Počet záznamů: 1

Non-stationary Autoregressive Model for On-line Detection of Inter-area Oscillations in Power Systems

  1. 1.
    0353116 - UTIA-B 2011 RIV SE eng C - Konferenční příspěvek (zahraniční konf.)
    Sidorov, D. - Panasetsky, D. - Šmídl, Václav
    Non-stationary Autoregressive Model for On-line Detection of Inter-area Oscillations in Power Systems.
    Innovative Smart Grid Technologies Conference Europe. Gothenburg: IEEE, 2010, s. 1-5. ISBN 978-1-4244-8508-6.
    [Innovative Smart Grid Technologies Conference Europe (ISGT Europe). Gothenburgh (SE), 11.10.2010-13.10.2010]
    Grant CEP: GA ČR GP102/08/P250
    Výzkumný záměr: CEZ:AV0Z10750506
    Klíčová slova: power system oscillation * autoregressive model
    Kód oboru RIV: JA - Elektronika a optoelektronika, elektrotechnika
    http://library.utia.cas.cz/separaty/2010/AS/smidl-non-stationary autoregressive model for on-line detection of inter-area oscillations in power systems.pdf http://library.utia.cas.cz/separaty/2010/AS/smidl-non-stationary autoregressive model for on-line detection of inter-area oscillations in power systems.pdf

    This paper addresses early on-line detection of inter-area electro-mechanical oscillations in power systems using dynamic data such as currents, voltages and angle differences measured across transmission lines in real time. The main objective is to give the transmission operator qualitative information regarding stability margins. In our approach, the observed signal is modeled with the non-stationary second order autoregressive model. Bayesian estimation of the system is based on the forgetting approach. The stability margins are obtained as posterior probabilities that the poles of the estimated system are unstable. The approach is demonstrated on real retrospective data recorded in a 500 kV power grid and voltage data obtained by numerical simulations.
    Trvalý link: http://hdl.handle.net/11104/0192446