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Reluctant heroes (The Economist)

An electric motor that does not need expensive rare-earth magnets - including the work of James Widmer

From The Economist:

"The researchers at Newcastle are working with Tata Steel, part of an Indian conglomerate, on using special steels to exploit the magnetic flux more effectively and hence extract more power. They are also collaborating with a local firm, Sevcon, which makes power electronics, and Cummins Generator Technologies, part of an American group which builds engines, on reluctance motors for hybrid trucks. James Widmer, who leads the Centre for Advanced Electrical Drives, one of the reluctance-engine-research groups at Newcastle, says that by running their new motors at high speeds it should be possible to outperform the best fixed-magnet motors, and to do so at lower cost."

Published: 16th November 2012