Electromechanical speed map development using FNET/GridEye frequency measurements

Abstract

Differences in electromechanical wave propagation speeds have long been observed in different regions of the power grid. Various attempts have been made over the years to develop “speed maps” of the grid, either through analytical means or from measurements. Analytical techniques are computationally difficult and require that an accurate model of the system be known a priori, which is generally impossible for a large system such as the Eastern Interconnection. Most, if not all, of measurement-based techniques introduced to-date assume constant propagation speed between the disturbance source and the sensor, which does not reflect reality. This paper presents a new method for developing speed maps using FNET/GridEye data from confirmed disturbances that seeks to eliminate many of the issues faced by previous attempts.