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  Dynamic control of intermittent renewable energy fluctuations in two-layer power grids

Olmi, S., Totz, C. H., Schöll, E. (2021): Dynamic control of intermittent renewable energy fluctuations in two-layer power grids. - Cybernetics and Physics, 10, 3, 143-154.

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 Creators:
Olmi, Simona1, Author
Totz, Carl H.1, Author
Schöll, Eckehard2, Author              
Affiliations:
1External Organizations, ou_persistent22              
2Potsdam Institute for Climate Impact Research, Potsdam, ou_persistent13              

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Free keywords: Nonlinear complex networks; power grids; synchronization; stability analysis; control
 Abstract: In this work we model the dynamics of power grids in terms of a two-layer network, and use the Italian high voltage power grid as a proof-of-principle example. The first layer in our model represents the power grid con- sisting of generators and consumers, while the second layer represents a dynamic communication network that serves as a controller of the first layer. The dynamics of the power grid is modelled by the Kuramoto model with inertia, while the communication layer provides a con- trol signal Pci for each generator to improve frequency synchronization within the power grid. We propose dif- ferent realizations of the communication layer topology and of the control signal, and test the control perfor- mances in presence of generators with stochastic power output. When using a control topology that allows all generators to exchange information, we find that a con- trol scheme aimed to minimize the frequency difference between adjacent nodes operates very efficiently even against the worst scenarios with the strongest perturba- tions. On the other hand, for a control topology where the generators possess the same communication links as in the power grid layer, a control scheme aimed at restor- ing the synchronization frequency in the neighborhood of the controlled node turns out to be more efficient.

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 Dates: 2021-10-312021-11-252021-11-302021-11-30
 Publication Status: Finally published
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: MDB-ID: No data to archive
PIKDOMAIN: RD4 - Complexity Science
Organisational keyword: RD4 - Complexity Science
Research topic keyword: Complex Networks
Research topic keyword: Nonlinear Dynamics
Model / method: Quantitative Methods
 Degree: -

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Title: Cybernetics and Physics
Source Genre: Journal, Scopus
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Pages: - Volume / Issue: 10 (3) Sequence Number: - Start / End Page: 143 - 154 Identifier: CoNE: https://publications.pik-potsdam.de/cone/journals/resource/cybernetics-and-physics
Publisher: The International Physics And Control Society (IPACS)