In:
Complexity, Hindawi Limited, Vol. 2023 ( 2023-3-6), p. 1-13
Abstract:
Complex systems, such as the power grid, are essential for our daily lives. Many
complex systems display multifractal behavior, correlated fluctuations and power laws. Whether the power-grid frequency, an indicator of the balance of supply
and demand in the electricity grid, also displays such complexity remains a mostly open question. Within the present article, we utilize highly resolved
measurements to quantify the properties of the power-grid frequency, making three key contributions: First, we demonstrate the existence of power laws in
power-grid frequency measurements. Second, we show that below one second, the dynamics may fundamentally change, including a suddenly increasing power
spectral density, emergence of multifractality and a change of correlation behavior. Third, we provide a simplified stochastic model involving positively
correlated noise to reproduce the observed dynamics, possibly linked to frequency-dependent loads. Finally, we stress the need for high-quality
measurements and discuss how we obtained the data analyzed here.
Type of Medium:
Online Resource
ISSN:
1099-0526
,
1076-2787
DOI:
10.1155/2023/2657039
Language:
English
Publisher:
Hindawi Limited
Publication Date:
2023
detail.hit.zdb_id:
2004607-8
SSG:
11
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