Novel Power Control of Voltage-Controlled Inverters for Grid Inertia Support

Nowadays, the voltage-controlled inverter for grid-connected application has been paid great attentions due to its advantages. The power control is important for the voltage-controlled grit-tied inverter to realize advanced function, such as the droop control or virtual-synchronous-generator control. For the power control purpose, this paper proposed a design method for the inertia support control. Compared with the conventional power control, the inertia time and the power amplitude can be customized when grid frequency changes. The detailed design method is provided and verified by the experiment results.