ABB has completed the upgrade and refurbishment of the three high voltage direct current (HVDC) converter stations on the power transmission link that delivers hydropower from Qu├ębec, Canada to New England, US.

ABB has completed the upgrade and refurbishment of the three high voltage direct current (HVDC) converter stations on the power transmission link that delivers hydropower from Québec, Canada to New England, US.

The upgrade of the world’s first multi-terminal link was completed for utilities Hydro-Québec and National Grid. The 1500km link originally entered service in the early 1990s, and has provided the highly populated areas of Montreal and Boston with hydropower. With a total capacity of 2000MW, the link can provide enough hydro-electricity for 3.8 million people, based on average US household consumption.

A critical part of the project has been ensuring minimal power interference and enabling commercial operation to be restored swiftly. As part of this latest upgrade, ABB has replaced the link’s hardware and software with its state-of-the-art MACH control and protection system. This ensures a continued, reliable and highly controllable power supply and enables advanced smart-grid studies for further grid optimization in a timely manner, the company said.

“We pioneered HVDC technology and continue to lead the way through innovation, as with the latest control system being installed for this project” said Patrick Fragman, Managing Director of ABB’s Grid systems business, a part of the company’s Power Grids division. “The upgrade of the world’s first multi-terminal link reinforces ABB’s commitment to supporting customers through the lifecycle, and reiterates our focus on the service business, as part of our Next Level Strategy.”