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There are many already existing HVDC transmission lines, e.g.: https://en.m.wikipedia.org/wiki/File:HVDC_Europe.svg https://en.m.wikipedia.org/wiki/File:HVDC_E
by cesis 6y ago
There are many already existing HVDC transmission lines, e.g.:
https://en.m.wikipedia.org/wiki/File:HVDC_Europe.svg https://en.m.wikipedia.org/wiki/File:HVDC_Europe.svg
- giva 6y agoI think they are mostly used when an AC trasmission is impossible: AFAIK only synchronized grids can be connected by AC. https://upload.wikimedia.org/wikipedia/commons/6/6d/ElectricityUCTE.svg https://upload.wikimedia.org/wikipedia/commons/6/6d/Electric...
- emilfihlman 6y agoYou are entirely correct. Power between different AC regions is mostly transferred using HVDC-links because it avoids synchronisation requirements between them. Additionally the capacitive losses of an undersea HVAC cable are prohibitive, leaving only HVDC as an option.
- deleted 6y ago[deleted]
- emilfihlman 6y agoYou'll notice almost all of these are undersea cables. HVDC connections are used there because you can't really hang air cables over the ocean and the capacitive losses of HVAC cables under the sea makes them prohibitive.