Improving Stability of Low-Inertia Systems using Virtual Induction Machine Synchronization for Grid-Following Converters

This paper presents a novel strategy for the synchronization of grid-following Voltage Source Converters (VSCs) in power systems with low rotational inertia. The proposed unit is based on emulating physical properties an induction machine and capitalizes its inherent grid-friendly such as self-synchronization, oscillation damping, standalone capabilities. To this end, mathematical model analyzed reformulated to obtain unknown grid frequency by processing voltage current measurements at converter output. eliminates need Phase-Locked Loop (PLL) unit, traditionally employed VSC control schemes, while simultaneously preserving system- device-level control. Furthermore, we provide appropriate steps obtaining index-1 DAE representation induction-machine-based suitable stability analysis. Our analysis shows that replacing PLL virtual machine-based may considerably improve converters facilitate containment. validate performance through simulations recommendations tuning.