Synchronization in electric power networks with inherent heterogeneity up to 100% inverter-based renewable generation

Sajadi, Amirhossein; Kenyon, Rick Wallace; Hodge, Bri-Mathias

doi:10.1038/s41467-022-30164-3

Synchronization in electric power networks with inherent heterogeneity up to 100% inverter-based renewable generation

Journal Article · Thu May 05 00:00:00 EDT 2022 · Nature Communications

DOI:https://doi.org/10.1038/s41467-022-30164-3· OSTI ID:1869276

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Univ. of Colorado, Boulder, CO (United States)
National Renewable Energy Lab. (NREL), Golden, CO (United States)

The synchronized operation of power generators is the foundation of electric power network stability and a key to the prevention of undesired power outages and blackouts. Here, we derive the conditions that guarantee synchronization in power networks with inherent generator heterogeneity when subjected to small perturbations, and perform a parametric sensitivity analysis to understand synchronization with varied types of generators. As inverter-based resources, which are the primary interfacing technology for many renewable sources of energy, have supplanted synchronous generators in ever growing numbers, the center of attention on associated integration challenges have resided primarily on the role of declining system inertia. Our results instead highlight the critical role of generator damping in achieving a stable state of synchronization. Additionally, we report the feasibility of operating interconnected electric grids with up to 100% power contribution from inverter-based renewable generation technologies. Our study has important implications as it sets the basis for the development of advanced control architectures and grid optimization methods that ensure synchronization and further pave the path towards the decarbonization of the electric power sector.

View Accepted Manuscript (DOE)

Research Organization:: National Renewable Energy Laboratory (NREL), Golden, CO (United States)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE)

Grant/Contract Number:: AC36-08GO28308

OSTI ID:: 1869276

Report Number(s):: NREL/JA-6A40-82489; MainId:83262; UUID:2cfdee17-67e7-40b7-836c-b8f2a22ff08b; MainAdminID:64537

Journal Information:: Nature Communications, Journal Name: Nature Communications Journal Issue: 1 Vol. 13; ISSN 2041-1723

Publisher:: Nature Publishing GroupCopyright Statement

Country of Publication:: United States

Language:: English

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Synchronization in electric power networks with inherent heterogeneity up to 100% inverter-based renewable generation

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