Three-phase linear state estimation using Phasor Measurements

Given the ability of the Phasor Measurement Unit (PMU) to directly measure the system state and the increasing implementation of PMUs across the electric power industry, a natural application of PMUs to state estimation techniques would be one that employed the exclusive use of PMU data. Virginia Electric and Power Company aims to implement a three-phase linear tracking state estimator such as this on their 500kV network as part of a DOE demonstration project started in 2009. This paper represents a summary of some the work completed during this project and presents some practical learnings from the implementation.

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