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Inertia emulation contribution of Frades 2 variable speed pump-turbine to power network stability

Authors: C Nicolet, A Beguin, M Dreyer, S Alligne, A Jung, D Cordeiro, C Moreira

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This paper is addressing the quantification and the comparison of pumped storage power plants, PSPP, contribution to synchronous interia and synthetic inertia when fixed speed and variable speed motor-generators technologies are considered, respectively. Therefore, a grid stability study was conducted by means of 1D SIMSEN simulation for the 2 x 395 MW PSPP Frades 2 in Portugal with both fixed speed and variable speed technologies in case of operation connected to an infinite power network or to an islanded 4.4 GW synchronous power network.

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