Virtual Oscillator Controlled Grid Forming Inverters Modelling and Testing in Phasor Domain

The grid forming inverter (GFMI) is a promising solution for the challenges introduced to the electrical grid by the high penetration of the inverter-based resources (IBRs). In this paper, GFMI with a virtual oscillator based on Andronov-Hopf oscillator dynamics control is modeled and tested in the phasor domain using DIgSILENT environment. To further investigate the inverter performance and operation, it is implemented in the IEEE 13 node distribution feeder. The results show that the inverter has a superior performance and the ability to stabilize frequency and voltage during disturbances in both grid-connected and islanded modes.