicating a scenario of a change that is assumed based on at least one of a system configuration of the power system and a change of a tide state, calculates the voltage stability using the assumed change scenario, calculates a voltage stability margin indicating margin degree of the voltage stability, based on the voltage stability selects an assumed change scenario with high severity of the voltage stability for each assumed change scenario, based on the voltage stability margin calculates which buses in the power system are vulnerable buses that decrease voltage stability, based on the assumed change scenario which is selected, and changes a monitoring target of the voltage stability, based on information of the vulnerable bus.
A voltage stability monitoring device which monitors voltage stability of a power system comprising:
A voltage stability monitoring method of monitoring voltage stability of a power system with a voltage stability monitoring device that includes a processor and a memory storing a program which, when executed, causes the processor to execute the method comprising:
Dependencies are inferred from the claim text.