From Data Mart to Information Smart : Substation Automated Analysis Implementation

The paper discusses substation IED data integration and its importance for implementation of automated analysis solutions. Recorded data collected from various substation IEDs is stored into a substation data mart that utilizes standardized file formats and a database interface. The data mart provides a foundation for multiple uses of substation data. Utilities are faced with a challenge of how to bring together internal needs and requirements, available standards, and recommendations developed by professional organizations, as well as the requirements imposed externally (i.e. NERC standards). Sometimes, there is a challenge of understanding what to expect from solutions that implement all those requirements. In this paper a data mart implementation concept for automated integration and analysis of substation is given first. The solution and implementation requirements are discussed through realistic examples and evaluation of the solution with a variety of test data. Evaluation examples are based on both simulated fault data as well as the actual fault disturbances captured in field by substation IEDs. The presented test examples illustrate what can be expected from substation data mart based solution for automated analysis and how such a solution can be further expanded. Index Terms — smart grid, substation automation, power system faults, power system monitoring, substation data mart, automated fault analysis, fault location