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  Curing Braess' paradox by secondary control in power grids

Tchuisseu, E. B. T., Gomila, D., Colet, P., Witthaut, D., Timme, M., & Schäfer, B. (2018). Curing Braess' paradox by secondary control in power grids. New Journal of Physics, 20(08): 083005. doi:10.1088/1367-2630/aad490.

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Genre: Journal Article

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 Creators:
Tchuisseu, E. B. T., Author
Gomila, D., Author
Colet, P., Author
Witthaut, D., Author
Timme, Marc1, Author              
Schäfer, Benjamin1, Author              
Affiliations:
1Max Planck Research Group Network Dynamics, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063295              

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Free keywords: control, stability, power grid, Braess paradox, smart grid
 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.

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Language(s): eng - English
 Dates: 2018-08-06
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1088/1367-2630/aad490
 Degree: -

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Title: New Journal of Physics
Source Genre: Journal
 Creator(s):
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Publ. Info: -
Pages: 14 Volume / Issue: 20 (08) Sequence Number: 083005 Start / End Page: - Identifier: -