Operation and maintenance decision support system for secondary equipment of intelligent substation and data mining method

The invention discloses an operation and maintenance decision support system for secondary equipment of an intelligent substation and a data mining method. The system comprises a decision support center, a data mining manager, a massive data acquisition device and an industrial Ethernet switch. According to the operation and maintenance decision support system for the secondary equipment of the intelligent substation and the data mining method, a potential logical relation is disclosed from massive non-logical relation data through data mining means such as cluster analysis, classification analysis, association analysis and abnormity analysis based on massive data produced in the operation of the digital secondary equipment as a mining object by virtue of a data mining technology, a database technology, a computer software technology, an artificial intelligence technology and a visualization technology, so that an accurate guide and a data support are provided for the operation and maintenance decision of the digital secondary equipment.