06 Mar '12, 6pm

DC Power Renaissance Comes to Shipping: The switch from alternating current to direct current power delivery w...

DC Power Renaissance Comes to Shipping: The switch from alternating current to direct current power delivery w...

The switch from alternating current to direct current power delivery was a mega trend in data centers in 2011, with companies such as Facebook and Google moving towards ultra-efficient DC data centers. The trend is continuing in 2012, but not just for servers. ABB recently announced an order for the first DC power grid aboard a ship. The new power system allows for the ship’s propulsion system to run at a variable speed and maximize efficiency. “No one had done this before because there are a lot of rules and requirements to fulfill,” said Sindre Satre, SVP of Marine and Cranes in ABB's process automation division, “and people are prone to continue to do the same as before.” In the traditional design of propulsion systems, the DC power is converted through an AC switchboard and then fed to the thrusters and propulsion drives. In the new onboard DC grid, ABB removes the swi...

Full article: http://www.greentechmedia.com/articles/read/DC-Power-Rena...

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