T&D World Magazine
ABB station

ABB Commissions HVDC Station Upgrade for Canadian interconnection

Extended lifetime provided for high-voltage direct current (HVDC) back-to-back station

ABB has successfully commissioned the upgraded 42-year-old Eel River HVDC back-to-back station in New Brunswick, Canada. This upgraded link, which was handed over to customer NB Power, secures a reliable power exchange between the New Brunswick and Hydro Quebec grids.

The converter station provides a bi-directional asynchronous interconnection in the south-eastern part of Canada. ABB replaced the existing equipment, originally installed in 1972, with the latest converter valves and state-of-the-art MACH control and protection system. Furthermore, the old valve cooling system was upgraded from an air-cooled system to a water-cooled system. The upgrade reduced the total valve and cooling system losses by approximately 65 percent.

“In addition to enhancing grid reliability and power stability, our HVDC solution enables efficient transmission of electricity across this important interconnection,” said Olof Heyman, head of ABB’s HVDC business, a part of the Power Systems division. “ABB’s flexible MACH control system enables the interface with existing equipment on site.”

“This work was essential to NB Power’s operations and we are very proud to have had highly qualified, local contractors and trades workers work with ABB to contribute to the project and create work opportunities in the region. These upgrades will allow our customers to continue experiencing the benefits of this station while helping us keep our rates low and stable over time,” said NB Power President and CEO, Gaëtan Thomas.

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