Table 7 Comparative analysis of virtual inertia control parameters
Types of Topology | Protection scheme | Grid-connectivity | Off-grid connectivity | Stability level | Model order | Model complexity |
|---|---|---|---|---|---|---|
VSG | Internal | Â | X | High | 1st | Simplified |
VSYNC | Internal | Â | X | High | 1st | Simplified |
Synchronverter | External | Â | Â | Medium | 2nd | Complex |
VISMA | External | Â | Â | Medium | 5th,7th | Complex |
SPC | Internal | Â | Â | Medium | Low-order | Simplified |
Inducverter | External | Â | X | Low | High-order | Complex |