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Zurich, Switzerland, April 15, 2008 -- ABB has been selected by Hydro-Quebec, Canada, for an upgrade of a high-voltage, direct current (HVDC) converter station. The 25-year-old 1000-MW Chateauguay back-to-back HVDC station will be equipped with ABB's control and protection system, MACH 2.
The MACH 2 system is a commonly used control system for HVDC and FACTS (flexible AC transmission systems) with over 400 systems in operation. It is used in all types of HVDC installations from small HVDC Light installations, to large 3,000-MW power links.
Recent upgrade projects delivered by ABB include the Square Butte and the CU HVDC links in the U.S., the two Skagerrak HVDC links in Scandinavia and the on-going refurbishment of the Apollo converter station of the Cahora Bassa HVDC link in Southern Africa.
The new control and protection system in Chateauguay will be commissioned during April and May in 2009, with an outage time of only seven weeks. Since the station comprises two blocks and each block will be renovated separately, the station will maintain at least half of its capacity during the installation period.
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