| LCC | Line commutated converter |
| VSC | Voltage source converter |
| RMS | Root mean square |
| FRT | Fault ride-through |
| HVDC | High voltage direct current |
| SFCL | Superconducting fault current limiter |
| YBCO | Yttrium barium copper oxide |
| VOCOL | Voltage-dependent current order limiter |