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This paper introduces a new paradigm for data integration where the substation field data recorded by monitoring and protection Intelligent Electronic Devices (IEDs) is used to supplement Remote Terminal Unit (RTU) data for Supervisory Control and Data Acquisition (SCADA) system, which improves SCADA and other applications. This data integration paradigm allows very detailed monitoring of the power system and subsequently a more comprehensive decision making opportunities for the control applications. The data interfacing between the substation IEDs and EMS SCADA database to allow for such integration is elaborated on indicating various issues in using present IEC standards 61850 and 61970 to accomplish the required data interfacing. The paper ends with a discussion of the benefits of such an approach.
Kezunovi et al. (Fri,) studied this question.