Power system supervisory control apparatus, system, and method using supply reliability

A power system supervisory control apparatus for supervising and controlling a power system including a plurality of renewable energy power supplies, the power system supervisory control apparatus comprising:

• a system influence degree evaluator that evaluates a system influence degree when a renewable energy fluctuation or an assumed fault has an influence on the power system by using, as computation conditions, system data that is data for obtaining a state of the power system, renewable energy fluctuation data indicative of a fluctuation of a power generation output for each of the renewable energy power supplies, and assumed fault data that is data of an assumed fault in the power system, and calculates system influence degree evaluation result data;
• a computation condition selection index calculator that calculates a selection index for the computation conditions by using the system influence degree evaluation result data to calculate computation condition selection index calculation result data;
• and a condition selector that selects the computation conditions,
• the condition selector including one or more of a renewable energy fluctuation condition selector that selects a renewable energy fluctuation condition in the computation conditions by using the computation condition selection index calculation result data, an assumed fault condition selector that selects an assumed fault condition in the computation conditions, and a control target condition selector that selects a control target indicated by the assumed fault data in the computation conditions.