Low-Level Simulation of a Grid-Following Inverter with Synthetic Inertia

Future commercial inverters should be equipped with dedicated control techniques to mimic the behavior of traditional synchronous machines, providing the so-called synthetic inertia. This is necessary to prevent large frequency fluctuations in response to power imbalances, in power grids with a high penetration of renewable energy sources. In this work, synthetic inertia capabilities have been added to a detailed model of a commercial inverter. Low-level simulations have been performed to assess the converter performance, by considering real effects such as switching noise, sampling, delays, and dynamics.