Power system operation plan creation assistance device and method

A power system operation plan creation assistance method that is implemented with a computer, characterized by comprising:

• an optimization target snapshot power flow determining step which determines snapshot power flows for which to execute optimization using one or more data sets of basic information comprising power generation plans, total demand predictions, sales plans, renewable energy resources predictions, outage plans, system data, and settings;
• a system switching variable candidate extracting step which extracts candidates of system switching variables using snapshot power flows for which to execute optimization determined by the optimization target snapshot power flow determining step and one or more data sets of the basic information;
• an optimal system configuration calculating step which calculates optimal system configurations using system switching variable candidates extracted by the system switching variable candidate extracting step and one or more data sets of the basic information;
• a stability and economy evaluating step which evaluates stability and economy using operation plans as optimal system configurations calculated by the optimal system configuration calculating unit and one or more data sets of the basic information;
• and
• a displaying step which displays on screen, evaluation results obtained by the stability and economy evaluating step and the operation plans.