New ultrafast transmission technology is a boon for renewable energy
Capable of carrying electricity over long distances much more efficiently than alternating current (AC), HVDC transmission is seen as a way of transporting renewable energy from remote utility-scale locations — such as desert solar power facilities and offshore wind farms — to consumption centers at much lower cost than existing transmission infrastructure.
Big boost for renewable energy: ABB’s game changing hybrid, REneweconomy, By Cleantechnica 12 November 2012 Solving a problem that has handicapped use of high-voltage direct current (HVDC) in transmission lines, networks, and power grids for more than 100 years, multinational power engineering giant ABB has announced that it has designed and developed a hybrid DC breaker capable of interrupting DC power flows “equivalent to the output of a nuclear power station within five milliseconds… as fast as a honeybee takes per flap of its wings.”
The hybrid DC breaker combines “advanced ultrafast mechanical actuators with ABB’s in-house semiconductor IGBT valve technologies or power electronics.” ABB management deems it a “game changer.”
Capable of carrying electricity over long distances much more efficiently than alternating current (AC), HVDC transmission is seen as a way of transporting renewable energy from remote utility-scale locations — such as desert solar power facilities and offshore wind farms — to consumption centers at much lower cost than existing transmission infrastructure.
Stopping HVDC Flows Faster than the Blink of an Eye
According to ABB, the breakthrough hybrid DC breaker “removes a
significant stumbling block in the development of HVDC transmission
grids where planning can start now. These grids will enable
interconnection and load balancing between HVDC power superhighways
integrating renewables and transporting bulk power across long
distances with minimal losses,” technology manager for grid systems
and HVDC grids program manager Magnus Callavik writes in a Nov. 7 post
on the ABB Conversations blog.
“DC grids will enable sharing of resources like lines and converter
stations that provides reliability and redundancy in a power network
in an economically viable manner with minimal losses. ABB’s new Hybrid
HVDC breaker, in simple terms will enable the transmission system to
maintain power flow even if there is a fault on one of the lines.”
[sic]…. http://reneweconomy.com.au/2012/big-boost-for-renewable-energy-abb-develops-game-changing-hybrid-hvdc-breaker-78956
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