Stability Analysis for a Grid-Forming Converter with Inverse Droop Connected to an Infinite Bus

Modern power systems require grid-forming converters to maintain the stability of the grid. These converters are designed to emulate the transient behavior of the synchronous machines in high-power applications. However, low-power applications present different dynamics, especially in microgrids where the ratio
$r$
/
$x$
is high. Therefore, it is necessary to analyze a grid-forming converter with inverse droops to guarantee stability in those applications. This paper studies the stability of this type of device for a single converter connected to an infinite bus. The small-signal and transient stability is analyzed under realistic assumptions. Numerical experiments complement the theoretical analysis