Approximation of the time alignment error for measurements in electricity grids

Imad Antonios, Hans-Peter Christian Schwefel, Lester Lipsky

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Abstrakt

Measurements of parameters in electricity grids are
frequently captured as average values over some time interval.
In scenarios of distributed measurements such as in distribution
grids, offsets of local clocks can result in misaligned averaging
intervals. This paper investigates the properties of the so-called
time alignment error of such measurands that is caused by
shifts of the averaging interval. We extend a previously derived
Markov-modulated model and provide an approximation of
the variance of the time alignment error. The model accounts
for slow-decaying correlation structure found in actual traces
of electrical measures. We compare results of three electrical
measures for 20 traces with numerical results and simulations
from the the fitted Markov model.
OriginalsprogEngelsk
Titel2019 15th European Dependable Computing Conference (EDCC)
Antal sider6
ForlagIEEE
Publikationsdato7 nov. 2019
Sider153-158
Artikelnummer8893429
ISBN (Trykt)978-1-7281-3930-2
ISBN (Elektronisk)978-1-7281-3929-6
DOI
StatusUdgivet - 7 nov. 2019
Begivenhed15th European Dependable Computing Conference (EDCC) - Naples, Italien
Varighed: 17 sep. 201920 sep. 2019

Konference

Konference15th European Dependable Computing Conference (EDCC)
LandItalien
ByNaples
Periode17/09/201920/09/2019
NavnProceedings of EDCC 2019

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