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Stability and control of power grids with diluted network topology

Liudmila Tumash 1 Simona Olmi 2 Eckehard Schöll 3
1 NECS-POST - Systèmes Commandés en Réseau
Inria Grenoble - Rhône-Alpes, GIPSA-DA - Département Automatique
2 MATHNEURO - Mathématiques pour les Neurosciences
CRISAM - Inria Sophia Antipolis - Méditerranée
Abstract : In the present study we consider a random network of Kuramoto oscillators with inertia in order to mimic and investigate the dynamics emerging in high-voltage power grids. The corresponding natural frequencies are assumed to be bimodally Gaussian distributed, thus modeling the distribution of both power generators and consumers: for the stable operation of power systems these two quantities must be in balance. Since synchronization has to be ensured for a perfectly working power grid, we investigate the stability of the desired synchronized state. We solve this problem numerically for a population of N rotators regardless of the level of quenched disorder present in the topology. We obtain stable and unstable solutions for different initial phase conditions, and we propose how to control unstable solutions, for sufficiently large coupling strength, such that they are stabilized for any initial phase. Finally, we examine a random Erd\"os-Renyi network under the impact of white Gaussian noise, which is an essential ingredient for power grids in view of increasing renewable energy sources.
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Submitted on : Thursday, November 21, 2019 - 4:10:41 PM
Last modification on : Thursday, November 19, 2020 - 1:01:31 PM

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Liudmila Tumash, Simona Olmi, Eckehard Schöll. Stability and control of power grids with diluted network topology. Chaos: An Interdisciplinary Journal of Nonlinear Science, American Institute of Physics, 2019, 29, pp.123105. ⟨10.1063/1.5111686⟩. ⟨hal-02374725⟩



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