Norway: Improving Wind Power Efficiency
The EETimes reports that a gearless synchronous generator developed by Germany's Siemens and recently installed in a Norwegian wind power plant has achieved an efficiency rating of 98 percent, according to the company.
Standard generators use a gearbox between the slow rotor and the fast generator to convert wind energy to electricity. However they lose energy to friction and heat.
The Siemens gearless generator uses permanent magnets to convert wind energy from the rotor to electricity.
gearless synchronous generator for wind power plants
posted by James at 1:57 pm
1 Comments:
The direct-drive alternator schemes have become so easy, amateurs are posting how-tos on the net.This brought home to me just how powerful permanent magnets have become; this would have been prohibitively expensive or hopelessly large and heavy with the magnets of only 20 years ago.
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