7. Assessment of stability, voltage-source behaviour, and passivity of grid forming inverters

March 23rd, 2026

Sohail Ahmad Ali, Mehdi Ghazavi Dozein, Behrooz Bahrani - Department of Electrical and Computer Systems Engineering Monash University, Melbourne, Australia.
Assessment of Stability, Voltage-Source Behavior, and Passivity
of Grid Forming Inverters

Assessment of Stability, Voltage-Source Behavior, and Passivity of Grid Forming Inverters

  • Conventional small-signal modeling approaches lack the modularity needed to represent
    inverter-based resources (IBRs) with diverse control architectures.
  • The Component Connection Method (CCM) provides a modular framework for unified
    small-signal modeling and stability analysis of grid-forming inverters.
  • While CCM enables detailed white-box analysis, differences in voltage-control (VC) implementations lead to varying stability and grid-support characteristics that are difficult
    to quantify from a black-box perspective.

When improvements in one objective compromise another, How should GFM technologies be quantitatively assessed and compared?