On the Application of Phasor Measurement Units to Power System Stability Monitoring and Analysis

Zhang, J., Chen, D.

IEEE Power and Energy Conference at Illinois (PECI), pp. 1-6, 24-25 Feb. 2012.

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This paper proposes a method for power system stability monitoring and analysis through Phasor Measurement Units' (PMUs) measurements (i.e., bus voltage magnitudes and angles). Real-time stability monitoring can be achieved by observing the behavior of the measurement data's frequency spectra. In addition, a modified Thevenin equivalent-based model is proposed to analyze the system small-signal stability and transient stability. The model's parameters are estimated based on the phasor measurements. We verify our proposed method through simulations on a RTDS/PMU/PDC testbed and perform analyses on real PMU data.

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