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Varying Grid Frequency in DigSILENT for LFSM Testing

The author is struggling to set up a dynamic simulation in DigSILENT PowerFactory to test Low Frequency Stability Margin (LFSM) for a grid-forming inverter. They need to apply frequency deviations to the grid, measure the inverter's active power response, and validate droop/LFSM behavior. However, they are unsure how to control or vary the external grid frequency, implement frequency steps or ramps, and ensure the inverter responds correctly.

Engineering, Core Engineering, Electrical Engineering