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Phasor measurement application for power system voltage stability monitoring

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3 Author(s)
Le Fu ; Department of Electrical and Electronic Engineering at Imperial College London, SW7 2BT, U.K. ; Bikash C. Pal ; Brian J. Cory

Monitoring voltage stability is an important task for ensuring secure operation of electrical power networks. In this paper, a phasor measurement based voltage stability monitoring scheme is proposed. By using phasor measurement units and transformer tap position changes, voltage stability indices can be computed at load supply points in the operational time scale. Because this scheme is only based on phasor measurements, it is easy to be adopted in real electrical power networks and does not require any information about the system model. The effectiveness of the scheme was validated in a simple power network and also in New England and New York interconnection power system model. The practicality of the approach was further demonstrated in a real-time dynamic simulator.

Published in:

Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century, 2008 IEEE

Date of Conference:

20-24 July 2008