Comment by namibj

Nah, just do a few divide-by-2 capacitive converter stages to tame it. Basically just a FC-3L buck running at exactly half to not need meaningful amounts of inductance. Feed the radiation to adjacent phases of a radially symmetric setup, and it shouldn't be an issue anymore.

These classic HVDC transformers only exist because those lines plug directly into the AC grid; it's easier to just tame the HVDC and keep it DC for a bit, though, at these extreme facility sizes.