Conference paper
Evaluation of enhancements to Thevenin equivalent based methods for real-time voltage stability assessment
The possibilities offered by the use of Phasor Measurement Units (PMU) in real - time monitoring provide interesting ways to ensure secure operation of power systems. This paper studies the specific case of voltage stability and the possible improvements to the Thevenin equivalent methods, which is applied generally with local measurements.
This paper uses the PMU measurements to calculate the grid transformation coefficients to obtain wide - area information. This is achieved by studying the generator's electromo tive force estimated using values in the coefficient transformation matrix. The improvements are tested in a small system and a through comparison with traditional Thevenin equivalent methods is carried out.
Language: | English |
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Publisher: | IEEE |
Year: | 2014 |
Pages: | 1-5 |
Proceedings: | 2014 IEEE PES Innovative Smart Grid Technologies Conference, Europe |
ISBN: | 1479977209 , 1479977217 , 9781479977208 and 9781479977215 |
Types: | Conference paper |
DOI: | 10.1109/isgteurope.2014.7028805 |
ORCIDs: | Perez, Angel , Jóhannsson, Hjörtur and Østergaard, Jacob |
Equivalent circuits Long term dynamics Phasor measur ement units Power system stability Real-time assessment Voltage Stability
Generators Indexes PMU measurements Phasor measurement units Stability criteria Thevenin equivalent based methods Voltage measurement coefficient transformation matrix generator electromotive force grid transformation coefficients matrix algebra phasor measurement phasor measurement units power system stability real-time voltage stability assessment wide-area information