Substation asset management method and apparatus based on power system reliability index

A substation asset management apparatus based on a reliability index in a power system comprising:

• a health index-generating unit for generating health index by element of the substation by using status data and real-time monitoring data by element of the substation;
• a reference reliability model-managing unit for determining whether to compensate a reference reliability model by substation type and generating a unique reliability model by element of the substation based on the reference reliability model by substation type and health index by element of the substation;
• a system reliability and economic feasibility-evaluating unit for evaluating system reliability and economic feasibility by maintenance scenario based on a pre-generated reference system reliability model for each candidate element subject to maintenance selected according to prespecified priorities;
• a maintenance plan-generating unit for drawing a maintenance scenario of the elements of the substation by using a fitness function of maintaining the substation based on the result drawn through the evaluation of the system reliability and the economic feasibility;
• and
• a maintenance plan-executing unit for checking whether to perform maintenance and updating a unique reliability model by element of the substation while scheduling maintenance and estimating maintenance costs depending on the drawn maintenance scenario of the elements of the substation;
• wherein the fitness function of maintaining the substation is based on system reliability indices.