Universität zu Köln

Gorjao, Leonardo Rydin, Jumar, Richard, Maass, Heiko, Hagenmeyer, Veit, Yalcin, G. Cigdem, Kruse, Johannes, Timme, Marc, Beck, Christian ORCID: 0000-0002-4818-6997, Witthaut, Dirk and Schaefer, Benjamin (2020). Open database analysis of scaling and spatio-temporal properties of power grid frequencies. Nat. Commun., 11 (1). BERLIN: NATURE RESEARCH. ISSN 2041-1723

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Abstract

The electrical energy system has attracted much attention from an increasingly diverse research community. Many theoretical predictions have been made, from scaling laws of fluctuations to propagation velocities of disturbances. However, to validate any theory, empirical data from large-scale power systems are necessary but are rarely shared openly. Here, we analyse an open database of measurements of electric power grid frequencies across 17 locations in 12 synchronous areas on three continents. The power grid frequency is of particular interest, as it indicates the balance of supply and demand and carries information on deterministic, stochastic, and control influences. We perform a broad analysis of the recorded data, compare different synchronous areas and validate a previously conjectured scaling law. Furthermore, we show how fluctuations change from local independent oscillations to a homogeneous bulk behaviour. Overall, the presented open database and analyses constitute a step towards more shared, collaborative energy research. Power grid frequencies mirror the state of the grid. Here, Rydin GorjAo et al. analyse measurements of power grid frequencies across areas and continents and uncover scaling laws of their fluctuations and spatio-temporal dynamics, which could aid the design, operation and control of power systems.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Gorjao, Leonardo Rydin UNSPECIFIED UNSPECIFIED UNSPECIFIED Jumar, Richard UNSPECIFIED UNSPECIFIED UNSPECIFIED Maass, Heiko UNSPECIFIED UNSPECIFIED UNSPECIFIED Hagenmeyer, Veit UNSPECIFIED UNSPECIFIED UNSPECIFIED Yalcin, G. Cigdem UNSPECIFIED UNSPECIFIED UNSPECIFIED Kruse, Johannes UNSPECIFIED UNSPECIFIED UNSPECIFIED Timme, Marc UNSPECIFIED UNSPECIFIED UNSPECIFIED Beck, Christian UNSPECIFIED orcid.org/0000-0002-4818-6997 UNSPECIFIED Witthaut, Dirk UNSPECIFIED UNSPECIFIED UNSPECIFIED Schaefer, Benjamin UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-308201
DOI:	10.1038/s41467-020-19732-7
Journal or Publication Title:	Nat. Commun.
Volume:	11
Number:	1
Date:	2020
Publisher:	NATURE RESEARCH
Place of Publication:	BERLIN
ISSN:	2041-1723
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language STABILITY; INERTIA; IDENTIFICATION Multiple languages Multidisciplinary Sciences Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/30820