Sequence of Event Recorder SGIP Smart Grid Interoperability Panel

As the power systems become more complex due to integration of renewables and increased transmission demands, monitoring fault disturbances becomes more important task. Manual analysis of faults and related impacts on the system due to protective relay miss-operation or unintended operation is not sufficient to restore the grid in a timely manner. Hence, an automated approach is required. This paper describes a system developed for that purpose and deployed at several utilities in the USA at different levels of complexity. The barriers to implementation and development are addressed. The role of interoperability standards in overcoming the barriers is explained. While the use of IEC standards 61850 and 61970 is emphasized the focus is also on many other IEC and IEEE standards that need to be applied. The paper ends in a discussion of how such a solution may be built using standards for data exchange.