Converter-interfaced renewable energy sources and VSC HVDC links are increasingly being used, meanwhile, synchronous generation is gradually being phased out. Consequently, characteristics of the system during short circuit faults is changed and will continue to evolve as more converters are being installed in the future. Unconventional fault current sources challenge the legacy protection that is currently installed in the grid. This presentation will look into converter control impacts on AC protection, and focus on the testing performed by KU Leuven / EnergyVille towards understanding interactions and solutions for the protection of future grids. The studies include impact of converter controls during faults
on conventional distance protection and on novel protection concepts such as time-domain protection.
Joachim Vermunich | KU Leuven and EnergyVille