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In this work, voltage stability and applications of Phasor Measurements Units (PMU) are reviewed. Models for PMUs integration, composed of an architecture involving substations, concentrators and control centers are addressed for interacting with a hybrid State Estimator (SE). In that model, online voltage stability analysis is proposed, and through digital simulations, it is illustrated the advantages of the hybrid strategy.
Note: As originally published author Hugo A. Cardona was mistakenly omitted from the list of authors even though included in the Biographies section of the document. The metadata has been updated to include Mr. Cardona.