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

Abstract

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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