Statistical Analysis of Abnormal Electric Power Grid Behavior

TitleStatistical Analysis of Abnormal Electric Power Grid Behavior
Publication TypeConference Paper
Year of Publication2010
AuthorsThomas A Ferryman, Brett G Amidan
Conference Name2010 43rd Hawaii International Conference on System Sciences (HICSS)
Date Published01/2010
Conference LocationHonolulu, Hawaii, USA
ISBN Number978-1-4244-5509-6
KeywordsAA08-004, AARD, CERTS, phasor measurement units (PMUs)

Pacific Northwest National Laboratory is developing a technique to analyze Phasor Measurement Unit data to identify typical patterns, atypical events, and precursors to a blackout or other undesirable event. The technique combines data-driven multivariate analyses and engineering-modeling. The method identifies atypical events, provides a plain English description of the event, and gives the capability to use drill-down graphics for detailed investigations. The tool can be applied to the entire grid, individual organizations (e.g., TVA, BPA), or specific substations (e.g., TVA_CUMB). The tool is envisioned for (1) event investigations, (2) overnight processing to generate a Morning Report that characterizes activity that has occurred during the previous 10-30 days, and (3) potentially near-real-time operation to support the grid operators. This paper presents the current status of the tool and illustrations of its application to real world PMU data collected in three 10-day periods in 2007.