Universität zu Köln

Schaefer, Benjamin, Pesch, Thiemo ORCID: 0000-0002-3297-6599, Manik, Debsankha, Gollenstede, Julian, Lin, Guosong, Beck, Hans-Peter, Witthaut, Dirk and Timme, Marc ORCID: 0000-0002-5956-3137 (2022). Understanding Braess' Paradox in power grids. Nat. Commun., 13 (1). BERLIN: NATURE PORTFOLIO. ISSN 2041-1723

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Abstract

The ongoing energy transition requires power grid extensions to connect renewable generators to consumers and to transfer power among distant areas. The process of grid extension requires a large investment of resources and is supposed to make grid operation more robust. Yet, counter-intuitively, increasing the capacity of existing lines or adding new lines may also reduce the overall system performance and even promote blackouts due to Braess' paradox. Braess' paradox was theoretically modeled but not yet proven in realistically scaled power grids. Here, we present an experimental setup demonstrating Braess' paradox in an AC power grid and show how it constrains ongoing large-scale grid extension projects. We present a topological theory that reveals the key mechanism and predicts Braessian grid extensions from the network structure. These results offer a theoretical method to understand and practical guidelines in support of preventing unsuitable infrastructures and the systemic planning of grid extensions.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Schaefer, Benjamin UNSPECIFIED UNSPECIFIED UNSPECIFIED Pesch, Thiemo UNSPECIFIED orcid.org/0000-0002-3297-6599 UNSPECIFIED Manik, Debsankha UNSPECIFIED UNSPECIFIED UNSPECIFIED Gollenstede, Julian UNSPECIFIED UNSPECIFIED UNSPECIFIED Lin, Guosong UNSPECIFIED UNSPECIFIED UNSPECIFIED Beck, Hans-Peter UNSPECIFIED UNSPECIFIED UNSPECIFIED Witthaut, Dirk UNSPECIFIED UNSPECIFIED UNSPECIFIED Timme, Marc UNSPECIFIED orcid.org/0000-0002-5956-3137 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-691147
DOI:	10.1038/s41467-022-32917-6
Journal or Publication Title:	Nat. Commun.
Volume:	13
Number:	1
Date:	2022
Publisher:	NATURE PORTFOLIO
Place of Publication:	BERLIN
ISSN:	2041-1723
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language RENEWABLE-ENERGY-SOURCES; NETWORK; SYNCHRONIZATION; TRANSFORMATION; DYNAMICS; SYSTEMS; MODEL Multiple languages Multidisciplinary Sciences Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/69114