Impact of temporary MMC blocking functionality on DC grid protection design
This 3rd Tech Talk on Offshore Energy Hubs explores the impact of converter operation during DC faults on the design and sizing of protection systems, focusing on the converter temporary blocking functionality (TBF). By relaxing design constraints on the converters and allowing them to temporarily block, this talk investigates the implications on the sizing of DC Reactors (DCR) and the current breaking capability of DC Circuit Breakers (DCCB) with varying operating times (2ms, 5ms, and 8ms).