Approximation of the time alignment error for measurements in electricity grids

Antonios, I.; Schwefel, H.-P.; Lipsky, L.

doi:10.1109/EDCC.2019.00038

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Approximation of the time alignment error for measurements in electricity grids

Resource type

Authors/contributors

Antonios, I. (Author)
Schwefel, H.-P. (Author)
Lipsky, L. (Author)

Title

Approximation of the time alignment error for measurements in electricity grids

Abstract

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. © 2019 IEEE.

Proceedings Title

Proc. - Eur. Dependable Comput. Conf., EDCC

Conference Name

15th European Dependable Computing Conference

Publisher

Institute of Electrical and Electronics Engineers Inc.

Place

Naples, Italy

Date

2019

Pages

153-158

DOI

10.1109/EDCC.2019.00038

ISBN

9781728139296 (ISBN)

Citation Key

antoniosApproximationTimeAlignment2019

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-85075633587&doi=10.1109%2fEDCC.2019.00038&partnerID=40&md5=d366a43b4bec1e9a5617f0cb7c87a58f