Variable-frequency transformer: Difference between revisions

Revision as of 06:03, 5 March 2018

Revision as of 13:00, 21 July 2018

Line 14:

Langlois Substation in [[Québec]], [[Canada]] ({{Coord|45|17|13.76|N|74|0|56.07|W|}}) installed a 100 MW variable-frequency transformer in 2004 to connect the asynchronous grids in Québec and the [[northeastern United States]]. This was the first large scale, commercial variable frequency transformer, and was installed at [[Hydro-Québec]] Langlois substation and is located electrically near sixteen hydro generators at [[Les Cèdres, Quebec]] and thirty-six more hydro generators at [[Beauharnois, Quebec]]. The operating experience since April 2004 has demonstrated the VFT’s inherent compatibility with the nearby generators<ref> Marchen, P.E, Marczewski, J.J, D'Aquila, R, Hassink, P., Roedel, J.H. and Bodo, R.L. (2014). VFT – A Smart Transmission Technology That Is Compatible With the Existing and Future Grid. Power Systems Conference and Exposition, 2009, 1-7. doi:10.1109/PSCE.2009.4840083 Retrieved from https://www.academia.edu/10527124/VFT_A_Smart_Transmission_Technology_That_Is_Compatible_With_the_Existing_and_Future_Grid?auto=download&campaign=weekly_digest </ref>

AEP Texas installed a 100 MW VFT substation in [[Laredo, Texas|Laredo]], Texas, [[United States]] ({{Coord|27|34|13.64|N|99|30|34.98|W|}}) in early 2007. It connects the power systems of [[ERCOT]] (in the United States) to [[Comisión Federal de Electricidad|CFE]] (in Mexico). (See [https://web.archive.org/web/20150621212836/http://www.ettexas.com/projects/vft.asp The Laredo VFT Project].)

Smaller VFTs are used in large land-based [[wind turbine]]s, so that the turbine rotation speed can vary while connected to an [[electric power distribution]] [[electrical grid|grid]].