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On the other hand, having a continent-scale AC grid is not just possible but common. Europe and North Africa have one, Russia has one, China has one, the US has two or three. Meanwhile multiterminal HVDC is basically experimental stuff that's only possible with real-time digital control systems.


Having a worldwide data network is also only possible with real-time digital control systems as well

The issue is one of technology (having high powered switching components only took of in the last 30? yrs or something) and legacy

(Edit: IGBTs are from the 80's though it seems the 1st generation wasn't that great, IGCTs from the late 90s https://mb-drive-services.com/experience-with-igct-based-vfd...




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