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New method for monitoring voltage stability condition of a bus of an interconnected power system using measurements of the bus variables

New method for monitoring voltage stability condition of a bus of an interconnected power system using measurements of the bus variables

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The study presents a new method for monitoring the voltage stability condition of a bus using measurements of the bus variables. For this purpose, bus real power, bus reactive power and bus voltage of a target/selected bus have to be measured (sampled) for two consecutive time frames. These measured values are used to monitor the voltage stability condition of a bus using the mathematical basis developed in this study. The validity and applicability of the proposed method has been established through simulation on IEEE 30 and IEEE 118 bus system.

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      • Phadke, A.R., Fozdar, M., Niazi, K.R.: `A new technique for on-line monitoring of voltage stability margin using local signals', 15thNational Power Systems Conf. (NPSC), December 2008, Bombay, IIT, p. 488–492.
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