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Power: HVDC for the long run: High-voltage de transmission may be a viable alternative to ac transmission for long-distance routes

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2 Author(s)
Ellert, F.J. ; General Electric Co., Philadelphia, PA, USA ; Hingorani, N.G.

High-voltage d.c. transmission has proved a promising competitor to conventional extra-high-voltage a.c. transmission under several conditions-where long transmission distances from generation to load centers exist; where asynchronous ties are required; or where underground or underwater cables of considerable length are necessary. Now, developments are underway on higher-voltage overhead lines and cables, higher rated converters, more versatile controls, d.c. breakers, improved sensors, and compact substations that will permit HVDC to play an ever-greater role in future power transmission.

Published in:

Spectrum, IEEE  (Volume:13 ,  Issue: 8 )