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Location-Dependent Impacts of Resource Inertia on Power System Oscillations

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Title:Location-Dependent Impacts of Resource Inertia on Power System Oscillations
Authors:Xu, Ti
Jang, Wonhyeok
Overbye, Thomas J.
Keywords:Resilient Networks
power system oscillations, resource inertia, locational impacts, modal analysis
Date Issued:03 Jan 2018
Abstract:Inertial responses are seen by the system as the injection or withdrawal of electrical energy, corresponding to a change of frequency. The inertia of a machine primarily contributes to the power system transient stability. Oscillations are always present in the bulk power system due to the electromechanical nature of the grid. Poorly damped oscillations may cause system instability. Thus, this paper aims to study inertia's impacts on system primary frequency response, in particular on system oscillation modes. Both transient stability simulations and modal analysis are performed to provide insights into the extent to which inertia and its location influence the system oscillation behavior. Simulation results using both a small-scale test system and a large-scale synthetic network dynamic model are presented to verify the locational impacts of resource inertia.
Pages/Duration:6 pages
Rights:Attribution-NonCommercial-NoDerivatives 4.0 International
Appears in Collections: Resilient Networks

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