Power System Dynamic Performance Measured by Phasor Measurement Unit

In recent years, there has been an increasing interest in monitoring and analyzing dynamic performances of power systems, such as observation of power system oscillations and evaluation of machine parameters. However, in Japan, there was little observation as a whole power system. In this paper the...

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Bibliographic Details
Main Authors: Hashiguchi, T., Ukai, H., Mitani, Y., Watanabe, M., Saeki, O., Hojo, M.
Format: Conference Proceeding
Language:English
Subjects:
Condition monitoring
Educational institutions
Global Positioning System (GPS)
Performance analysis
Performance evaluation
Phase measurement
Phasor measurement units
Position measurement
Power measurement
Power system analysis computing
Power system dynamics
Power system measurements
Short Time Fourier Transform (STFT)
Wavelet transform
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Summary:In recent years, there has been an increasing interest in monitoring and analyzing dynamic performances of power systems, such as observation of power system oscillations and evaluation of machine parameters. However, in Japan, there was little observation as a whole power system. In this paper the authors present a global monitoring system of power system dynamics by using the synchronized phasor measurement of demand side. Authors have placed phasor measurement units (PMU) connected to 100 V outlets in some universities in Japan and been researching into oscillation characteristics in power systems. Phasor measurements are synchronized based on the global positioning system (GPS) and measurement data are transmitted via Internet. Some oscillative features and variation of phasor in a day, a week or a year are analyzed using the acquired data. The purpose of this paper is to show a power system dynamic performance by the use of measurement data at an unexpected disturbance and monitors a global and a local oscillation mode.
DOI:10.1109/PCT.2007.4538570