The virtual oscillator based grid forming inverter topologies are broadly divided into two categories. First one is Lienard oscillators (Van der Pol, Dead-zone). The second one is Consensus based oscillators (Andronov-Hopf).

Lienard type oscillator based inverter control is non-dispatchable in nature, that means we could not regulate the power output through converter according to the reference setpoints. These can form the grid and regulate the power proportionately according to their ratings with the parallel inverters.

On the contrary, Consensus based oscillators are dispatchable in nature. These can regulate the voltage output as well as the power. Consensus based oscillators can work in both stand-alone and grid connected mode. These can form the grid as well as follows the grid.