Jinhua Grid Operation Decision Support Systems And Power Grid Fault Diagnosis

AS a result of amazing development in information technologies and application of various computer systems over the last few years, a large amount of valuable information has been acquired. These computer systems include SCADA, EMS, Substation Monitoring and Controlling Systems and MIS etc. In order to fully explore these valuable data, it is necessary to develop a set of supplementary decision system (SDS) in power system operational analysis.Based on the actual background of Jinhua Electric Power and the application level of Business Intelligence (BI) technology, the construction objective Supplementary Decision System of Operational Analysis in Jinhua Electric Power is determined. The useful data acquired by ETL tools will be concentrated in data warehouse or data markets. Decision proposal will be made on electric equipments maintenance, reactive power control, electric line operational analysis, equipment defect prevention and control and electric power fault diagnosis by adopting DW, OLAP and DM technologies.Concerning fault estimation, models of using information on operations of both protective relays and circuit breakers are suggested to be utilized. A 0-1 integer programming problem can be deduced from these models, and GA based method can be used to solve it efficiently. Method of topology analysis or wiring analysis based on cause-and-effect mapping pattern is also suggested to be utilized. It is so difficult to establish object functions artificially that exploring the topology structure of electric system to establish object functions automatically is suggested.