Type of Inverter | Type of source | Type of control | MG mode operation |
Grid-feeding | Ideal current source | Follows P-Q (ref) | Only suitable for on-grid |
Grid-forming | Ideal voltage source | Provides V-f (ref) | Only suitable for off-grid |
Grid-support grid-feeding | Droop controlled current source | Adjusts P-Q (ref) (according to V-f level) | Suitable for both modes (on-grid and off-grid) |
Grid-support grid-forming | Droop controlled voltage source | Provides V-f (ref ) (according to P-Q level) | Suitable for both modes (on-grid and off-grid) |