@misc{f4dc8646c1f545188b3d2f9e02436087,
title = "Sequence Impedance Modeling of Grid-Forming Inverters",
abstract = "Grid-forming control of inverter-based resources has been identified as a critical technology for operating power systems with high levels of inverter-based resources. This paper presents the sequence impedance modeling of a grid-forming inverter to evaluate its small-signal stability properties. Droop control structure is implemented to control the inverter in grid-forming mode, and the impact of individual controller on the inverter impedance characteristics is discussed. The developed sequence impedance model is compared with that of the grid-following inverter. It is found from the developed sequence impedance models that grid-forming inverters are less prone to harmonic resonance problems during operation with weaker grids. The developed models are validated using PSCAD simulations.",
keywords = "grid-following inverter, grid-forming inverter, impedance modeling, stability",
author = "Weihang Yan and Shahil Shah and Vahan Gevorgian and David Gao",
year = "2021",
language = "American English",
series = "Presented at the 2021 IEEE Power & Energy Society General Meeting, 26-29 July 2021",
type = "Other",
}