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Information Modeling and Security Protection of Partial Discharge Online Monitoring System Based on Iec61850

Based on the IEC 61850 modeling principle, the transformer is used as an example to carry out information modeling and the related communication services is analyzed. Through comparative analysis, the communication mapping method suitable for the partial discharge(PD) online monitoring system is selected. The MMS information interaction scheme based on client/server model is proposed. Since IEC61850 does not consider the safety protection of substation, we combine the safety requirements of the State Grid Corporation to design corresponding safety protection for the information interaction of the monitoring system, which provides reference for the substation online monitoring system based on IEC61850.