Grid Forming converters (GFM), based on virtual synchronous machine, synchronverter, and droop-based control, provide inductive impedance behavior at the Point of Common Coupling (PCC). Controller has very limited capability to shape this inductive behavior for small-signal instability prevention. In this paper, Virtual resistor (π π£) is utilized to shape GFM controller impedance, ππππ£, in wide-frequency range. It aids to get high GFM converter impedance at the PCC, ππππ, in low frequency range. Moreover, cross-coupling terms of virtual inductor (πΏπ£) is utilized to decouple the system impedances in dq-frame at the PCC. The combined effect of π π£ and πΏπ£ reshapes the converter impedance with selective resistive behavior in low frequency range.
