Pacific dc intertie

[junkhound]

I have been trying to find an internet link that discusses the superconducting smoothing inductor at the John Day end of the Pacific dc intertie, have not been able to find any detail.
Decades ago, work with a man who had worked on a demonstration superconducting inductor for the line, but cannot find any details such as inductance, type of superconductor (probably not HTS)

anyone have a link?
There are plenty of hits on the pacific intertie and the rectifiers, inverters, lines, etc, but cannot find any inductor specifics except for current and voltage capabilities. IIRC they were in the 120 mH range, 1350 amps, 500kV - have seen the current and voltage referenced, but not the inductance.

 

[junkhound]

Just bumping the listing.

145 looks, no replies? Not a spam even?

Maybe expand the question:

Anyone have experience with superconducting inductors or energy storage?

 

[gadfly56]

Are you sure such a thing has actually been installed? I've been in one facility where they did AC/DC conversion to run from New Jersey to Long Island. Everything is room-temperature thyristors.

The only thing I could find was a Wiki article that seemed to indicate that the conversion is done for the Pacific Inter-tie with thyristors as well. See here.

And the two ends are Sylmar and Celilo, no mention of John Day.

 

[Rampage_Rick]

I believe the Superconducting Magnetic Energy Storage system is used on the Pacific AC Intertie

See here: http://www.iaea.org/inis/collection/NCLCollectionStore/_Public/13/701/13701251.pdf

Also here: http://www.iaea.org/inis/collection/NCLCollectionStore/_Public/17/003/17003068.pdf

The 30 MJ, 10 MW superconducting magnetic energy storage (SMES) system was devised to interact in the Western U.S. Power System as an alternate means to damp unstable oscillations at 0.35 Hz on the Pacific HVAC Intertie. The SMES unit was installed at the Tacoma Substation of the Bonneville Power Administration (BPA).

First energized in 1983!

 

[junkhound]

aha - the first link is what I was searching for.

Thank you.

 

[Sierrasparky]

Interesting stuff.