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With the growing implementation of synchrophasors or PMUs across the power grid, it is now possible to observe and analyze system-wide dynamic phenomena in real-time. At Washington State University (WSU), we have been developing the framework of an Oscillation Monitoring System (OMS) for extracting the modal information of electromechanical oscillations from synchrophasors in real-time. A prototype version of OMS has already been implemented in real-time at Tennessee Valley Authority (TVA) and it is being tested and tuned. The paper summarizes the theory of OMS and highlights the implementation features at TVA.
Date of Conference: 26-30 July 2009