Noun
HVDC (uncountable)
Initialism of high voltage direct current.
Above a certain break-even distance (about 50 km for submarine cables, and perhaps 600–800 km for overhead cables), the lower cost of the HVDC electrical conductors outweighs the cost of the electronics. Source: Internet
Advantages of HVDC over AC transmission A long distance point to point HVDC transmission scheme generally has lower overall investment cost and lower losses than an equivalent AC transmission scheme. Source: Internet
An example is the 2,000 MW Quebec - New England Transmission system opened in 1992, which is currently the largest multi-terminal HVDC system in the world. Source: Internet
A major upgrade of the HVDC link commissioned in 2013 increased the capacity of the link from 700 MW to 1,000 MW from 2012, and 1,200 MW from 2014. Source: Internet
As a result, harmonic filters are nearly always required at the AC terminals of such converters, and in HVDC transmission schemes using overhead lines, may also be required on the DC side. Source: Internet
An additional advantage of the existence of HVDC links, therefore, is potential increased stability in the transmission grid. Source: Internet