Universität zu Köln

Tchuisseu, Eder Batista Tchawou, Gomila, Damia ORCID: 0000-0002-3500-3434, Colet, Pere ORCID: 0000-0002-5992-6292, Witthaut, Dirk ORCID: 0000-0002-3623-5341, Timme, Marc ORCID: 0000-0002-5956-3137 and Schaefer, Benjamin (2018). Curing Braess' paradox by secondary control in power grids. New J. Phys., 20. BRISTOL: IOP PUBLISHING LTD. ISSN 1367-2630

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Abstract

The robust operation of power transmission grids is essential for most of today's technical infrastructure and our daily life. Adding renewable generation to power grids requires grid extensions and sophisticated control actions on different time scales to cope with short-term fluctuations and long-term power imbalance. Braess' paradox constitutes a counterintuitive collective phenomenon that occurs if adding new transmission line capacity to a network increases loads on other lines, effectively reducing the system's performance and potentially even entirely destabilizing its operating state. Combining simple analytical considerations with numerical investigations on a small sample network, we here study dynamical consequences of secondary control in AC power grid models. We demonstrate that sufficiently strong control not only implies dynamical stability of the system but may also cure Braess' paradox. Our results highlight the importance of demand control in conjunction with the grid topology to ensure stable operation of the grid and reveal a new functional benefit of secondary control.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Tchuisseu, Eder Batista Tchawou UNSPECIFIED UNSPECIFIED UNSPECIFIED Gomila, Damia UNSPECIFIED orcid.org/0000-0002-3500-3434 UNSPECIFIED Colet, Pere UNSPECIFIED orcid.org/0000-0002-5992-6292 UNSPECIFIED Witthaut, Dirk UNSPECIFIED orcid.org/0000-0002-3623-5341 UNSPECIFIED Timme, Marc UNSPECIFIED orcid.org/0000-0002-5956-3137 UNSPECIFIED Schaefer, Benjamin UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-176669
DOI:	10.1088/1367-2630/aad490
Journal or Publication Title:	New J. Phys.
Volume:	20
Date:	2018
Publisher:	IOP PUBLISHING LTD
Place of Publication:	BRISTOL
ISSN:	1367-2630
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language NETWORKS; SYNCHRONIZATION; INSTABILITIES; OSCILLATORS; SYSTEMS Multiple languages Physics, Multidisciplinary Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/17666