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
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