Measurement‐based voltage stability assessment for load areas addressing n −1 contingencies
| Autor: | Di Shi, Zhiwei Wang, Fengkai Hu, Kai Sun |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Computer science
020209 energy 020208 electrical & electronic engineering Energy Engineering and Power Technology Boundary (topology) 02 engineering and technology Line (electrical engineering) Power (physics) Reliability engineering Electric power system Voltage stability Control and Systems Engineering Margin (machine learning) Control theory Transfer (computing) 0202 electrical engineering electronic engineering information engineering Maximum power transfer theorem Electrical and Electronic Engineering |
| Zdroj: | IET Generation, Transmission & Distribution. 11:3731-3738 |
| ISSN: | 1751-8695 1751-8687 |
| DOI: | 10.1049/iet-gtd.2016.1913 |
| Popis: | This study proposes an online measurement-based method for n−1 voltage stability assessment on a load area by means of an equivalent system of N + 1 buses introduced by Hu et al. to represent N boundary buses of the load area and the external system. This method utilises real-time synchro-phasor measurements on N boundary buses and online state estimation on the load area to analyse n−1 sensitivities for equivalent transfer admittances and power flows by means of a modified line outage distribution factor in order to estimate the voltage stability margin of power transfer to each boundary bus under an anticipated n−1 condition. The method is demonstrated on the Northeast Power Coordinating Council 48-machine, 140-bus power system. |
| Databáze: | OpenAIRE |
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