Conference paper
Improved Thévenin equivalent methods for real-time voltage stability assessment
An improved Thévenin equivalent method for real-time voltage stability assessment that uses wide-area information from synchrophasors is proposed. The improvements are a better modeling of the limited synchronous generators, and a processing that anticipates the effect of field current limiters, before the latter are activated.
Several study cases using detailed dynamic simulations of the Nordic test system have been used to assess the performance of the proposed improvements. Their effectiveness is analyzed and, based on the results, their possible application in combination with the sensitivity-based voltage stability assessment method is explored.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2016 |
| Pages: | 1-6 |
| Proceedings: | 2016 IEEE International Energy Conference |
| ISBN: | 1467384631 , 146738464X , 146738464x , 9781467384636 and 9781467384643 |
| Types: | Conference paper |
| DOI: | 10.1109/ENERGYCON.2016.7513971 |
| ORCIDs: | Perez, Angel , Jóhannsson, Hjörtur and Østergaard, Jacob |
Computer Networks and Communications Electrical and Electronic Engineering Energy Engineering and Power Technology Generators Instability detections Nordic test system Over excitation limiters Phasor measurement units Power system control Power system measurement and metering Power system stability Sensitivity Sensitivity analysis Stability Stability criteria Stability limit Study case System stability Test systems Thévenin equivalent Voltage control Voltage stability assessment Voltage stabilizing circuits Wide area information Wide area monitoring Wide-area monitoring improved Thévenin equivalent methods overexcitation limiters phasor measurement power system stability real-time instability detection real-time voltage stability assessment sensitivity analysis sensitivity-based method stability limit synchronous generators synchrophasors voltage stability wide-area information
