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Voltage-Stability Monitoring Using Wide-Area Measurement Systems

par Genet, Benjamin ;Maun, Jean Claude
Référence (1 - 5 July 2007: Lausanne - Switzerland), Power Tech, IEEE
Publication Publié, 2007

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Résumé :

A new monitoring method based on a wide-area network of Phasor Measurement Units (PMU) is proposed. This tool detects on-line and in real-time an incipient voltage instability in the power system. A geographical visualization is introduced to monitor efficiently the state of the network. The method is general and can be implemented in any part of a network prone to voltage instability. It can be used to trigger corrective actions to avoid a collapse. The hypotheses and the results of the new method will be discussed in regard with those given by the Thevenin's equivalent computed at the load bus.